RHSA-2025:12240 — Security Advisory

An update for libxml2 is now available for Red Hat Enterprise Linux 7 Extended Lifecycle Support.

Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.

The libxml2 library is a development toolbox providing the implementation of various XML standards.

Security Fix(es):

• libxml2: Out-of-Bounds Read in libxml2 (CVE-2025-32414)

• libxml: Heap use after free (UAF) leads to Denial of service (DoS) (CVE-2025-49794)

• libxml: Type confusion leads to Denial of service (DoS) (CVE-2025-49796)

• libxml2: Integer Overflow in xmlBuildQName() Leads to Stack Buffer Overflow in libxml2 (CVE-2025-6021)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.