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Gentoo: GLSA-202407-08 Normal: gzip Security Vulnerability Exploit

gentoo
Calendar Grey July 1, 2024
Dist Gentoo Esm H88
Gentoo Security Notice GLSA 202407-08 addresses a critical security flaw in tar. Users are strongly advised to perform an upgrade.
A vulnerability has been discovered in cpio, which can lead to arbitrary code execution.

Summary

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

Topics%20covered

Topics Covered

security advisory Gentoo arbitrary code execution cpio normal severity code execution threat

Resolution

All cpio users should upgrade to the latest version:
# emerge --sync # emerge --ask --oneshot --verbose ">=app-arch/cpio-2.13-r1"

References

[ 1 ] CVE-2016-2037 https://nvd.nist.gov/vuln/detail/CVE-2016-2037 [ 2 ] CVE-2019-14866 https://nvd.nist.gov/vuln/detail/CVE-2019-14866 [ 3 ] CVE-2021-38185 https://nvd.nist.gov/vuln/detail/CVE-2021-38185

Availability

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

Severity: Normal
Title: cpio: Arbitrary Code Execution
Date: July 01, 2024
Bugs: #807088
ID: 202407-07

Topics%20covered

Topics Covered

security advisory Gentoo arbitrary code execution cpio normal severity code execution threat

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.

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Affected Packages

Package Vulnerable Unaffected ------------- ------------ ------------ app-arch/cpio < 2.13-r1 >= 2.13-r1

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.

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