Bug 880310 - (CVE-2012-5573) CVE-2012-5573 tor: denial of service when handling SENDME cells
CVE-2012-5573 tor: denial of service when handling SENDME cells
Status: CLOSED ERRATA
Product: Security Response
Classification: Other
Component: vulnerability (Show other bugs)
unspecified
All Linux
medium Severity medium
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Assigned To: Red Hat Product Security
impact=moderate,public=20120628,repor...
: Security
Depends On: 880313 880314
Blocks:
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Reported: 2012-11-26 11:41 EST by Vincent Danen
Modified: 2013-04-03 14:19 EDT (History)
3 users (show)

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Doc Type: Bug Fix
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Last Closed: 2013-04-03 14:19:45 EDT
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RHEL 7.3 requirements from Atomic Host:


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Description Vincent Danen 2012-11-26 11:41:03 EST
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 11:46:15 EST
Created tor tracking bugs for this issue

Affects: fedora-all [bug 880313]
Affects: epel-5 [bug 880314]
Comment 2 Vincent Danen 2012-11-26 14:24:42 EST
This was assigned CVE-2012-5573:

http://www.openwall.com/lists/oss-security/2012/11/26/11
Comment 3 Fedora Update System 2013-03-15 21:39:37 EDT
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 18:52:05 EDT
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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