298 lines
15 KiB
JSON
298 lines
15 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-2026-72319",
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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": "2026-08-09T03:40:39.919Z",
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"datePublished": "2026-08-15T05:55:32.313Z",
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"dateUpdated": "2026-10-16T18:55:17.469Z"
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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": "2026-08-17T05:42:45.694Z"
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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\nipvs: ensure inner headers in ICMP errors are in headroom\n\nSashiko points out that after stripping the outer headers\nwith pskb_pull() we should ensure the inner IP headers\nin ICMP errors from tunnels are present in the skb headroom\nfor functions like ipv4_update_pmtu(), icmp_send() and\nIP_VS_DBG().\n\nAlso, add more checks for the length of the inner headers."
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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:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
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"baseScore": 9.8,
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"baseSeverity": "CRITICAL"
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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:N - Crafted IPv4 ICMP error packets reach ip_vs_in_icmp() through IPVS netfilter LOCAL_IN and FORWARD hooks on internet-facing load balancers and Kubernetes kube-proxy IPVS nodes; remote senders trigger the tunnel PMTUD handler without local access.\nAC:L - An attacker controls ICMP nesting, IPIP/UDP/GRE encapsulation, skb fragmentation/non-linear layout, and can establish matching IPVS TUN connections through the VIP; no race or condition outside attacker control is required once IPVS tunnel mode is deployed.\nPR:N - IPVS configuration is an administrator deployment prerequisite; a remote attacker sending ICMP errors to an already-configured load balancer needs no credentials or host capabilities on the victim.\nUI:N - Exploitation is driven entirely by network packets processed automatically in softirq; no victim user action beyond normal traffic through the load balancer is required.\nS:U - Out-of-bounds kernel skb header access and route PMTU corruption remain within the host kernel authority; this is standard kernel compromise, not VM escape or sandbox crossing.\nC:H - After pskb_pull() without pskb_may_pull(), ipv4_update_pmtu() and ip_hdr() dereference skb->data that may lie past skb_tail_pointer or hold non-linear fragment data, constituting an out-of-bounds kernel read per CNA guidance.\nI:H - Mis-parsed inner IP header fields from unchecked skb->data drive ipv4_update_pmtu() route lookups and FNHE/PMTU updates with attacker-influenced saddr/daddr values, enabling unauthorized modification of kernel routing state.\nA:H - Out-of-bounds header access in the IPVS ICMP tunnel path can trigger kernel oops or panic, and a remote attacker can repeatedly send crafted ICMP errors to deny service on IPVS TUN load balancers."
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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/ipvs/ip_vs_core.c"
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],
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"versions": [
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{
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"version": "f2edb9f7706dcb2c0d9a362b2ba849efe3a97f5e",
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"lessThan": "19657b3a17b774ae4e2f2635b5ae8638c9344a40",
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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": "f2edb9f7706dcb2c0d9a362b2ba849efe3a97f5e",
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"lessThan": "dac813101914c21219ac221a60a31a11bc90e7ec",
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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": "f2edb9f7706dcb2c0d9a362b2ba849efe3a97f5e",
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"lessThan": "dd22f74a09e25ca298ced0a3763ef353242cb78d",
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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": "f2edb9f7706dcb2c0d9a362b2ba849efe3a97f5e",
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"lessThan": "9bc9b95aee2b2e3f1301a16a67ee504960402875",
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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": "f2edb9f7706dcb2c0d9a362b2ba849efe3a97f5e",
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"lessThan": "a735f9964a3d9ed97daf9b08507f8b5bcafe6326",
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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": "f2edb9f7706dcb2c0d9a362b2ba849efe3a97f5e",
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"lessThan": "8f48cfe657409fb5c7ba0521b14da6d47546d9cf",
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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": "f2edb9f7706dcb2c0d9a362b2ba849efe3a97f5e",
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"lessThan": "92185d6f7819bc558939ae83de7b1abe90e3b5c2",
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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": "f2edb9f7706dcb2c0d9a362b2ba849efe3a97f5e",
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"lessThan": "3f7a535ff0fa627a0132803e4c2f903ceffcbc1c",
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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/ipvs/ip_vs_core.c"
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],
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"versions": [
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{
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"version": "3.7",
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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": "3.7",
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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": "5.10.261",
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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": "5.15.212",
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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": "6.1.178",
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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": "6.6.145",
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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": "6.12.97",
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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": "6.18.40",
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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": "7.1.5",
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"lessThanOrEqual": "7.1.*",
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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": "7.2",
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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": "3.7",
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"versionEndExcluding": "5.10.261"
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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": "3.7",
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"versionEndExcluding": "5.15.212"
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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": "3.7",
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"versionEndExcluding": "6.1.178"
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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": "3.7",
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"versionEndExcluding": "6.6.145"
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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": "3.7",
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"versionEndExcluding": "6.12.97"
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},
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{
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "3.7",
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"versionEndExcluding": "6.18.40"
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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": "3.7",
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"versionEndExcluding": "7.1.5"
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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": "3.7",
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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/19657b3a17b774ae4e2f2635b5ae8638c9344a40"
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},
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{
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"url": "https://git.kernel.org/stable/c/dac813101914c21219ac221a60a31a11bc90e7ec"
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},
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{
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"url": "https://git.kernel.org/stable/c/dd22f74a09e25ca298ced0a3763ef353242cb78d"
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},
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{
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"url": "https://git.kernel.org/stable/c/9bc9b95aee2b2e3f1301a16a67ee504960402875"
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},
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{
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"url": "https://git.kernel.org/stable/c/a735f9964a3d9ed97daf9b08507f8b5bcafe6326"
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},
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{
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"url": "https://git.kernel.org/stable/c/8f48cfe657409fb5c7ba0521b14da6d47546d9cf"
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},
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{
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"url": "https://git.kernel.org/stable/c/92185d6f7819bc558939ae83de7b1abe90e3b5c2"
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},
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{
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"url": "https://git.kernel.org/stable/c/3f7a535ff0fa627a0132803e4c2f903ceffcbc1c"
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}
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],
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"title": "ipvs: ensure inner headers in ICMP errors are in headroom",
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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-2026-72319",
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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": "yes"
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},
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{
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"Technical Impact": "total"
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}
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],
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"version": "2.0.3",
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"timestamp": "2026-10-16T18:46:50.262793Z"
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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": "2026-10-16T18:55:17.469Z"
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}
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}
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]
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}
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} |