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AUSCERT External Security Bulletin Redistribution
ESB-2021.3521
USN-5119-1: libcaca vulnerabilities
22 October 2021
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AusCERT Security Bulletin Summary
---------------------------------
Product: libcaca
Publisher: Ubuntu
Operating System: Ubuntu
UNIX variants (UNIX, Linux, OSX)
Windows
Impact/Access: Denial of Service -- Remote/Unauthenticated
Reduced Security -- Remote/Unauthenticated
Resolution: Patch/Upgrade
CVE Names: CVE-2021-30499 CVE-2021-30498
Original Bulletin:
https://ubuntu.com/security/notices/USN-5119-1
Comment: This advisory references vulnerabilities in products which run on
platforms other than Ubuntu. It is recommended that administrators
running libcaca check for an updated version of the software for
their operating system.
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USN-5119-1: libcaca vulnerabilities
21 October 2021
libcaca could be made to crash if it received a specially crafted image.
Releases
o Ubuntu 21.10
o Ubuntu 21.04
o Ubuntu 20.04 LTS
o Ubuntu 18.04 LTS
o Ubuntu 16.04 ESM
o Ubuntu 14.04 ESM
Packages
o libcaca - text mode graphics utilities
Details
It was discovered that libcaca incorrectly handled certain images. An attacker
could possibly use this issue to cause a crash. ( CVE-2021-30498 ,
CVE-2021-30499 )
Update instructions
The problem can be corrected by updating your system to the following package
versions:
Ubuntu 21.10
o caca-utils - 0.99.beta19-2.2ubuntu2.1
o libcaca0 - 0.99.beta19-2.2ubuntu2.1
Ubuntu 21.04
o caca-utils - 0.99.beta19-2.2ubuntu1.1
o libcaca0 - 0.99.beta19-2.2ubuntu1.1
Ubuntu 20.04
o caca-utils - 0.99.beta19-2.1ubuntu1.20.04.2
o libcaca0 - 0.99.beta19-2.1ubuntu1.20.04.2
Ubuntu 18.04
o caca-utils - 0.99.beta19-2ubuntu0.18.04.3
o libcaca0 - 0.99.beta19-2ubuntu0.18.04.3
Ubuntu 16.04
o caca-utils - 0.99.beta19-2ubuntu0.16.04.2+esm1
Available with UA Infra or UA Desktop
o libcaca0 - 0.99.beta19-2ubuntu0.16.04.2+esm1
Available with UA Infra or UA Desktop
Ubuntu 14.04
o caca-utils - 0.99.beta18-1ubuntu5.1+esm2
Available with UA Infra or UA Desktop
o libcaca0 - 0.99.beta18-1ubuntu5.1+esm2
Available with UA Infra or UA Desktop
In general, a standard system update will make all the necessary changes.
References
o CVE-2021-30498
o CVE-2021-30499
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