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Fencer Intel
high 8.6

GHSA-g5p6-327m-3fxx json

Talos Linux ships runc vulnerable to the escape to the host attack

published 2y ago modified 2y ago

cvss
8.6
version 3.1, GitHub
cisa kev
Not listed
not in CISA's catalog
epss
—
no score, EPSS covers CVEs only
public exploits
0
none known

Summary

### Impact

Snyk has discovered a vulnerability in all versions of runc <=1.1.11, as used by the Docker engine, along with other containerization technologies such as Kubernetes. Exploitation of this issue can result in container escape to the underlying host OS, either through executing a malicious image or building an image using a malicious Dockerfile or upstream image (i.e., when using FROM). This issue has been assigned the CVE-2024-21626.

### Patches

`runc` runtime was updated to 1.1.12 in Talos v1.5.6 and v1.6.4.

### Workarounds

Inspect the workloads running on the cluster to make sure they are not trying to exploit the vulnerability.

### References

* [CVE-2024-21626](https://github.com/opencontainers/runc/security/advisories/GHSA-xr7r-f8xq-vfvv) * [Vulnerability: runc process.cwd and leaked fds container breakout](https://snyk.io/blog/cve-2024-21626-runc-process-cwd-container-breakout/)

Patch / fix

  • go github.com/siderolabs/talos 1.5.6, 1.6.4

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CVSS scores

assigned by version score vector
GitHub 3.1 8.6 CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H

Affected packages

ecosystem package affected fixed in
go github.com/siderolabs/talos
>=1.6.0, <1.6.4
<1.5.6
1.6.4
1.5.6

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.