CVE-2025-52565 (GCVE-0-2025-52565)

Vulnerability from cvelistv5 – Published: 2025-11-06 20:02 – Updated: 2025-11-06 21:32
VLAI?
Summary
runc is a CLI tool for spawning and running containers according to the OCI specification. Versions 1.0.0-rc3 through 1.2.7, 1.3.0-rc.1 through 1.3.2, and 1.4.0-rc.1 through 1.4.0-rc.2, due to insufficient checks when bind-mounting `/dev/pts/$n` to `/dev/console` inside the container, an attacker can trick runc into bind-mounting paths which would normally be made read-only or be masked onto a path that the attacker can write to. This attack is very similar in concept and application to CVE-2025-31133, except that it attacks a similar vulnerability in a different target (namely, the bind-mount of `/dev/pts/$n` to `/dev/console` as configured for all containers that allocate a console). This happens after `pivot_root(2)`, so this cannot be used to write to host files directly -- however, as with CVE-2025-31133, this can load to denial of service of the host or a container breakout by providing the attacker with a writable copy of `/proc/sysrq-trigger` or `/proc/sys/kernel/core_pattern` (respectively). This issue is fixed in versions 1.2.8, 1.3.3 and 1.4.0-rc.3.
Severity ?
8.4 (High)
CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:N/VI:H/VA:N/SC:H/SI:H/SA:H
CWE
  • CWE-61 - UNIX Symbolic Link (Symlink) Following
  • CWE-363 - Race Condition Enabling Link Following
Assigner
References
Impacted products
Vendor Product Version
opencontainers runc Affected: >= 1.0.0-rc3, < 1.2.8
Affected: >= 1.3.0-rc.1, < 1.3.3
Affected: >= 1.4.0-rc.1, < 1.4.0-rc.3
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    "vulnrichment": {
      "containers": "{\"adp\": [{\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2025-52565\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"none\"}, {\"Automatable\": \"no\"}, {\"Technical Impact\": \"partial\"}], \"version\": \"2.0.3\", \"timestamp\": \"2025-11-06T21:32:07.457681Z\"}}}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2025-11-06T21:32:12.507Z\"}}], \"cna\": {\"title\": \"container escape due to /dev/console mount and related races\", \"source\": {\"advisory\": \"GHSA-qw9x-cqr3-wc7r\", \"discovery\": \"UNKNOWN\"}, \"metrics\": [{\"cvssV4_0\": {\"version\": \"4.0\", \"baseScore\": 8.4, \"attackVector\": \"LOCAL\", \"baseSeverity\": \"HIGH\", \"vectorString\": \"CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:N/VI:H/VA:N/SC:H/SI:H/SA:H\", \"userInteraction\": \"PASSIVE\", \"attackComplexity\": \"LOW\", \"attackRequirements\": \"NONE\", \"privilegesRequired\": \"NONE\", \"subIntegrityImpact\": \"HIGH\", \"vulnIntegrityImpact\": \"HIGH\", \"subAvailabilityImpact\": \"HIGH\", \"vulnAvailabilityImpact\": \"NONE\", \"subConfidentialityImpact\": \"HIGH\", \"vulnConfidentialityImpact\": \"NONE\"}}], \"affected\": [{\"vendor\": \"opencontainers\", \"product\": \"runc\", \"versions\": [{\"status\": \"affected\", \"version\": \"\u003e= 1.0.0-rc3, \u003c 1.2.8\"}, {\"status\": \"affected\", \"version\": \"\u003e= 1.3.0-rc.1, \u003c 1.3.3\"}, {\"status\": \"affected\", \"version\": \"\u003e= 1.4.0-rc.1, \u003c 1.4.0-rc.3\"}]}], \"references\": [{\"url\": \"https://github.com/opencontainers/runc/security/advisories/GHSA-qw9x-cqr3-wc7r\", \"name\": \"https://github.com/opencontainers/runc/security/advisories/GHSA-qw9x-cqr3-wc7r\", \"tags\": [\"x_refsource_CONFIRM\"]}, {\"url\": \"https://github.com/opencontainers/runc/commit/01de9d65dc72f67b256ef03f9bfb795a2bf143b4\", \"name\": \"https://github.com/opencontainers/runc/commit/01de9d65dc72f67b256ef03f9bfb795a2bf143b4\", \"tags\": [\"x_refsource_MISC\"]}, {\"url\": \"https://github.com/opencontainers/runc/commit/398955bccb7f20565c224a3064d331c19e422398\", \"name\": \"https://github.com/opencontainers/runc/commit/398955bccb7f20565c224a3064d331c19e422398\", \"tags\": [\"x_refsource_MISC\"]}, {\"url\": \"https://github.com/opencontainers/runc/commit/531ef794e4ecd628006a865ad334a048ee2b4b2e\", \"name\": \"https://github.com/opencontainers/runc/commit/531ef794e4ecd628006a865ad334a048ee2b4b2e\", \"tags\": [\"x_refsource_MISC\"]}, {\"url\": \"https://github.com/opencontainers/runc/commit/9be1dbf4ac67d9840a043ebd2df5c68f36705d1d\", \"name\": \"https://github.com/opencontainers/runc/commit/9be1dbf4ac67d9840a043ebd2df5c68f36705d1d\", \"tags\": [\"x_refsource_MISC\"]}, {\"url\": \"https://github.com/opencontainers/runc/commit/aee7d3fe355dd02939d44155e308ea0052e0d53a\", \"name\": \"https://github.com/opencontainers/runc/commit/aee7d3fe355dd02939d44155e308ea0052e0d53a\", \"tags\": [\"x_refsource_MISC\"]}, {\"url\": \"https://github.com/opencontainers/runc/commit/db19bbed5348847da433faa9d69e9f90192bfa64\", \"name\": \"https://github.com/opencontainers/runc/commit/db19bbed5348847da433faa9d69e9f90192bfa64\", \"tags\": [\"x_refsource_MISC\"]}, {\"url\": \"https://github.com/opencontainers/runc/commit/de87203e625cd7a27141fb5f2ad00a320c69c5e8\", \"name\": \"https://github.com/opencontainers/runc/commit/de87203e625cd7a27141fb5f2ad00a320c69c5e8\", \"tags\": [\"x_refsource_MISC\"]}, {\"url\": \"https://github.com/opencontainers/runc/commit/ff94f9991bd32076c871ef0ad8bc1b763458e480\", \"name\": \"https://github.com/opencontainers/runc/commit/ff94f9991bd32076c871ef0ad8bc1b763458e480\", \"tags\": [\"x_refsource_MISC\"]}], \"descriptions\": [{\"lang\": \"en\", \"value\": \"runc is a CLI tool for spawning and running containers according to the OCI specification. Versions 1.0.0-rc3 through 1.2.7, 1.3.0-rc.1 through 1.3.2, and 1.4.0-rc.1 through 1.4.0-rc.2, due to insufficient checks when bind-mounting `/dev/pts/$n` to `/dev/console` inside the container, an attacker can trick runc into bind-mounting paths which would normally be made read-only or be masked onto a path that the attacker can write to. This attack is very similar in concept and application to CVE-2025-31133, except that it attacks a similar vulnerability in a different target (namely, the bind-mount of `/dev/pts/$n` to `/dev/console` as configured for all containers that allocate a console). This happens after `pivot_root(2)`, so this cannot be used to write to host files directly -- however, as with CVE-2025-31133, this can load to denial of service of the host or a container breakout by providing the attacker with a writable copy of `/proc/sysrq-trigger` or `/proc/sys/kernel/core_pattern` (respectively). This issue is fixed in versions 1.2.8, 1.3.3 and 1.4.0-rc.3.\"}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"cweId\": \"CWE-61\", \"description\": \"CWE-61: UNIX Symbolic Link (Symlink) Following\"}]}, {\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"cweId\": \"CWE-363\", \"description\": \"CWE-363: Race Condition Enabling Link Following\"}]}], \"providerMetadata\": {\"orgId\": \"a0819718-46f1-4df5-94e2-005712e83aaa\", \"shortName\": \"GitHub_M\", \"dateUpdated\": \"2025-11-06T20:02:58.513Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2025-52565\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2025-11-06T21:32:19.129Z\", \"dateReserved\": \"2025-06-18T03:55:52.036Z\", \"assignerOrgId\": \"a0819718-46f1-4df5-94e2-005712e83aaa\", \"datePublished\": \"2025-11-06T20:02:58.513Z\", \"assignerShortName\": \"GitHub_M\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}


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Sightings

Author Source Type Date

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



Detection rules are retrieved from Rulezet.