MGASA-2013-0252: bzr Mageia

Vulnerability summary

MGASA-2013-0252 is a vulnerability in bzr Mageia with no CVSS score yet.

Timeline

1. 22-08-2013
   PublishedVulnerability first disclosed.
2. 16-04-2026
   Last modifiedVulnerability information updated.

Description

Updated python3, bzr and some python packages fix security vulnerabilties Updated python3 packages fix security vulnerabilities: A denial of service flaw was found in the way SSL module implementation of Python 3 performed matching of the certificate's name in the case it contained many '*' wildcard characters. A remote attacker, able to obtain valid certificate with its name containing a lot of '*' wildcard characters could use this flaw to cause denial of service (excessive CPU consumption) by issuing request to validate such a certificate for / to an application using the Python's ssl.match_hostname() functionality (CVE-2013-2099). Ryan Sleevi of the Google Chrome Security Team has discovered that Python's SSL module doesn't handle NULL bytes inside subjectAltNames general names. This could lead to a breach when an application uses ssl.match_hostname() to match the hostname againt the certificate's subjectAltName's dNSName general names. (CVE-2013-4238). Additionally, a linking issue when compiling C extensions for Python 3 has been fixed in Mageia 3 (mga#9395). The CVE-2013-2099 issue also affects bzr, python-requests, python-tornado, python-pip, and python-virtualenv, and those have been updated as well.

No weakness data has been published for this record.