Copyright © 2012 Red Hat, Inc. All rights reserved. Moderate 2026-05-20T22:59:46 libsolv: Stack-based buffer overflow in libsolv's Debian metadata parser when handling SHA384/SHA512 checksums 6.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H CWE-121

A flaw was found in libsolv. This stack-based buffer overflow vulnerability occurs in libsolv's Debian metadata parser when processing specially crafted Debian repository metadata. An attacker could exploit this by providing malicious SHA384 or SHA512 checksum tags, leading to memory corruption and a denial of service (DoS) in the affected system.

This Moderate impact flaw in libsolv's Debian metadata parser can lead to a denial of service due to a stack-based buffer overflow. Exploitation requires a victim to process specially crafted, untrusted Debian repository metadata containing malicious SHA384 or SHA512 checksums. While memory corruption occurs, reliable system compromise has not been demonstrated, and the vulnerability is not typically exposed in default Red Hat product configurations. This issue was discovered by Found by AISLE in partnership with Red Hat. To mitigate this issue, ensure that libsolv only processes trusted and cryptographically signed Debian repository metadata. Avoid ingesting or processing `Packages` files from untrusted or unverified sources. Red Hat Enterprise Linux 10 Affected libsolv Red Hat Enterprise Linux 7 Fix deferred libsolv Red Hat Enterprise Linux 8 Not affected libsolv Red Hat Enterprise Linux 9 Fix deferred libsolv Red Hat Hardened Images Affected libsolv Red Hat OpenShift Container Platform 4 Fix deferred rhcos Red Hat Satellite 6 Fix deferred satellite-capsule:el8/libsolv Red Hat Update Infrastructure 4 for Cloud Providers Fix deferred libsolv https://www.cve.org/CVERecord?id=CVE-2026-9150 https://nvd.nist.gov/vuln/detail/CVE-2026-9150 https://github.com/openSUSE/libsolv/pull/616