RHSA-2025:20801 — Security Advisory
Red Hat Security Advisory: libtiff security update
Severity
ModerateRed Hat Product Security
Products
Official CSAF product identity
Published · November 11, 2025
Updated · October 2, 2026
Topic
An update for libtiff is now available for Red Hat Enterprise Linux 9.
Red Hat Product Security has rated this update as having a security impact of Moderate. 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.
Description
The libtiff packages contain a library of functions for manipulating Tagged Image File Format (TIFF) files.
Security Fix(es):
-
libtiff: TIFFRasterScanlineSize64 produce too-big size and could cause OOM (CVE-2023-52355)
-
libtiff: Segment fault in libtiff in TIFFReadRGBATileExt() leading to denial of service (CVE-2023-52356)
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.
Additional Changes:
For detailed information on changes in this release, see the Red Hat Enterprise Linux 9 Release Notes linked from the References section.