RHSA-2026:51058: Important: libXfont2 security update
Important: libXfont2 security update
Other sources
X.Org X11 libXfont2 runtime librarySecurity Fix(es): libXfont2: BitmapScaleBitmaps Integer Overflow Heap Buffer Overflow (CVE-2026-56001) libXfont2: PCF Font Parsing Heap Buffer Overflow (CVE-2026-56002) libXfont2: computeProps Property Buffer Heap Buffer Overflow (CVE-2026-56003) 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.
— Red Hat
Affected Software
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade
libXfont2to a version that resolves this vulnerability.Patch CVE-2026-56001 - Upgrade
Upgrade
libXfont2to a version that resolves this vulnerability.Patch CVE-2026-56002 - Upgrade
Upgrade
libXfont2to a version that resolves this vulnerability.Patch CVE-2026-56003
Event History
Frequently Asked Questions
What is the severity of RHSA-2026:51058?
The severity of RHSA-2026:51058 is classified as high with a score of 7.
What vulnerabilities are addressed in RHSA-2026:51058?
RHSA-2026:51058 addresses two vulnerabilities: CVE-2026-56001 and CVE-2026-56002, which include integer overflow and heap buffer overflow issues.
How do I fix RHSA-2026:51058?
To fix RHSA-2026:51058, you need to update the libXfont2 package on your system to the latest version provided by Red Hat.
Which operating systems are affected by RHSA-2026:51058?
RHSA-2026:51058 affects multiple versions of Red Hat Enterprise Linux including Power, x86_64, z Systems, and ARM 64.
What is the risk of not addressing RHSA-2026:51058?
Not addressing RHSA-2026:51058 could result in exploitation of buffer overflow vulnerabilities that may compromise system security.