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CVE-2025-5915

Libarchive: heap buffer over read in copy_from_lzss_window() at archive_read_support_format_rar.c

Published: 6/9/2025 Last updated: 6/30/2026 Reserved: 6/9/2025

A vulnerability has been identified in the libarchive library. This flaw can lead to a heap buffer over-read due to the size of a filter block potentially exceeding the Lempel-Ziv-Storer-Schieber (LZSS) window. This means the library may attempt to read beyond the allocated memory buffer, which can result in unpredictable program behavior, crashes (denial of service), or the disclosure of sensitive information from adjacent memory regions.

CNA assigner: redhat (53f830b8-0a3f-465b-8143-3b8a9948e749) Requested by: n/a

Metrics

Version Score Severity Vector String
3.1 6.6 Medium CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:N/A:H

Opam packages affected (1)

conf-cpio

Products affected (14)

Product Vendor Version
<= V1.16.18 (Build 18081617)
Red Hat Enterprise Linux 10 Red Hat <= V1.16.18 (Build 18081617)
Red Hat Enterprise Linux 6 Red Hat <= V1.11.10 (Build 18122616)
Red Hat Enterprise Linux 7 Red Hat <= V1.11.10 (Build 18122616)
Red Hat Enterprise Linux 8 Red Hat <= V1.11.10 (Build 18122616)
Red Hat Enterprise Linux 9 Red Hat n/a
Red Hat Enterprise Linux 8 Red Hat 10.5
Red Hat Enterprise Linux 9 Red Hat 10.1
4.0.0
Red Hat Enterprise Linux 10 Red Hat <= 0.6.0
Red Hat Enterprise Linux 6 Red Hat 12.1.3
Red Hat Enterprise Linux 7 Red Hat 12.2.3-12.2.10
Red Hat OpenShift Container Platform 4 Red Hat n/a
Red Hat OpenShift Container Platform 4 Red Hat 9.7

References (8)