70529 : Tor Malformed Router Cache Integer Value Handling Remote DoS
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Timeline

Disclosure Date
2011-01-15

Description

Tor contains a flaw that may allow a remote denial of service. The issue is triggered when an error related to malformed router caches and the improper handling of integer values occurs, allowing a remote attacker to cause a denial of service.

Classification

Location: Remote / Network Access
Attack Type: Denial of Service
Impact: Loss of Availability
Solution: Upgrade
Exploit: Exploit Unknown
Disclosure: Vendor Verified

Solution

Upgrade to version 0.2.1.29, 0.2.2.21-alpha or higher, as it has been reported to fix this vulnerability. An upgrade is required as there are no known workarounds.

Products

The Tor Project, Inc.	Tor	0.2.1.28
		0.2.2.20

References

CVE ID: 2011-0493 (see also: NVD)
Secunia Advisory ID: 42905 42907 44620 46472
Other Advisory URL: http://archives.seul.org/or/announce/Jan-2011/msg00000.html
Vendor Specific News/Changelog Entry: http://blog.torproject.org/blog/tor-02129-released-security-patches
http://lists.fedoraproject.org/pipermail/package-announce/2011-May/060123.html
https://gitweb.torproject.org/tor.git/blob/refs/heads/release-0.2.2:/ChangeLog
https://trac.torproject.org/projects/tor/ticket/2352
Vendor Specific Advisory URL: http://www.gentoo.org/security/en/glsa/glsa-201110-13.xml
http://www.us.debian.org/security/2011/dsa-2148

Tools & Filters

	55002

Credit

doorss

CVSSv2 Score

CVSSv2 Base Score = 5.0
Source: nvd.nist.gov | Generated: 2011-01-19 | Disagree?

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