CVE-2024-216268.6HighCWE-403

CVE-2024-21626: runc container breakout through process.cwd trickery and leaked fds

opencontainers · runc

Vendor fix available · Affected: opencontainers runc · Exploitation: likely to be exploited (10% or more)

Not in CyberSIXT coverage yet: no article names this CVE. This page shows the public record.

18.9%probability of exploitation in the next 30 days

97th percentile

050100

Higher than 97% of scored CVEs

8.6HighCVSS 3.1

LowMediumHighCrit.

DescriptionCVE.org

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.

Affected products1

From the CVE record. A product or version that is not listed is unknown, not unaffected.

opencontainers · runc>=v1.0.0-rc93, < 1.1.12

On the Atlas

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Open the Atlas

Exploitation: Likely to be exploited (10% or more). EPSS gives it a 10% or higher chance of exploitation in the next 30 days.
CISA KEV: Not listed
Public check: No public nuclei template
Weakness: Exposure of File Descriptor to Unintended Control Sphere · Denial of Service
Vendor: opencontainers
Published: January 2024
Band: Likely to be exploited (10% or more), January 2024

CoverageNo articles yet

No CyberSIXT article names CVE-2024-21626 yet, so there is no coverage timeline, action brief or change log for it. Everything on this page comes from the public CVE record, CISA KEV, EPSS and the nuclei template index. Search the archive or see the CVEs in the news.

References

28 more references are in the CVE record.