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AUSCERT External Security Bulletin Redistribution
ESB-2021.1333
USN-4921-1: libcaca vulnerability
21 April 2021
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AusCERT Security Bulletin Summary
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Product: libcaca
Publisher: Ubuntu
Operating System: Ubuntu
Impact/Access: Execute Arbitrary Code/Commands -- Existing Account
Resolution: Patch/Upgrade
CVE Names: CVE-2021-3410
Reference: ESB-2021.0812
Original Bulletin:
https://ubuntu.com/security/notices/USN-4921-1
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USN-4921-1: libcaca vulnerability
20 April 2021
libcaca could be made to execute arbitrary code if it received a specially crafted
image.
Releases
o Ubuntu 20.10
o Ubuntu 20.04 LTS
o Ubuntu 18.04 LTS
o Ubuntu 16.04 LTS
o Ubuntu 14.04 ESM
Packages
o libcaca - None
Details
It was discovered that libcaca incorrectly handled certain images.
An attacker could possibly use this issue to execute arbitrary code.
Update instructions
The problem can be corrected by updating your system to the following package
versions:
Ubuntu 20.10
o caca-utils - 0.99.beta19-2.1ubuntu1.20.10.1
o libcaca0 - 0.99.beta19-2.1ubuntu1.20.10.1
Ubuntu 20.04
o caca-utils - 0.99.beta19-2.1ubuntu1.20.04.1
o libcaca0 - 0.99.beta19-2.1ubuntu1.20.04.1
Ubuntu 18.04
o caca-utils - 0.99.beta19-2ubuntu0.18.04.2
o libcaca0 - 0.99.beta19-2ubuntu0.18.04.2
Ubuntu 16.04
o caca-utils - 0.99.beta19-2ubuntu0.16.04.2
o libcaca0 - 0.99.beta19-2ubuntu0.16.04.2
Ubuntu 14.04
o caca-utils - 0.99.beta18-1ubuntu5.1+esm1
o libcaca0 - 0.99.beta18-1ubuntu5.1+esm1
In general, a standard system update will make all the necessary changes.
References
o CVE-2021-3410
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