The exec_command function in common/helpers.py in Gajim before 0.15 allows user-assisted remote attackers to execute arbitrary commands via shell metacharacters in an href attribute.

References

• https://nvd.nist.gov/vuln/detail/CVE-2012-2085
• https://trac.gajim.org/changeset/bc296e96ac10
• https://trac.gajim.org/ticket/7031
• http://secunia.com/advisories/48708
• http://secunia.com/advisories/48794
• http://security.gentoo.org/glsa/glsa-201208-04.xml
• http://www.openwall.com/lists/oss-security/2012/04/08/1
• http://www.openwall.com/lists/oss-security/2012/04/08/2
• http://www.securityfocus.com/bid/52943