CVE-2024-21626
In runc 1.1.11 and earlier, due to an internal file descriptor leak, an attacker could cause a newly-spawned container process (from runc exec) to have a working directory in the host filesystem namespace, allowing for a container escape by giving…
Does this matter?
EPSS puts the probability of exploitation in the next 30 days at 18.1%, higher than 97% of all known CVEs. Patch or mitigate before the next change window.
Description
runc is a CLI tool for spawning and running containers on Linux according to the OCI specification. In runc 1.1.11 and earlier, due to an internal file descriptor leak, an attacker could cause a newly-spawned container process (from runc exec) to have a working directory in the host filesystem namespace, allowing for a container escape by giving access to the host filesystem ("attack 2"). The same attack could be used by a malicious image to allow a container process to gain access to the host filesystem through runc run ("attack 1"). Variants of attacks 1 and 2 could be also be used to overwrite semi-arbitrary host binaries, allowing for complete container escapes ("attack 3a" and "attack 3b"). runc 1.1.12 includes patches for this issue.
- CVSS 3.1
- 8.6 HIGHCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H
- EPSS
- 18.09% probability · 97th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-403, CWE-668, CWE-200
- Affected
- linuxfoundation/runc · fedoraproject/fedora
- Source
- security-advisories@github.com
References
- http://packetstormsecurity.com/files/176993/runc-1.1.11-File-Descriptor-Leak-Privilege-Escalation.htmlExploit, Third Party Advisory, VDB Entry
- http://www.openwall.com/lists/oss-security/2024/02/01/1Mailing List
- http://www.openwall.com/lists/oss-security/2024/02/02/3Mailing List
- https://github.com/opencontainers/runc/commit/02120488a4c0fc487d1ed2867e901eeed7ce8ecfPatch
- https://github.com/opencontainers/runc/releases/tag/v1.1.12Release Notes
- https://github.com/opencontainers/runc/security/advisories/GHSA-xr7r-f8xq-vfvvExploit, Vendor Advisory
- https://lists.debian.org/debian-lts-announce/2024/02/msg00005.html
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/2NLXNE23Q5ESQUAI22Z7A63JX2WMPJ2J/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/SYMO3BANINS6RGFQFKPRG4FIOJ7GWYTL/Mailing List
- http://packetstormsecurity.com/files/176993/runc-1.1.11-File-Descriptor-Leak-Privilege-Escalation.htmlExploit, Third Party Advisory, VDB Entry
- http://www.openwall.com/lists/oss-security/2024/02/01/1Mailing List
- http://www.openwall.com/lists/oss-security/2024/02/02/3Mailing List
- https://github.com/opencontainers/runc/commit/02120488a4c0fc487d1ed2867e901eeed7ce8ecfPatch
- https://github.com/opencontainers/runc/releases/tag/v1.1.12Release Notes
- https://github.com/opencontainers/runc/security/advisories/GHSA-xr7r-f8xq-vfvvExploit, Vendor Advisory
- https://lists.debian.org/debian-lts-announce/2024/02/msg00005.html
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/2NLXNE23Q5ESQUAI22Z7A63JX2WMPJ2J/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/SYMO3BANINS6RGFQFKPRG4FIOJ7GWYTL/Mailing List
- https://www.vicarius.io/vsociety/posts/leaky-vessels-part-1-cve-2024-21626
- https://access.redhat.com/errata/RHSA-2024:0645
- https://access.redhat.com/errata/RHSA-2024:0662
- https://access.redhat.com/errata/RHSA-2024:0666
- https://access.redhat.com/errata/RHSA-2024:0670
- https://access.redhat.com/errata/RHSA-2024:0684
- https://access.redhat.com/errata/RHSA-2024:0717
- https://access.redhat.com/errata/RHSA-2024:0748
- https://access.redhat.com/errata/RHSA-2024:0752
- https://access.redhat.com/errata/RHSA-2024:0755
- https://access.redhat.com/errata/RHSA-2024:0756
- https://access.redhat.com/errata/RHSA-2024:0757
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.