runc: CVE-2024-21626

Debian Bug report logs - #1062532
runc: CVE-2024-21626

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Message #5 received at submit@bugs.debian.org (full text, mbox, reply):

From: Salvatore Bonaccorso <carnil@debian.org>

To: Debian Bug Tracking System <submit@bugs.debian.org>

Subject: runc: CVE-2024-21626

Date: Thu, 01 Feb 2024 20:31:54 +0100

Source: runc
Version: 1.1.10+ds1-1
Severity: grave
Tags: security upstream
Justification: user security hole
X-Debbugs-Cc: carnil@debian.org, Debian Security Team <team@security.debian.org>

Hi,

The following vulnerability was published for runc.

CVE-2024-21626[0]:
| 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.


If you fix the vulnerability please also make sure to include the
CVE (Common Vulnerabilities & Exposures) id in your changelog entry.

For further information see:

[0] https://security-tracker.debian.org/tracker/CVE-2024-21626
    https://www.cve.org/CVERecord?id=CVE-2024-21626
[1] https://www.openwall.com/lists/oss-security/2024/01/31/6
[2] https://github.com/opencontainers/runc/security/advisories/GHSA-xr7r-f8xq-vfvv

Please adjust the affected versions in the BTS as needed.

Regards,
Salvatore

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