Secunia Security Advisory - Two vulnerabilities have been reported in Tor, which can be exploited by malicious people to cause a DoS (Denial of Service).
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TITLE:
Tor Two Assertion Failure Denial of Service Vulnerabilities
SECUNIA ADVISORY ID:
SA50578
VERIFY ADVISORY:
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http://secunia.com/advisories/50578/
Customer Area (Credentials Required)
https://ca.secunia.com/?page=viewadvisory&vuln_id=50578
RELEASE DATE:
2012-09-14
DISCUSS ADVISORY:
http://secunia.com/advisories/50578/#comments
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http://secunia.com/advisories/50578/
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DESCRIPTION:
Two vulnerabilities have been reported in Tor, which can be exploited
by malicious people to cause a DoS (Denial of Service).
1) An assertion failure within the "tor_timegm()" function when
handling time information within a directory object can be exploited
to cause a crash.
2) An assertion failure within the
"compare_tor_addr_to_addr_policy()" function when handling certain
port values can be exploited to crash directory authorities.
The vulnerabilities are reported in versions prior to 0.2.2.39.
SOLUTION:
Update to version 0.2.2.39.
PROVIDED AND/OR DISCOVERED BY:
Reported by the vendor.
ORIGINAL ADVISORY:
https://gitweb.torproject.org/tor.git/blob/release-0.2.2:/ReleaseNotes
OTHER REFERENCES:
Further details available in Customer Area:
http://secunia.com/vulnerability_intelligence/
DEEP LINKS:
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EXTENDED DESCRIPTION:
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EXTENDED SOLUTION:
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EXPLOIT:
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