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Red Hat OpenShift: CVE-2024-21626: runc: file descriptor leak

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Red Hat OpenShift: CVE-2024-21626: runc: file descriptor leak

Severity
7
CVSS
(AV:L/AC:M/Au:N/C:C/I:C/A:C)
Published
01/31/2024
Created
02/10/2024
Added
02/09/2024
Modified
01/30/2025

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.

Solution(s)

  • linuxrpm-upgrade-microshift
  • linuxrpm-upgrade-runc

References

  • https://attackerkb.com/topics/cve-2024-21626
  • CVE - 2024-21626
  • RHSA-2024:0645
  • RHSA-2024:0662
  • RHSA-2024:0666
  • RHSA-2024:0670
  • RHSA-2024:0684
  • RHSA-2024:0717
  • RHSA-2024:0748
  • RHSA-2024:0752
  • RHSA-2024:0755
  • RHSA-2024:0756
  • RHSA-2024:0757
  • RHSA-2024:0758
  • RHSA-2024:0759
  • RHSA-2024:0760
  • RHSA-2024:0764
  • RHSA-2024:10149
  • RHSA-2024:10520
  • RHSA-2024:10525
  • RHSA-2024:10841
  • RHSA-2024:1270
  • RHSA-2024:4597
  • RHSA-2025:0115
  • RHSA-2025:0650
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