Out-of-bounds Read Affecting bsdcpio package, versions <0:3.1.2-14.0.3.el7_9


Severity

Recommended
0.0
high
0
10

Based on Oracle Linux security rating.

Threat Intelligence

EPSS
1.11% (66th percentile)

Do your applications use this vulnerable package?

In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.

Test your applications
  • Snyk IDSNYK-ORACLE7-BSDCPIO-18616234
  • published11 Aug 2026
  • disclosed19 Mar 2026

Introduced: 19 Mar 2026

CVE-2026-4424  (opens in a new tab)
CWE-125  (opens in a new tab)

How to fix?

Upgrade Oracle:7 bsdcpio to version 0:3.1.2-14.0.3.el7_9 or higher.
This issue was patched in ELSA-2026-8517.

NVD Description

Note: Versions mentioned in the description apply only to the upstream bsdcpio package and not the bsdcpio package as distributed by Oracle. See How to fix? for Oracle:7 relevant fixed versions and status.

A flaw was found in libarchive. This heap out-of-bounds read vulnerability exists in the RAR archive processing logic due to improper validation of the LZSS sliding window size after transitions between compression methods. A remote attacker can exploit this by providing a specially crafted RAR archive, leading to the disclosure of sensitive heap memory information without requiring authentication or user interaction.

References

CVSS Base Scores

version 3.1