528 lines
25 KiB
JSON
528 lines
25 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-2026-43028",
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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": "2026-05-01T14:12:55.976Z",
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"datePublished": "2026-05-01T14:15:29.192Z",
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"dateUpdated": "2026-11-10T12:46:11.203Z"
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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": "2026-08-05T12:25:21.789Z"
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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\nnetfilter: x_tables: ensure names are nul-terminated\n\nReject names that lack a \\0 character before feeding them\nto functions that expect c-strings.\n\nFixes tag is the most recent commit that needs this change."
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}
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],
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"metrics": [
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{
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"cvssV3_1": {
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"version": "3.1",
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"vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H",
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"baseScore": 7.1,
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"baseSeverity": "HIGH"
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},
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"scenarios": [
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{
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"lang": "en",
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"value": "AV:L - The vulnerable x_tables match validation is reached by local rule creation paths such as iptables setsockopt table replacement or nft_compat netlink rule creation, not by received network packets.\nAC:L - A local attacker can deterministically submit a crafted match blob with a non-NUL-terminated cgroup path or rateest name; no race or victim state is required.\nPR:L - The path requires CAP_NET_ADMIN in the target network namespace, but netfilter administration is reachable by an unprivileged user through user and network namespaces on systems allowing unprivileged user namespaces.\nUI:N - After obtaining the local namespace privileges, the attacker directly invokes the rule insertion path without any victim action.\nS:U - The issue affects kernel netfilter processing within the same host kernel security authority and does not cross a VM, hypervisor, or separate security scope boundary.\nC:H - The bug feeds attacker-controlled fixed-size fields lacking a NUL terminator into C-string consumers, and affected kernels can read past the intended match field into adjacent kernel memory until a NUL is found. Because this out-of-bounds read is not strictly bounded to only a few bytes across affected versions, confidentiality is scored High.\nI:N - The investigated paths show an out-of-bounds read/string validation failure during rule validation, with no write primitive or control-flow modification identified.\nA:H - The unterminated C-string scan can run beyond the allocated rule data and fault or oops the kernel, producing a local denial of service that can be triggered repeatedly."
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}
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]
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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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"net/netfilter/xt_cgroup.c",
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"net/netfilter/xt_rateest.c"
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],
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"versions": [
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{
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"version": "c38c4597e4bf3e99860eac98211748e1ecb0e139",
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"lessThan": "bcac50ea0a29d430eedc5ac87b215393b567baa9",
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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": "c38c4597e4bf3e99860eac98211748e1ecb0e139",
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"lessThan": "ea01c1b219f5a11c66918abaa6f052e5a74041d6",
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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": "c38c4597e4bf3e99860eac98211748e1ecb0e139",
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"lessThan": "aa6cd4a8863391e0a64f62d8922cb0af732a2cf2",
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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": "c38c4597e4bf3e99860eac98211748e1ecb0e139",
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"lessThan": "c2d4a3abb15ca14716c6d8b9ffcbcd7c63626af4",
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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": "c38c4597e4bf3e99860eac98211748e1ecb0e139",
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"lessThan": "673bbd36cba21d10a10f0932f479df7468e26fbb",
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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": "c38c4597e4bf3e99860eac98211748e1ecb0e139",
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"lessThan": "f419bdc205894750f4d3ec042bc87a1b9cde1351",
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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": "c38c4597e4bf3e99860eac98211748e1ecb0e139",
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"lessThan": "73124608172890306b85f2206d8b3cac20e324f1",
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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": "c38c4597e4bf3e99860eac98211748e1ecb0e139",
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"lessThan": "a958a4f90ddd7de0800b33ca9d7b886b7d40f74e",
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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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"net/netfilter/xt_cgroup.c",
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"net/netfilter/xt_rateest.c"
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],
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"versions": [
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{
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"version": "4.5",
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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": "4.5",
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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": "5.10.253",
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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": "5.15.203",
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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": "6.1.168",
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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": "6.6.134",
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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": "6.12.81",
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"lessThanOrEqual": "6.12.*",
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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": "6.18.22",
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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": "6.19.12",
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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": "4.5",
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"versionEndExcluding": "5.10.253"
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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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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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},
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"url": "https://git.kernel.org/stable/c/ea01c1b219f5a11c66918abaa6f052e5a74041d6"
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},
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{
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"url": "https://git.kernel.org/stable/c/aa6cd4a8863391e0a64f62d8922cb0af732a2cf2"
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},
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{
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"url": "https://git.kernel.org/stable/c/c2d4a3abb15ca14716c6d8b9ffcbcd7c63626af4"
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},
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{
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"url": "https://git.kernel.org/stable/c/673bbd36cba21d10a10f0932f479df7468e26fbb"
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},
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{
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"url": "https://git.kernel.org/stable/c/f419bdc205894750f4d3ec042bc87a1b9cde1351"
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{
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"url": "https://git.kernel.org/stable/c/73124608172890306b85f2206d8b3cac20e324f1"
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},
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{
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"url": "https://git.kernel.org/stable/c/a958a4f90ddd7de0800b33ca9d7b886b7d40f74e"
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}
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],
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"title": "netfilter: x_tables: ensure names are nul-terminated",
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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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"x_adpType": "supplier",
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"providerMetadata": {
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"orgId": "0b142b55-0307-4c5a-b3c9-f314f3fb7c5e",
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"shortName": "siemens-SADP",
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"dateUpdated": "2026-11-10T12:46:11.203Z"
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},
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"affected": [
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{
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"vendor": "Siemens",
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"product": "SIMATIC S7-1500 CPU 1518-4 PN/DP MFP (6ES7518-4AX00-1AB0)",
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"versions": [
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{
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"status": "affected",
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"version": "V3.1.6",
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"lessThan": "*",
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"versionType": "custom"
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}
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],
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"defaultStatus": "unknown"
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},
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{
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"vendor": "Siemens",
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"product": "SIMATIC S7-1500 CPU 1518-4 PN/DP MFP (6ES7518-4AX00-1AB0)",
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"versions": [
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{
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"status": "affected",
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"version": "V3.1.5",
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"lessThan": "*",
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"versionType": "custom"
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}
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],
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"defaultStatus": "unknown"
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},
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{
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"vendor": "Siemens",
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"versions": [
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{
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"status": "affected",
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"version": "V3.1.7",
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"lessThan": "*",
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"versionType": "custom"
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}
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"defaultStatus": "unknown"
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{
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"vendor": "Siemens",
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"versions": [
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{
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"status": "affected",
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"lessThan": "*",
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"versionType": "custom"
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}
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"versions": [
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{
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"status": "affected",
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"versions": [
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"lessThan": "*",
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"versions": [
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{
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"version": "V3.1.5",
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"lessThan": "*",
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"versionType": "custom"
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}
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],
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},
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{
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"versions": [
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{
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"lessThan": "*",
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"versionType": "custom"
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{
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"versions": [
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{
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"status": "affected",
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"versions": [
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"status": "affected",
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"defaultStatus": "unknown"
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"product": "SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP (6ES7518-4FX00-1AC0)",
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"versions": [
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{
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"status": "affected",
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"lessThan": "*",
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"versions": [
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},
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{
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},
|
|
{
|
|
"url": "https://cert-portal.siemens.com/productcert/html/ssa-457936.html"
|
|
}
|
|
]
|
|
},
|
|
{
|
|
"metrics": [
|
|
{
|
|
"other": {
|
|
"type": "ssvc",
|
|
"content": {
|
|
"id": "CVE-2026-43028",
|
|
"role": "CISA Coordinator",
|
|
"options": [
|
|
{
|
|
"Exploitation": "none"
|
|
},
|
|
{
|
|
"Automatable": "no"
|
|
},
|
|
{
|
|
"Technical Impact": "partial"
|
|
}
|
|
],
|
|
"version": "2.0.3",
|
|
"timestamp": "2026-10-16T15:13:40.652686Z"
|
|
}
|
|
}
|
|
}
|
|
],
|
|
"problemTypes": [
|
|
{
|
|
"descriptions": [
|
|
{
|
|
"lang": "en",
|
|
"type": "CWE",
|
|
"cweId": "CWE-170",
|
|
"description": "CWE-170 Improper Null Termination"
|
|
}
|
|
]
|
|
}
|
|
],
|
|
"title": "CISA ADP Vulnrichment",
|
|
"providerMetadata": {
|
|
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
|
|
"shortName": "CISA-ADP",
|
|
"dateUpdated": "2026-10-19T19:06:10.219Z"
|
|
}
|
|
}
|
|
]
|
|
}
|
|
} |