172 lines
7.4 KiB
JSON
172 lines
7.4 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-2026-53612",
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"assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
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"state": "PUBLISHED",
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"assignerShortName": "GitHub_M",
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"dateReserved": "2026-06-09T19:39:52.405Z",
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"datePublished": "2026-10-14T14:47:25.523Z",
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"dateUpdated": "2026-10-14T18:26:36.386Z"
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},
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"containers": {
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"cna": {
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"title": "util-linux mount hook_owner TOCTOU allows local privilege escalation",
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"problemTypes": [
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{
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"descriptions": [
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{
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"cweId": "CWE-367",
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"lang": "en",
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"description": "CWE-367: Time-of-check Time-of-use (TOCTOU) Race Condition",
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"type": "CWE"
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}
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]
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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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"attackComplexity": "HIGH",
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"attackVector": "LOCAL",
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"availabilityImpact": "HIGH",
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"baseScore": 7,
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"baseSeverity": "HIGH",
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"confidentialityImpact": "HIGH",
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"integrityImpact": "HIGH",
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"privilegesRequired": "LOW",
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"scope": "UNCHANGED",
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"userInteraction": "NONE",
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"vectorString": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H",
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"version": "3.1"
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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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"name": "https://github.com/util-linux/util-linux/security/advisories/GHSA-g8wm-75wr-g2vh",
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"tags": [
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"x_refsource_CONFIRM"
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],
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"url": "https://github.com/util-linux/util-linux/security/advisories/GHSA-g8wm-75wr-g2vh"
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},
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{
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"name": "https://github.com/util-linux/util-linux/commit/24da33905c7115c4cbccd0afb2a469804e96467a",
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"tags": [
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"x_refsource_MISC"
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],
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"url": "https://github.com/util-linux/util-linux/commit/24da33905c7115c4cbccd0afb2a469804e96467a"
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},
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{
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"name": "https://github.com/util-linux/util-linux/commit/722c96974dd4009a334e4aee556eedaab5fb94b4",
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"tags": [
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"x_refsource_MISC"
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],
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"url": "https://github.com/util-linux/util-linux/commit/722c96974dd4009a334e4aee556eedaab5fb94b4"
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},
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{
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"name": "https://github.com/util-linux/util-linux/commit/897a08c2b11dfa66975c3d24d63c7bf5f5be1a7c",
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"tags": [
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"x_refsource_MISC"
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],
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"url": "https://github.com/util-linux/util-linux/commit/897a08c2b11dfa66975c3d24d63c7bf5f5be1a7c"
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},
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{
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"name": "https://github.com/util-linux/util-linux/commit/d0c5adaeb3a3d823aba1377794de8f009b8152cc",
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"tags": [
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"x_refsource_MISC"
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],
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"url": "https://github.com/util-linux/util-linux/commit/d0c5adaeb3a3d823aba1377794de8f009b8152cc"
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},
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{
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"name": "https://github.com/util-linux/util-linux/releases/tag/v2.41.5",
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"tags": [
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"x_refsource_MISC"
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],
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"url": "https://github.com/util-linux/util-linux/releases/tag/v2.41.5"
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},
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{
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"name": "https://github.com/util-linux/util-linux/releases/tag/v2.42.2",
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"tags": [
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"x_refsource_MISC"
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],
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"url": "https://github.com/util-linux/util-linux/releases/tag/v2.42.2"
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}
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],
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"affected": [
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{
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"vendor": "util-linux",
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"product": "util-linux",
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"versions": [
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{
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"version": ">= 2.39, < 2.41.5",
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"status": "affected"
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},
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{
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"version": ">= 2.42, < 2.42.2",
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"status": "affected"
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}
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]
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}
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],
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"providerMetadata": {
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"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
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"shortName": "GitHub_M",
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"dateUpdated": "2026-10-14T14:47:25.523Z"
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},
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"descriptions": [
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{
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"lang": "en",
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"value": "util-linux is a random collection of Linux utilities. In util-linux 2.39 through 2.41.4 and 2.42 through 2.42.1, the SUID `mount` utility's `hook_owner.c` post-mount hook performs path-based `chmod()` and `lchown()` operations on a previously validated mount target. A local low-privileged user authorized by an `/etc/fstab` entry with `user` or `users` and an `X-mount.mode`, `X-mount.owner`, or `X-mount.group` option can use `renameat2(RENAME_EXCHANGE)` to race a writable ancestor of the target and redirect the privileged ownership or mode change to a root-owned path, potentially gaining root privileges. This issue is fixed in 2.41.5 and 2.42.2."
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}
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],
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"source": {
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"advisory": "GHSA-g8wm-75wr-g2vh",
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"discovery": "UNKNOWN"
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}
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},
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"adp": [
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{
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"references": [
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{
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"url": "https://github.com/util-linux/util-linux/security/advisories/GHSA-g8wm-75wr-g2vh",
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"tags": [
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"exploit"
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]
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}
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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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"timestamp": "2026-10-14T18:24:31.298549Z",
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"id": "CVE-2026-53612",
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"options": [
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{
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"Exploitation": "poc"
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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": "total"
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}
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],
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"role": "CISA Coordinator",
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"version": "2.0.3"
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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": "2026-10-14T18:26:36.386Z"
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}
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}
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]
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}
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} |