CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
NONE
Availability Impact
NONE
AV:N/AC:L/Au:N/C:P/I:N/A:N
AI Score
Confidence
Low
EPSS
Percentile
79.3%
routerlist.c in Tor before 0.2.2.38 uses a different amount of time for relay-list iteration depending on which relay is chosen, which might allow remote attackers to obtain sensitive information about relay selection via a timing side-channel attack.
lists.opensuse.org/opensuse-updates/2012-08/msg00048.html
openwall.com/lists/oss-security/2012/08/21/6
secunia.com/advisories/50583
security.gentoo.org/glsa/glsa-201301-03.xml
gitweb.torproject.org/tor.git/commit/308f6dad20675c42b29862f4269ad1fbfb00dc9a
gitweb.torproject.org/tor.git/commit/d48cebc5e498b0ae673635f40fc57cdddab45d5b
lists.torproject.org/pipermail/tor-announce/2012-August/000086.html
trac.torproject.org/projects/tor/ticket/6537