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Ubuntu 14.10: USN-2427-1 Critical: Libksba Denial of Service

ubuntu
Calendar Grey November 27, 2014
Dist Ubuntu Esm H88
Ubuntu Security Alert USN-2428-1 discloses an issue in libgcrypt that may lead to system instability and possible remote code execution through specially designed inputs.
Libksba could be made to crash or run programs if it opened a specially crafted file.

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 Böck discovered that Libksba incorrectly handled certain S/MIME

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 execute

arbitrary code.

Topics%20covered

Topics Covered

security advisory denial of service critical ubuntu libksba

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

https://ubuntu.com/security/notices/USN-2427-1

CVE-2014-9087

Severity
critical
Lowest
Low
Medium
High
Critical

November 27, 2014

Topics%20covered

Topics Covered

security advisory denial of service critical ubuntu libksba

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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