Bug 1549191 (CVE-2018-1060) - CVE-2018-1060 python: DOS via regular expression catastrophic backtracking in apop() method in pop3lib [NEEDINFO]
Summary: CVE-2018-1060 python: DOS via regular expression catastrophic backtracking in...
Status: NEW
Alias: CVE-2018-1060
Product: Security Response
Classification: Other
Component: vulnerability   
(Show other bugs)
Version: unspecified
Hardware: All
OS: Linux
low
low
Target Milestone: ---
Assignee: Red Hat Product Security
QA Contact:
URL:
Whiteboard: impact=low,public=20180314,reported=2...
Keywords: Security
Depends On: 1563450 1563451 1563452 1563449 1563453 1563454 1563461 1563462 1563463 1563464 1563465
Blocks: 1549194
TreeView+ depends on / blocked
 
Reported: 2018-02-26 16:19 UTC by Pedro Sampaio
Modified: 2019-04-18 23:52 UTC (History)
20 users (show)

Fixed In Version: python 2.7.15, python 3.4.9, python 3.5.6, python 3.7.0
Doc Type: If docs needed, set a value
Doc Text:
A flaw was found in the way catastrophic backtracking was implemented in python's pop3lib's apop() method. An attacker could use this flaw to cause denial of service.
Story Points: ---
Clone Of:
Environment:
Last Closed:
Type: ---
Regression: ---
Mount Type: ---
Documentation: ---
CRM:
Verified Versions:
Category: ---
oVirt Team: ---
RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: ---
hhorak: needinfo? (jamills)
hhorak: needinfo? (briang)


Attachments (Terms of Use)


External Trackers
Tracker ID Priority Status Summary Last Updated
Red Hat Product Errata RHSA-2018:3041 None None None 2018-10-30 07:24 UTC

Description Pedro Sampaio 2018-02-26 16:19:47 UTC
Catastrophic backtracking vulnerability was found in Python. Exploitation of a regular expression in pop3lib's apop() method although limited by 2048 chars, can lead to denial of service.

Upstream issue:

https://bugs.python.org/issue32981

Comment 2 Huzaifa S. Sidhpurwala 2018-04-04 01:49:52 UTC
External References:

https://docs.python.org/3.6/whatsnew/changelog.html#python-3-6-5-final

Comment 3 Huzaifa S. Sidhpurwala 2018-04-04 02:01:13 UTC
Created python33 tracking bugs for this issue:

Affects: fedora-all [bug 1563465]


Created python35 tracking bugs for this issue:

Affects: fedora-all [bug 1563461]


Created python34 tracking bugs for this issue:

Affects: fedora-all [bug 1563463]


Created python26 tracking bugs for this issue:

Affects: fedora-all [bug 1563464]


Created python3 tracking bugs for this issue:

Affects: fedora-all [bug 1563462]

Comment 4 Huzaifa S. Sidhpurwala 2018-04-04 02:23:51 UTC
Acknowledgments:

Name: the Python security response team

Comment 5 errata-xmlrpc 2018-10-30 07:24:31 UTC
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 7

Via RHSA-2018:3041 https://access.redhat.com/errata/RHSA-2018:3041


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