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[USN-2427-1] Libksba vulnerability

Posted on 27 November 2014
Ubuntu Security

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Ubuntu Security Notice USN-2427-1
November 27, 2014

libksba vulnerability
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A security issue affects these releases of Ubuntu and its derivatives:

- Ubuntu 14.10
- Ubuntu 14.04 LTS
- Ubuntu 12.04 LTS

Summary:

Libksba could be made to crash or run programs if it opened a specially
crafted file.

Software Description:
- libksba: X.509 and CMS support library

Details:

Hanno B=C3=B6ck discovered that Libksba incorrectly handled certain S/MIM=
E
messages or ECC based OpenPGP data. An attacker could use this issue to
cause Libksba to crash, resulting in a denial of service, or possibly exe=
cute
arbitrary code.

Update instructions:

The problem can be corrected by updating your system to the following
package versions:

Ubuntu 14.10:
libksba8 1.3.0-3ubuntu0.14.10.1

Ubuntu 14.04 LTS:
libksba8 1.3.0-3ubuntu0.14.04.1

Ubuntu 12.04 LTS:
libksba8 1.2.0-2ubuntu0.1

In general, a standard system update will make all the necessary changes.=


References:
http://www.ubuntu.com/usn/usn-2427-1
CVE-2014-9087

Package Information:
https://launchpad.net/ubuntu/+source/libksba/1.3.0-3ubuntu0.14.10.1
https://launchpad.net/ubuntu/+source/libksba/1.3.0-3ubuntu0.14.04.1
https://launchpad.net/ubuntu/+source/libksba/1.2.0-2ubuntu0.1

 

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