Ubuntu Security Notice 1634-1 - 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. 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. Various other issues were also addressed.
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