GLSA 202407-07: cpio: Arbitrary Code Execution

http://security.gentoo.org/

Severity:	normal
Title:	cpio: Arbitrary Code Execution
Date:	07/01/2024
Bugs:	#807088
ID:	202407-07

Synopsis

A vulnerability has been discovered in cpio, which can lead to arbitrary code execution.

Background

cpio is a file archival tool which can also read and write tar files.

Affected packages

Package	Vulnerable	Unaffected	Architecture(s)
app-arch/cpio	< 2.13-r1	>= 2.13-r1	All supported architectures

Description

Multiple vulnerabilities have been discovered in cpio. Please review the CVE identifiers referenced below for details.

Impact

GNU cpio allows attackers to execute arbitrary code via a crafted pattern file, because of a dstring.c ds_fgetstr integer overflow that triggers an out-of-bounds heap write. NOTE: it is unclear whether there are common cases where the pattern file, associated with the -E option, is untrusted data.

Workaround

There is no known workaround at this time.

Resolution

All cpio users should upgrade to the latest version:

          # emerge --sync
          # emerge --ask --oneshot --verbose ">=app-arch/cpio-2.13-r1"

References

Availability

This GLSA and any updates to it are available for viewing at the Gentoo Security Website: http://security.gentoo.org/glsa/glsa-202407-07.xml

Concerns?

Security is a primary focus of Gentoo Linux and ensuring the confidentiality and security of our users machines is of utmost importance to us. Any security concerns should be addressed to security@gentoo.org or alternatively, you may file a bug at https://bugs.gentoo.org.