Vulnerability CVE-2013-7338
Published: 2014-04-22

Description:
Python before 3.3.4 RC1 allows remote attackers to cause a denial of service (infinite loop and CPU consumption) via a file size value larger than the size of the zip file to the (1) ZipExtFile.read, (2) ZipExtFile.read(n), (3) ZipExtFile.readlines, (4) ZipFile.extract, or (5) ZipFile.extractall function.

Type:

CWE-20

 (Improper Input Validation)

CVSS2 => (AV:N/AC:M/Au:N/C:N/I:N/A:C)

CVSS Base Score
Impact Subscore
Exploitability Subscore
7.1/10
6.9/10
8.6/10
Exploit range
Attack complexity
Authentication
Remote
Medium
No required
Confidentiality impact
Integrity impact
Availability impact
None
None
Complete
Affected software
Python -> Python 
Apple -> Mac os x 

 References:
http://bugs.python.org/issue20078
http://hg.python.org/cpython/rev/79ea4ce431b1
http://lists.apple.com/archives/security-announce/2015/Aug/msg00001.html
http://lists.opensuse.org/opensuse-updates/2014-05/msg00008.html
http://seclists.org/oss-sec/2014/q1/592
http://seclists.org/oss-sec/2014/q1/595
http://www.securityfocus.com/bid/65179
http://www.securitytracker.com/id/1029973
https://docs.python.org/3.3/whatsnew/changelog.html
https://security.gentoo.org/glsa/201503-10
https://support.apple.com/kb/HT205031
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