159 lines
8.3 KiB
JSON
159 lines
8.3 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-2026-52932",
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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": "2026-06-09T07:44:35.369Z",
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"datePublished": "2026-06-24T07:14:24.002Z",
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"dateUpdated": "2026-08-05T12:31:50.048Z"
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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": "2026-08-05T12:31:50.048Z"
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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\nxfrm: ipcomp: Free destination pages on acomp errors\n\nMove the out_free_req label up by a couple of lines so that the\nallocated dst SG list gets freed on error as well as success."
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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:N/I:N/A:H",
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"baseScore": 7.5,
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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:N - Inbound IPComp packets are handled by the IPv4/IPv6 protocol handlers and dispatched through xfrm_input() to ipcomp_input() when they match an installed IPComp SA. A remote peer can send malformed IPComp payloads to a reasonably deployed IPsec/IPComp endpoint.\nAC:L - The attacker only needs to send packets with invalid or oversized compressed data that make crypto_acomp_decompress() return an error after destination pages are allocated. There is no race or memory-layout prerequisite beyond reaching a configured IPComp SA.\nPR:N - On the remote receive path, no local privileges or authenticated user account are required; packets are processed before any per-user credential check. SA configuration is a deployment precondition, not an attacker privilege.\nUI:N - No victim user action is required after the target is running with an inbound IPComp SA. The attacker can repeatedly trigger the error path by sending network packets.\nS:U - The vulnerability consumes kernel memory within the same operating-system security authority. It does not cross a VM, hypervisor, IOMMU, or separate security-scope boundary.\nC:N - The bug leaks caller-allocated destination pages on the error path but does not expose their contents to the attacker. No arbitrary read or information disclosure primitive was found.\nI:N - The missed cleanup is a memory/resource leak, not a use-after-free, out-of-bounds write, or control-flow corruption. It does not provide a data modification primitive.\nA:H - Each failed IPComp decompression can leak multiple kernel pages, and a remote attacker can repeat this to exhaust kernel memory and cause system-wide denial of service. Under the required higher-severity rule, this is scored as high availability impact."
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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/xfrm/xfrm_ipcomp.c"
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],
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"versions": [
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{
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"version": "eb2953d26971f3083bbf95de4bc997b5bedf0b6e",
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"lessThan": "dc6dcba80d72a27ab61831ad3d253316e0c9b9d5",
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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": "eb2953d26971f3083bbf95de4bc997b5bedf0b6e",
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"lessThan": "b30aa173c3809f6af4c83a86099be1be19aa48eb",
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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": "eb2953d26971f3083bbf95de4bc997b5bedf0b6e",
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"lessThan": "7dbac7680eb629b3b4dc7e98c34f943b8814c0c8",
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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/xfrm/xfrm_ipcomp.c"
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],
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"versions": [
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{
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"version": "6.15",
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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": "6.15",
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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": "6.18.35",
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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": "7.0.12",
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"lessThanOrEqual": "7.0.*",
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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",
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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": "6.15",
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"versionEndExcluding": "6.18.35"
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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": "6.15",
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"versionEndExcluding": "7.0.12"
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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": "6.15",
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"versionEndExcluding": "7.1"
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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/dc6dcba80d72a27ab61831ad3d253316e0c9b9d5"
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},
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{
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"url": "https://git.kernel.org/stable/c/b30aa173c3809f6af4c83a86099be1be19aa48eb"
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},
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{
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"url": "https://git.kernel.org/stable/c/7dbac7680eb629b3b4dc7e98c34f943b8814c0c8"
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}
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],
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"title": "xfrm: ipcomp: Free destination pages on acomp errors",
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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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} |