CVE-2014-4650

Publication date 25 June 2014

Last updated 24 July 2024

Ubuntu priority

Cvss 3 Severity Score

The CGIHTTPServer module in Python 2.7.5 and 3.3.4 does not properly handle URLs in which URL encoding is used for path separators, which allows remote attackers to read script source code or conduct directory traversal attacks and execute unintended code via a crafted character sequence, as demonstrated by a %2f separator.

Status

Show unmaintained releases

Package	Ubuntu Release	Status
python2.7	15.04 vivid	Not affected
	14.10 utopic	Not affected
	14.04 LTS trusty	Fixed 2.7.6-8ubuntu0.2
	13.10 saucy	Ignored
	12.04 LTS precise	Fixed 2.7.3-0ubuntu3.8
	10.04 LTS lucid	Not in release
python3.2	15.04 vivid	Not in release
	14.10 utopic	Not in release
	14.04 LTS trusty	Not in release
	13.10 saucy	Not in release
	12.04 LTS precise	Fixed 3.2.3-0ubuntu3.7
	10.04 LTS lucid	Not in release
python3.4	15.04 vivid	Not affected
	14.10 utopic	Not affected
	14.04 LTS trusty	Fixed 3.4.0-2ubuntu1.1
	13.10 saucy	Not in release
	12.04 LTS precise	Not in release
	10.04 LTS lucid	Not in release

Patch details

For informational purposes only. We recommend not to cherry-pick updates. How can I get the fixes?

Package	Patch details
python2.7	Upstream: http://hg.python.org/cpython/rev/b4bab0788768
python3.2	Upstream: http://hg.python.org/cpython/rev/5676797f3a3e
python3.4	Upstream: http://hg.python.org/cpython/rev/847e288d6e93

Severity score breakdown

Parameter	Value
Base score	9.8 · Critical
Attack vector	Network
Attack complexity	Low
Privileges required	None
User interaction	None
Scope	Unchanged
Confidentiality	High
Integrity impact	High
Availability impact	High
Vector	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

References

Related Ubuntu Security Notices (USN)

USN-2653-1
Python vulnerabilities
25 June 2015