Debian alert DLA-4558-1 (libexif)

From:
             
 
Emmanuel Arias <eamanu@debian.org>
To:
             
 
debian-lts-announce@lists.debian.org
Subject:
             
 
[SECURITY] [DLA 4558-1] libexif security update
Date:
             
 
Fri, 01 May 2026 12:29:10 -0300
Message-ID:
             
 
<afTGxqnuzfiT3Kan@debian>
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Debian LTS Advisory DLA-4558-1                debian-lts@lists.debian.org
https://www.debian.org/lts/security/                       Emmanuel Arias
May 01, 2026                                  https://wiki.debian.org/LTS
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Package        : libexif
Version        : 0.6.22-3+deb11u1
CVE ID         : CVE-2026-32775 CVE-2026-40385 CVE-2026-40386
Debian Bug     : 1131116 1133922 1133923

Three security vulnerabilities were discovered in libexif, a library to reads
and writes EXIF metainformation from and to images files, that can causes
crashes or information leaks.

CVE-2026-32775

    If the exif_mnote_data_get_value function in MakerNotes gets passed
    in a 0 size, the passed in-buffer would be overwritten due to an
    integer underflow.

CVE-2026-40385

    An unsigned 32bit integer overflow in Nikon MakerNote handling could
    be used by local attackers to cause crashes or information leaks.

CVE-2026-40386

    An integer underflow in size checking for Fuji and Olympus MakerNote
    decoding could be used by attackers to crash or leak information out
    of libexif-using programs.

For Debian 11 bullseye, these problems have been fixed in version
0.6.22-3+deb11u1.

We recommend that you upgrade your libexif packages.

For the detailed security status of libexif please refer to
its security tracker page at:
https://security-tracker.debian.org/tracker/libexif

Further information about Debian LTS security advisories, how to apply
these updates to your system and frequently asked questions can be
found at: https://wiki.debian.org/LTS


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