CVE-2025-5915: Libarchive: heap buffer over read in copy_from_lzss_window() at archive_read_support_format_rar.c
Description
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.
Classification
CVE ID: CVE-2025-5915
Problem Types
Heap-based Buffer OverflowAffected Products
Vendor: Red Hat
Product: Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 6, Red Hat Enterprise Linux 7, Red Hat Enterprise Linux 8, Red Hat Enterprise Linux 9, Red Hat OpenShift Container Platform 4
Exploit Prediction Scoring System (EPSS)
EPSS Score: 0.01% (probability of being exploited)
EPSS Percentile: 1.26% (scored less or equal to compared to others)
EPSS Date: 2025-06-14 (when was this score calculated)
References
https://nvd.nist.gov/vuln/detail/CVE-2025-5915https://access.redhat.com/security/cve/CVE-2025-5915
https://bugzilla.redhat.com/show_bug.cgi?id=2370865
https://github.com/libarchive/libarchive/pull/2599
https://github.com/libarchive/libarchive/releases/tag/v3.8.0