CVE-2025-5917: Libarchive: off by one error in build_ustar_entry_name() at archive_write_set_format_pax.c
Description
A vulnerability has been identified in the libarchive library. This flaw involves an 'off-by-one' miscalculation when handling prefixes and suffixes for file names. This can lead to a 1-byte write overflow. While seemingly small, such an overflow can corrupt adjacent memory, leading to unpredictable program behavior, crashes, or in specific circumstances, could be leveraged as a building block for more sophisticated exploitation.
Classification
CVE ID: CVE-2025-5917
Problem Types
Out-of-bounds WriteAffected 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: 1.28% (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-2025-5917https://access.redhat.com/security/cve/CVE-2025-5917
https://bugzilla.redhat.com/show_bug.cgi?id=2370874
https://github.com/libarchive/libarchive/pull/2588
https://github.com/libarchive/libarchive/releases/tag/v3.8.0