The shell_quote function in python-gnupg 0.3.5 does not properly escape characters, which allows context-dependent attackers to execute arbitrary code via shell metacharacters in unspecified vectors, as demonstrated using "" (backslash) characters to form multi-command sequences, a different vulnerability than CVE-2014-1927. NOTE: this vulnerability exists because of an incomplete fix for CVE-2013-7323.

References

• https://nvd.nist.gov/vuln/detail/CVE-2014-1928
• https://code.google.com/p/python-gnupg/
• https://code.google.com/p/python-gnupg/issues/detail?id=98
• GHSA-2jc8-4r6g-282j
• http://seclists.org/oss-sec/2014/q1/246
• http://seclists.org/oss-sec/2014/q1/294
• http://secunia.com/advisories/56616
• http://secunia.com/advisories/59031
• http://www.debian.org/security/2014/dsa-2946