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Ubuntu Security Notice USN-6408-1
October 03, 2023
libxpm vulnerabilities
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A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 23.04
- Ubuntu 22.04 LTS
- Ubuntu 20.04 LTS
Summary:
Several security issues were fixed in libXpm.
Software Description:
- libxpm: X11 pixmap library
Details:
Yair Mizrahi discovered that libXpm incorrectly handled certain malformed
XPM image files. If a user were tricked into opening a specially crafted
XPM image file, a remote attacker could possibly use this issue to consume
memory, leading to a denial of service. (CVE-2023-43786)
Yair Mizrahi discovered that libXpm incorrectly handled certain malformed
XPM image files. If a user were tricked into opening a specially crafted
XPM image file, a remote attacker could use this issue to cause libXpm to
crash, leading to a denial of service, or possibly execute arbitrary code.
(CVE-2023-43787)
Alan Coopersmith discovered that libXpm incorrectly handled certain
malformed XPM image files. If a user were tricked into opening a specially
crafted XPM image file, a remote attacker could possibly use this issue to
cause libXpm to crash, leading to a denial of service. (CVE-2023-43788,
CVE-2023-43789)
Update instructions:
The problem can be corrected by updating your system to the following
package versions:
Ubuntu 23.04:
   libxpm4                         1:3.5.12-1.1ubuntu0.1
Ubuntu 22.04 LTS:
   libxpm4                         1:3.5.12-1ubuntu0.22.04.2
Ubuntu 20.04 LTS:
   libxpm4                         1:3.5.12-1ubuntu0.20.04.2
After a standard system update you need to reboot your computer to make all
the necessary changes.
References:
   https://ubuntu.com/security/notices/USN-6408-1
   CVE-2023-43786, CVE-2023-43787, CVE-2023-43788, CVE-2023-43789
Package Information:
   https://launchpad.net/ubuntu/+source/libxpm/1:3.5.12-1.1ubuntu0.1
   https://launchpad.net/ubuntu/+source/libxpm/1:3.5.12-1ubuntu0.22.04.2
   https://launchpad.net/ubuntu/+source/libxpm/1:3.5.12-1ubuntu0.20.04.2