ESB-2026.3405
PUBLISHED
CVSS 7.5 HIGH
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AUSCERT External Security Bulletin Redistribution
ESB-2026.3405
libtiff security update
9 April 2026
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AUSCERT Security Bulletin Summary
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Product: libtiff
Publisher: Red Hat
Operating System: Red Hat
Resolution: Patch/Upgrade
CVE Names: CVE-2023-52356
Original Bulletin:
https://access.redhat.com/errata/RHSA-2026:7081
Comment: CVSS (Max): 7.5 CVE-2023-52356 (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H)
CVSS Source: Red Hat
Calculator: https://www.first.org/cvss/calculator/3.1#CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
EPSS (Max): 0.7% (72nd) CVE-2023-52356 2026-04-08
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RHSA-2026:7081 - Security Advisory
Issued: 2026-04-08
Updated: 2026-04-08
Synopsis
Libtiff security update
Type/Severity
Security Advisory: Moderate
Topic
An update for libtiff is now available for Red Hat Enterprise Linux 10.
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):
o 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.
Solution
For details on how to apply this update, which includes the changes described
in this advisory, refer to:
https://access.redhat.com/articles/11258
Affected Products
o Red Hat Enterprise Linux for x86_64 10 x86_64
o Red Hat Enterprise Linux for IBM z Systems 10 s390x
o Red Hat Enterprise Linux for Power, little endian 10 ppc64le
o Red Hat Enterprise Linux for ARM 64 10 aarch64
o Red Hat CodeReady Linux Builder for x86_64 10 x86_64
o Red Hat CodeReady Linux Builder for Power, little endian 10 ppc64le
o Red Hat CodeReady Linux Builder for ARM 64 10 aarch64
o Red Hat CodeReady Linux Builder for IBM z Systems 10 s390x
Fixes
o BZ - 2251344 - CVE-2023-52356 libtiff: Segment fault in libtiff in
TIFFReadRGBATileExt() leading to denial of service
CVEs
o CVE-2023-52356
References
o https://access.redhat.com/security/updates/classification/#moderate
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