Bug 880310 (CVE-2012-5573) - CVE-2012-5573 tor: denial of service when handling SENDME cells
Summary: CVE-2012-5573 tor: denial of service when handling SENDME cells
Keywords:
Status: CLOSED ERRATA
Alias: CVE-2012-5573
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Red Hat Product Security
QA Contact:
URL:
Whiteboard:
Depends On: 880313 880314
Blocks:
TreeView+ depends on / blocked
 
Reported: 2012-11-26 16:41 UTC by Vincent Danen
Modified: 2020-11-05 10:35 UTC (History)
2 users (show)

Fixed In Version:
Doc Type: Bug Fix
Doc Text:
Clone Of:
Environment:
Last Closed: 2013-04-03 18:19:45 UTC
Embargoed:

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Description Vincent Danen 2012-11-26 16:41:03 UTC 
It was reported [1],[2] that Tor suffered from a denial of service vulnerability due to an error when handling SENDME cells.  This could be exploited to cause excessive consumption of memory resources within an entry node.

This is fixed in upstream version 0.2.3.25 (git [3]).

[1] https://secunia.com/advisories/51329/
[2] https://trac.torproject.org/projects/tor/ticket/6252
[3] https://gitweb.torproject.org/arma/tor.git/commitdiff/b9b54568c0bb64c32bd0b362954bdbc8c1234b16
Comment 1 Vincent Danen 2012-11-26 16:46:15 UTC 
Created tor tracking bugs for this issue

Affects: fedora-all [bug 880313]
Affects: epel-5 [bug 880314]
Comment 2 Vincent Danen 2012-11-26 19:24:42 UTC 
This was assigned CVE-2012-5573:

http://www.openwall.com/lists/oss-security/2012/11/26/11
Comment 3 Fedora Update System 2013-03-16 01:39:37 UTC 
tor-0.2.3.25-1802.fc18 has been pushed to the Fedora 18 stable repository.  If problems still persist, please make note of it in this bug report.
Comment 4 Fedora Update System 2013-03-24 22:52:05 UTC 
tor-0.2.3.25-1702.fc17 has been pushed to the Fedora 17 stable repository.  If problems still persist, please make note of it in this bug report.
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