Ubuntu Security Notice 3860-1 - It was discovered that libcaca incorrectly handled certain images. An attacker could possibly use this issue to cause a denial of service. It was discovered that libcaca incorrectly handled certain images. An attacker could possibly use this issue to execute arbitrary code. It was discovered that libcaca incorrectly handled certain images. An attacker could possibly use this issue to access sensitive information. Various other issues were also addressed.
4beed9e8b0fdc0b7d410c8a0e2056a82da53c18fa4046e48d128cd883035cc8d
==========================================================================
Ubuntu Security Notice USN-3860-1
January 15, 2019
libcaca vulnerabilities
==========================================================================
A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 18.10
- Ubuntu 18.04 LTS
- Ubuntu 16.04 LTS
- Ubuntu 14.04 LTS
Summary:
Several security issues were fixed in libcaca.
Software Description:
- 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 denial of service.
(CVE-2018-20544)
It was discovered that libcaca incorrectly handled certain images.
An attacker could possibly use this issue to execute arbitrary code.
(CVE-2018-20545, CVE-2018-20548, CVE-2018-20459)
It was discovered that libcaca incorrectly handled certain images.
An attacker could possibly use this issue to access sensitive
information.
(CVE-2018-20546, CVE-2018-20547)
Update instructions:
The problem can be corrected by updating your system to the following
package versions:
Ubuntu 18.10:
caca-utils 0.99.beta19-2ubuntu0.18.10.1
libcaca0 0.99.beta19-2ubuntu0.18.10.1
Ubuntu 18.04 LTS:
caca-utils 0.99.beta19-2ubuntu0.18.04.1
libcaca0 0.99.beta19-2ubuntu0.18.04.1
Ubuntu 16.04 LTS:
caca-utils 0.99.beta19-2ubuntu0.16.04.1
libcaca0 0.99.beta19-2ubuntu0.16.04.1
Ubuntu 14.04 LTS:
caca-utils 0.99.beta18-1ubuntu5.1
libcaca0 0.99.beta18-1ubuntu5.1
In general, a standard system update will make all the necessary
changes.
References:
https://usn.ubuntu.com/usn/usn-3860-1
CVE-2018-20544, CVE-2018-20545, CVE-2018-20546, CVE-2018-20547,
CVE-2018-20548, CVE-2018-20549
Package Information:
https://launchpad.net/ubuntu/+source/libcaca/0.99.beta19-2ubuntu0.18.10.1
https://launchpad.net/ubuntu/+source/libcaca/0.99.beta19-2ubuntu0.18.04.1
https://launchpad.net/ubuntu/+source/libcaca/0.99.beta19-2ubuntu0.16.04.1
https://launchpad.net/ubuntu/+source/libcaca/0.99.beta18-1ubuntu5.1