REDHAT-BUG-705192
First published: Mon May 16 2011(Updated: )
A vulnerability in Tor was reported [1] that could allow a malicious remote attacker to cause a denial of service. This vulnerability is due to a boundary error within the policy_summarize() function in src/or/policies.c which can be exploited to crash a Tor directory authority. Upstream announced the release of 0.2.1.30 [2] that is noted to correct this flaw. [1] <a href="http://secunia.com/advisories/43548/">http://secunia.com/advisories/43548/</a> [2] <a href="https://lists.torproject.org/pipermail/tor-announce/2011-February/000000.html">https://lists.torproject.org/pipermail/tor-announce/2011-February/000000.html</a>
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Tor Browser | <0.2.1.30 |
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Reference Links
- http://secunia.com/advisories/43548/
- https://lists.torproject.org/pipermail/tor-announce/2011-February/000000.html
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=705193
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=705194
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=671263
- https://gitweb.torproject.org/tor.git/commitdiff/43414eb98821d3b5c6c65181d7545ce938f82c8e
- https://access.redhat.com/security/cve/CVE-2011-1924
- https://bugzilla.redhat.com/show_bug.cgi?id=705192
Frequently Asked Questions
What is the severity of REDHAT-BUG-705192?
The severity of REDHAT-BUG-705192 is significant as it can lead to a denial of service attack against Tor directory authorities.
How do I fix REDHAT-BUG-705192?
To fix REDHAT-BUG-705192, update Tor to a version that is newer than 0.2.1.30, as the vulnerability has been addressed in later releases.
Who is affected by REDHAT-BUG-705192?
REHDAT-BUG-705192 affects users running Tor versions up to 0.2.1.30.
What technical component is vulnerable in REDHAT-BUG-705192?
The vulnerability in REDHAT-BUG-705192 is due to a boundary error within the policy_summarize() function in src/or/policies.c.
Can REDHAT-BUG-705192 be exploited remotely?
Yes, REDHAT-BUG-705192 can be exploited by a malicious remote attacker to crash a Tor directory authority.
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