------------------------------------------------------------------------- Debian LTS Advisory DLA-4411-1 [email protected] https://www.debian.org/lts/security/ Guilhem Moulin December 16, 2025 https://wiki.debian.org/LTS -------------------------------------------------------------------------
Package : libgd2
Version : 2.3.0-2+deb11u1
CVE ID : CVE-2021-38115 CVE-2021-40145 CVE-2021-40812
Debian Bug : 991912
Vulnerabilities were found in libgd2, the GD Graphics Library, which
could lead to Denial of Service via crafted input files.
CVE-2021-38115
Maryam Ebrahimzadeh discovered an out-of-bounds read vulnerability
in read_header_tga(), which may lead to Denial of Service via a
crafted TGA file.
CVE-2021-40145
Maryam Ebrahimzadeh discovered a double free vulnerability in
gdImageGd2Ptr().
CVE-2021-40812
Maryam Ebrahimzadeh discovered out-of-bounds read vulnerabilities,
which may lead to Denial of Service via a crafted BMP or WebP file.
For Debian 11 bullseye, these problems have been fixed in version
2.3.0-2+deb11u1.
We recommend that you upgrade your libgd2 packages.
For the detailed security status of libgd2 please refer to
its security tracker page at:
https://security-tracker.debian.org/tracker/libgd2
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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