143 lines
6.8 KiB
JSON
143 lines
6.8 KiB
JSON
{
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"dataType": "CVE_RECORD",
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"dataVersion": "5.2",
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"cveMetadata": {
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"cveId": "CVE-2026-45966",
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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": "2026-05-13T15:03:33.089Z",
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"datePublished": "2026-05-27T12:18:24.300Z",
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"dateUpdated": "2026-05-27T12:18:24.300Z"
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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": "2026-05-27T12:18:24.300Z"
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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: fix NULL pointer dereference in __unix_needs_revalidation\n\nWhen receiving file descriptors via SCM_RIGHTS, both the socket pointer\nand the socket's sk pointer can be NULL during socket setup or teardown,\ncausing NULL pointer dereferences in __unix_needs_revalidation().\n\nThis is a regression in AppArmor 5.0.0 (kernel 6.17+) where the new\n__unix_needs_revalidation() function was added without proper NULL checks.\n\nThe crash manifests as:\n BUG: kernel NULL pointer dereference, address: 0x0000000000000018\n RIP: aa_file_perm+0xb7/0x3b0 (or +0xbe/0x3b0, +0xc0/0x3e0)\n Call Trace:\n apparmor_file_receive+0x42/0x80\n security_file_receive+0x2e/0x50\n receive_fd+0x1d/0xf0\n scm_detach_fds+0xad/0x1c0\n\nThe function dereferences sock->sk->sk_family without checking if either\nsock or sock->sk is NULL first.\n\nAdd NULL checks for both sock and sock->sk before accessing sk_family."
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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/file.c"
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],
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"versions": [
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{
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"version": "88fec3526e84123997ecebd6bb6778eb4ce779b7",
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"lessThan": "fea017a7f6abe179decf575a2d8464c74edb3964",
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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": "88fec3526e84123997ecebd6bb6778eb4ce779b7",
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"lessThan": "e85bc9101afc4202aa2269967ce9d3ffbecd0994",
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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": "88fec3526e84123997ecebd6bb6778eb4ce779b7",
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"lessThan": "e2938ad00b21340c0362562dfedd7cfec0554d67",
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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/file.c"
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],
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"versions": [
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{
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"version": "6.17",
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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": "6.17",
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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": "6.18.14",
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"lessThanOrEqual": "6.18.*",
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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": "6.19.4",
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"lessThanOrEqual": "6.19.*",
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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": "7.0",
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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": "6.17",
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"versionEndExcluding": "6.18.14"
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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": "6.17",
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"versionEndExcluding": "6.19.4"
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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": "6.17",
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"versionEndExcluding": "7.0"
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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/fea017a7f6abe179decf575a2d8464c74edb3964"
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},
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{
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"url": "https://git.kernel.org/stable/c/e85bc9101afc4202aa2269967ce9d3ffbecd0994"
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},
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{
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"url": "https://git.kernel.org/stable/c/e2938ad00b21340c0362562dfedd7cfec0554d67"
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}
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],
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"title": "apparmor: fix NULL pointer dereference in __unix_needs_revalidation",
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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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}
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} |