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Vulnerability record · CVE-2011-0492 · published 19 January 2011

CVE-2011-0492: Tor vulnerability

Tor · Tor

Tor before 0.2.1.29 and 0.2.2.x before 0.2.2.21-alpha allows remote attackers to cause a denial of service (assertion failure and daemon exit) via blobs that trigger a certain file size, as demonstrated by the cached-descriptors.new file.

5.0 CVSS 2.0 Medium EPSS 2.5% · top 15.7% CWE-399 · CWE-399
5.0CVSS 2.0 base score
2.5%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
12References
16 Jun 2026Last modified by NVD

Description

Tor before 0.2.1.29 and 0.2.2.x before 0.2.2.21-alpha allows remote attackers to cause a denial of service (assertion failure and daemon exit) via blobs that trigger a certain file size, as demonstrated by the cached-descriptors.new file.

AV:N/AC:L/Au:N/C:N/I:N/A:P

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
http://archives.seul.org/or/announce/Jan-2011/msg00000.html
http://blog.torproject.org/blog/tor-02129-released-security-patches Patch
http://www.securityfocus.com/bid/45953
https://exchange.xforce.ibmcloud.com/vulnerabilities/64867
https://gitweb.torproject.org/tor.git/blob/refs/heads/release-0.2.2:/ChangeLog Patch
https://trac.torproject.org/projects/tor/ticket/2326 Patch
http://archives.seul.org/or/announce/Jan-2011/msg00000.html
http://blog.torproject.org/blog/tor-02129-released-security-patches Patch
http://www.securityfocus.com/bid/45953
https://exchange.xforce.ibmcloud.com/vulnerabilities/64867
https://gitweb.torproject.org/tor.git/blob/refs/heads/release-0.2.2:/ChangeLog Patch
https://trac.torproject.org/projects/tor/ticket/2326 Patch

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2011-0492), CISA KEV, FIRST EPSS (scores of 2026-10-01). This page is refreshed as NVD updates the record.