CVE-2014-4616

Publication date 26 June 2014

Last updated 25 August 2025

Ubuntu priority

Cvss 3 Severity Score

Description

Array index error in the scanstring function in the _json module in Python 2.7 through 3.5 and simplejson before 2.6.1 allows context-dependent attackers to read arbitrary process memory via a negative index value in the idx argument to the raw_decode function.

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 end of life
	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/50c07ed1743d Upstream: https://hg.python.org/cpython/rev/4bd1fb0f4f44 Upstream: https://hg.python.org/cpython/rev/c7b93519807a
python3.4	Upstream: http://hg.python.org/cpython/rev/7b95540ced5c/ Upstream: https://hg.python.org/cpython/rev/ef52ae167555

Severity score breakdown

Parameter	Value
Base score	5.9 · Medium
Attack vector	Network
Attack complexity	High
Privileges required	None
User interaction	None
Scope	Unchanged
Confidentiality	High
Integrity impact	None
Availability impact	None
Vector	CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N

CVE-2014-4616

Cvss 3 Severity Score

Description

Status

Patch details

Severity score breakdown

References

Related Ubuntu Security Notices (USN)

Other references