133 lines
5.8 KiB
JSON
133 lines
5.8 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-2026-41579",
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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": "2026-04-21T14:15:21.958Z",
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"datePublished": "2026-07-01T00:02:08.639Z",
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"dateUpdated": "2026-07-01T13:35:41.354Z"
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},
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"containers": {
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"cna": {
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"title": "runc: Malicious image with /dev symlink can trigger limited host filesystem integrity violations",
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"problemTypes": [
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{
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"descriptions": [
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{
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"cweId": "CWE-61",
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"lang": "en",
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"description": "CWE-61: UNIX Symbolic Link (Symlink) Following",
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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": "LOW",
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"attackVector": "LOCAL",
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"availabilityImpact": "NONE",
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"baseScore": 3.3,
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"baseSeverity": "LOW",
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"confidentialityImpact": "NONE",
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"integrityImpact": "LOW",
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"privilegesRequired": "NONE",
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"scope": "UNCHANGED",
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"userInteraction": "REQUIRED",
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"vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N",
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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/opencontainers/runc/security/advisories/GHSA-xjvp-4fhw-gc47",
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"tags": [
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"x_refsource_CONFIRM"
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],
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"url": "https://github.com/opencontainers/runc/security/advisories/GHSA-xjvp-4fhw-gc47"
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},
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{
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"name": "https://github.com/opencontainers/runc/commit/864db8042dbb",
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"tags": [
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"x_refsource_MISC"
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],
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"url": "https://github.com/opencontainers/runc/commit/864db8042dbb"
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}
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],
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"affected": [
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{
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"vendor": "opencontainers",
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"product": "runc",
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"versions": [
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{
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"version": "< 1.3.6",
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"status": "affected"
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},
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{
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"version": ">= 1.4.0-rc.1, < 1.4.3",
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"status": "affected"
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},
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{
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"version": ">= 1.5.0-rc.1, < 1.5.0-rc.3",
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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": "2026-07-01T00:02:08.639Z"
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},
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"descriptions": [
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{
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"lang": "en",
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"value": "runc is a CLI tool for spawning and running containers according to the OCI specification. In versions prior to 1.3.6, 1.4.0-rc.1, 1.4.0-rc.12, 1.5.0-rc.1, and 1.5.0-rc.1, when setting up the container rootfs, setupPtmx and setupDevSymlinks call os.Remove and os.Symlink with a filepath.Join string which allow an image with /dev as a symlink to trick runc into deleting files called ptmx on the host or creating a hardcoded set of symlinks with specific names and targets in an arbitrary pre-existing host directory. This issue is not exploitable under Docker, because Docker creates a top-level read-only layer that masks any malicious /dev symlink present in the container image — unlike some other Linux container tooling, whose higher-level runtimes built on runc remain exposed to exploitation via a malicious image. This issue has been fixed in versions 1.3.6, 1.4.3 and 1.5.0."
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}
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],
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"source": {
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"advisory": "GHSA-xjvp-4fhw-gc47",
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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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"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": "2026-07-01T13:34:05.348945Z",
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"id": "CVE-2026-41579",
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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": "no"
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},
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{
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"Technical Impact": "partial"
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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": "2026-07-01T13:35:41.354Z"
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}
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}
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]
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}
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} |