352 lines
17 KiB
JSON
352 lines
17 KiB
JSON
{
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"dataType": "CVE_RECORD",
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"cveMetadata": {
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"cveId": "CVE-2023-52443",
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"assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
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"state": "PUBLISHED",
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"assignerShortName": "Linux",
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"dateReserved": "2024-02-20T12:30:33.291Z",
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"datePublished": "2024-02-22T16:13:31.154Z",
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"dateUpdated": "2026-05-11T19:27:25.961Z"
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},
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"containers": {
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"cna": {
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"providerMetadata": {
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"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
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"shortName": "Linux",
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"dateUpdated": "2026-05-11T19:27:25.961Z"
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},
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"descriptions": [
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{
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"lang": "en",
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"value": "In the Linux kernel, the following vulnerability has been resolved:\n\napparmor: avoid crash when parsed profile name is empty\n\nWhen processing a packed profile in unpack_profile() described like\n\n \"profile :ns::samba-dcerpcd /usr/lib*/samba/{,samba/}samba-dcerpcd {...}\"\n\na string \":samba-dcerpcd\" is unpacked as a fully-qualified name and then\npassed to aa_splitn_fqname().\n\naa_splitn_fqname() treats \":samba-dcerpcd\" as only containing a namespace.\nThus it returns NULL for tmpname, meanwhile tmpns is non-NULL. Later\naa_alloc_profile() crashes as the new profile name is NULL now.\n\ngeneral protection fault, probably for non-canonical address 0xdffffc0000000000: 0000 [#1] PREEMPT SMP KASAN NOPTI\nKASAN: null-ptr-deref in range [0x0000000000000000-0x0000000000000007]\nCPU: 6 PID: 1657 Comm: apparmor_parser Not tainted 6.7.0-rc2-dirty #16\nHardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.2-3-gd478f380-rebuilt.opensuse.org 04/01/2014\nRIP: 0010:strlen+0x1e/0xa0\nCall Trace:\n <TASK>\n ? strlen+0x1e/0xa0\n aa_policy_init+0x1bb/0x230\n aa_alloc_profile+0xb1/0x480\n unpack_profile+0x3bc/0x4960\n aa_unpack+0x309/0x15e0\n aa_replace_profiles+0x213/0x33c0\n policy_update+0x261/0x370\n profile_replace+0x20e/0x2a0\n vfs_write+0x2af/0xe00\n ksys_write+0x126/0x250\n do_syscall_64+0x46/0xf0\n entry_SYSCALL_64_after_hwframe+0x6e/0x76\n </TASK>\n---[ end trace 0000000000000000 ]---\nRIP: 0010:strlen+0x1e/0xa0\n\nIt seems such behaviour of aa_splitn_fqname() is expected and checked in\nother places where it is called (e.g. aa_remove_profiles). Well, there\nis an explicit comment \"a ns name without a following profile is allowed\"\ninside.\n\nAFAICS, nothing can prevent unpacked \"name\" to be in form like\n\":samba-dcerpcd\" - it is passed from userspace.\n\nDeny the whole profile set replacement in such case and inform user with\nEPROTO and an explaining message.\n\nFound by Linux Verification Center (linuxtesting.org)."
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}
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],
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"affected": [
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{
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"product": "Linux",
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"vendor": "Linux",
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"defaultStatus": "unaffected",
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"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
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"programFiles": [
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"security/apparmor/policy_unpack.c"
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],
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"versions": [
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{
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"version": "04dc715e24d0820bf8740e1a1135ed61fe162bc8",
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"lessThan": "9286ee97aa4803d99185768735011d0d65827c9e",
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"status": "affected",
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"versionType": "git"
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},
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{
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"version": "04dc715e24d0820bf8740e1a1135ed61fe162bc8",
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"lessThan": "1d8e62b5569cc1466ceb8a7e4872cf10160a9dcf",
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"status": "affected",
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"versionType": "git"
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},
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{
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"version": "04dc715e24d0820bf8740e1a1135ed61fe162bc8",
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"lessThan": "5ff00408e5029d3550ee77f62dc15f1e15c47f87",
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"status": "affected",
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"versionType": "git"
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},
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{
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"version": "04dc715e24d0820bf8740e1a1135ed61fe162bc8",
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"lessThan": "0a12db736edbb4933e4274932aeea594b5876fa4",
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"status": "affected",
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"versionType": "git"
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},
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{
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"version": "04dc715e24d0820bf8740e1a1135ed61fe162bc8",
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"lessThan": "9d4fa5fe2b1d56662afd14915a73b4d0783ffa45",
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"status": "affected",
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"versionType": "git"
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},
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{
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"version": "04dc715e24d0820bf8740e1a1135ed61fe162bc8",
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"lessThan": "5c0392fdafb0a2321311900be83ffa572bef8203",
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"status": "affected",
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"versionType": "git"
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},
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{
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"version": "04dc715e24d0820bf8740e1a1135ed61fe162bc8",
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"lessThan": "77ab09b92f16c8439a948d1af489196953dc4a0e",
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"status": "affected",
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"versionType": "git"
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},
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{
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"version": "04dc715e24d0820bf8740e1a1135ed61fe162bc8",
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"lessThan": "55a8210c9e7d21ff2644809699765796d4bfb200",
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"status": "affected",
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"versionType": "git"
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}
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]
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},
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{
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"product": "Linux",
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"vendor": "Linux",
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"defaultStatus": "affected",
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"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
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"programFiles": [
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"security/apparmor/policy_unpack.c"
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],
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"versions": [
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{
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"version": "4.11",
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"status": "affected"
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},
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{
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"version": "0",
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"lessThan": "4.11",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "4.19.306",
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"lessThanOrEqual": "4.19.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "5.4.268",
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"lessThanOrEqual": "5.4.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "5.10.209",
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"lessThanOrEqual": "5.10.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "5.15.148",
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"lessThanOrEqual": "5.15.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "6.1.75",
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"lessThanOrEqual": "6.1.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "6.6.14",
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"lessThanOrEqual": "6.6.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "6.7.2",
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"lessThanOrEqual": "6.7.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "6.8",
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"lessThanOrEqual": "*",
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"status": "unaffected",
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"versionType": "original_commit_for_fix"
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}
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]
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}
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],
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"cpeApplicability": [
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{
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"nodes": [
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{
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"operator": "OR",
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"negate": false,
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"cpeMatch": [
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{
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"vulnerable": true,
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "4.11",
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"versionEndExcluding": "4.19.306"
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},
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{
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"vulnerable": true,
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "4.11",
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"versionEndExcluding": "5.4.268"
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},
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{
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"vulnerable": true,
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "4.11",
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"versionEndExcluding": "5.10.209"
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},
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{
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"vulnerable": true,
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "4.11",
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"versionEndExcluding": "5.15.148"
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},
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{
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"vulnerable": true,
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "4.11",
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"versionEndExcluding": "6.1.75"
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},
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{
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"vulnerable": true,
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "4.11",
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"versionEndExcluding": "6.6.14"
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},
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{
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"vulnerable": true,
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "4.11",
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"versionEndExcluding": "6.7.2"
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},
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{
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"vulnerable": true,
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "4.11",
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"versionEndExcluding": "6.8"
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}
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]
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}
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]
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}
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],
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"references": [
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{
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"url": "https://git.kernel.org/stable/c/9286ee97aa4803d99185768735011d0d65827c9e"
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},
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{
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"url": "https://git.kernel.org/stable/c/1d8e62b5569cc1466ceb8a7e4872cf10160a9dcf"
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},
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{
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"url": "https://git.kernel.org/stable/c/5ff00408e5029d3550ee77f62dc15f1e15c47f87"
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},
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{
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"url": "https://git.kernel.org/stable/c/0a12db736edbb4933e4274932aeea594b5876fa4"
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},
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{
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"url": "https://git.kernel.org/stable/c/9d4fa5fe2b1d56662afd14915a73b4d0783ffa45"
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},
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{
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"url": "https://git.kernel.org/stable/c/5c0392fdafb0a2321311900be83ffa572bef8203"
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},
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{
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"url": "https://git.kernel.org/stable/c/77ab09b92f16c8439a948d1af489196953dc4a0e"
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},
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{
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"url": "https://git.kernel.org/stable/c/55a8210c9e7d21ff2644809699765796d4bfb200"
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}
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],
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"title": "apparmor: avoid crash when parsed profile name is empty",
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"x_generator": {
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"engine": "bippy-1.2.0"
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}
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},
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"adp": [
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{
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"metrics": [
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{
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"other": {
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"type": "ssvc",
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"content": {
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"id": "CVE-2023-52443",
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"role": "CISA Coordinator",
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"options": [
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{
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"Exploitation": "none"
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},
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{
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"Automatable": "no"
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},
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{
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"Technical Impact": "partial"
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}
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],
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"version": "2.0.3",
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"timestamp": "2024-02-22T18:29:41.510350Z"
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}
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}
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}
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],
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"title": "CISA ADP Vulnrichment",
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"providerMetadata": {
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"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
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"shortName": "CISA-ADP",
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"dateUpdated": "2024-07-05T17:21:01.497Z"
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}
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},
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{
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"providerMetadata": {
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"orgId": "af854a3a-2127-422b-91ae-364da2661108",
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"shortName": "CVE",
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"dateUpdated": "2024-08-02T22:55:41.517Z"
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},
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"title": "CVE Program Container",
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"references": [
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{
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"url": "https://git.kernel.org/stable/c/9286ee97aa4803d99185768735011d0d65827c9e",
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"tags": [
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"x_transferred"
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]
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},
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"url": "https://git.kernel.org/stable/c/1d8e62b5569cc1466ceb8a7e4872cf10160a9dcf",
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"tags": [
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"tags": [
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"tags": [
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},
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{
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"url": "https://lists.debian.org/debian-lts-announce/2024/06/msg00016.html",
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"tags": [
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]
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},
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{
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"url": "https://lists.debian.org/debian-lts-announce/2024/06/msg00020.html",
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"tags": [
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}
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]
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}
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]
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},
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"dataVersion": "5.2"
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} |