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AUSCERT External Security Bulletin Redistribution
ESB-2021.0665
USN-4743-1: GDK-PixBuf vulnerability
23 February 2021
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AusCERT Security Bulletin Summary
---------------------------------
Product: gdk-pixbuf
Publisher: Ubuntu
Operating System: Ubuntu
UNIX variants (UNIX, Linux, OSX)
Windows
Impact/Access: Execute Arbitrary Code/Commands -- Remote with User Interaction
Denial of Service -- Remote with User Interaction
Resolution: Patch/Upgrade
CVE Names: CVE-2021-20240
Original Bulletin:
https://ubuntu.com/security/notices/USN-4743-1
Comment: This advisory references vulnerabilities in products which run on
platforms other than Ubuntu. It is recommended that administrators
running gdk-pixbuf check for an updated version of the software for
their operating system.
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USN-4743-1: GDK-PixBuf vulnerability
22 February 2021
GDK-PixBuf could be made to crash if it opened a specially crafted file.
Releases
o Ubuntu 20.10
o Ubuntu 20.04 LTS
Packages
o gdk-pixbuf - GDK Pixbuf library
Details
It was discovered that the GDK-PixBuf library did not properly handle
certain GIF images. If an user or automated system were tricked into
opening a specially crafted GIF file, a remote attacker could use this flaw
to cause GDK-PixBuf to crash, resulting in a denial of service.
Update instructions
The problem can be corrected by updating your system to the following package
versions:
Ubuntu 20.10
o libgdk-pixbuf2.0-0 - 2.40.0+dfsg-5ubuntu0.2
Ubuntu 20.04
o libgdk-pixbuf2.0-0 - 2.40.0+dfsg-3ubuntu0.2
After a standard system update you need to restart your session to make all
the necessary changes.
References
o CVE-2021-20240
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