CVE-2024-21626

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.
References
Link Resource
http://packetstormsecurity.com/files/176993/runc-1.1.11-File-Descriptor-Leak-Privilege-Escalation.html Exploit Third Party Advisory VDB Entry
http://www.openwall.com/lists/oss-security/2024/02/01/1 Mailing List
http://www.openwall.com/lists/oss-security/2024/02/02/3 Mailing List
https://github.com/opencontainers/runc/commit/02120488a4c0fc487d1ed2867e901eeed7ce8ecf Patch
https://github.com/opencontainers/runc/releases/tag/v1.1.12 Release Notes
https://github.com/opencontainers/runc/security/advisories/GHSA-xr7r-f8xq-vfvv Exploit 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.html Exploit Third Party Advisory VDB Entry
http://www.openwall.com/lists/oss-security/2024/02/01/1 Mailing List
http://www.openwall.com/lists/oss-security/2024/02/02/3 Mailing List
https://github.com/opencontainers/runc/commit/02120488a4c0fc487d1ed2867e901eeed7ce8ecf Patch
https://github.com/opencontainers/runc/releases/tag/v1.1.12 Release Notes
https://github.com/opencontainers/runc/security/advisories/GHSA-xr7r-f8xq-vfvv Exploit 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
https://access.redhat.com/errata/RHSA-2024:0758
https://access.redhat.com/errata/RHSA-2024:0759
https://access.redhat.com/errata/RHSA-2024:0760
https://access.redhat.com/errata/RHSA-2024:0764
https://access.redhat.com/errata/RHSA-2024:10149
https://access.redhat.com/errata/RHSA-2024:10520
https://access.redhat.com/errata/RHSA-2024:10525
https://access.redhat.com/errata/RHSA-2024:10841
https://access.redhat.com/errata/RHSA-2024:1270
https://access.redhat.com/errata/RHSA-2024:4597
https://access.redhat.com/errata/RHSA-2025:0115
https://access.redhat.com/errata/RHSA-2025:0650
https://access.redhat.com/errata/RHSA-2025:1711
https://access.redhat.com/errata/RHSA-2025:2441
https://access.redhat.com/errata/RHSA-2025:2701
https://access.redhat.com/errata/RHSA-2025:2710
https://access.redhat.com/security/cve/CVE-2024-21626
https://bugzilla.redhat.com/show_bug.cgi?id=2258725
https://security.access.redhat.com/data/csaf/v2/vex/2024/cve-2024-21626.json
Configurations

Configuration 1 (hide)

cpe:2.3:a:linuxfoundation:runc:*:*:*:*:*:*:*:*

Configuration 2 (hide)

cpe:2.3:o:fedoraproject:fedora:39:*:*:*:*:*:*:*

History

No history.

Information

Published : 2024-01-31 22:15

Updated : 2026-08-24 13:16


NVD link : CVE-2024-21626

Mitre link : CVE-2024-21626

CVE.ORG link : CVE-2024-21626


JSON object : View

Products Affected

linuxfoundation

  • runc

fedoraproject

  • fedora
CWE
CWE-403

Exposure of File Descriptor to Unintended Control Sphere ('File Descriptor Leak')

CWE-668

Exposure of Resource to Wrong Sphere

CWE-200

Exposure of Sensitive Information to an Unauthorized Actor