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Ubuntu 12.10 USN-1634-1 Moderate: Python Keyring Permissions Issue

ubuntu
Calendar Grey November 20, 2012
Scroller Ubuntu
Addressed various vulnerabilities in Ubuntu's python-keyring impacting user permissions and encryption. Update advised.
Several security issues were fixed in Python Keyring.

Summary

Several security issues were fixed in Python Keyring.

Software Description:

- python-keyring: store and access your passwords safely

Details:

Dwayne Litzenberger discovered that Python Keyring's CryptedFileKeyring

file format used weak cryptography. A local attacker may use this issue to

brute-force CryptedFileKeyring keyring files. This issue only affected

Ubuntu 11.10 and Ubuntu 12.04 LTS. (CVE-2012-4571)

It was discovered that Python Keyring created keyring files with insecure

permissions. A local attacker could use this issue to access keyring files

belonging to other users.

Topics%20covered

Topics Covered

security advisory local attack update recommended ubuntu permission issue python-keyring cryptography issue

Update Instructions

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

Ubuntu 12.10:
  python-keyring                  0.9.2-1ubuntu0.2
  python3-keyring                 0.9.2-1ubuntu0.2

Ubuntu 12.04 LTS:
  python-keyring                  0.9.2-0ubuntu0.12.04.2
  python3-keyring                 0.9.2-0ubuntu0.12.04.2

Ubuntu 11.10:
  python-keyring                  0.9.2-0ubuntu0.11.10.2

In general, a standard system update will make all the necessary changes.
This update uses a new upstream release, which includes additional bug
fixes, and will migrate existing keyring files to the new format upon first
use.

References

https://ubuntu.com/security/notices/USN-1634-1

CVE-2012-4571, https://bugs.launchpad.net/ubuntu/+source/python-keyring/+bug/1004845

Severity
important
Lowest
Low
Medium
High
Critical

November 20, 2012

Topics%20covered

Topics Covered

security advisory local attack update recommended ubuntu permission issue python-keyring cryptography issue

Package Information

https://launchpad.net/ubuntu/+source/python-keyring/0.9.2-1ubuntu0.2
https://launchpad.net/ubuntu/+source/python-keyring/0.9.2-0ubuntu0.12.04.2
https://launchpad.net/ubuntu/+source/python-keyring/0.9.2-0ubuntu0.11.10.2

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