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CVE-2026-5121 The advisory has been revoked - it doesn't affect any version of package libarchive  (opens in a new tab)

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  • Snyk IDSNYK-UBUNTU1604-LIBARCHIVE-15884069
  • published13 Apr 2026
  • disclosed30 Mar 2026
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Introduced: 30 Mar 2026

CVE-2026-5121  (opens in a new tab)

Amendment

The Ubuntu security team deemed this advisory irrelevant for Ubuntu:16.04.

NVD Description

Note: Versions mentioned in the description apply only to the upstream libarchive package and not the libarchive package as distributed by Ubuntu.

A flaw was found in libarchive. On 32-bit systems, an integer overflow vulnerability exists in the zisofs block pointer allocation logic. A remote attacker can exploit this by providing a specially crafted ISO9660 image, which can lead to a heap buffer overflow. This could potentially allow for arbitrary code execution on the affected system.

References