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CVE-2012-3519

Date: August 25, 2012

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.

Language: C

Severity Score

Related Resources (12)

https://gitweb.torproject.org/tor.git/commit/308f6dad20675c42b29862f4269ad1fbfb00dc9a
https://nvd.nist.gov/vuln/detail/CVE-2012-3519
http://security.gentoo.org/glsa/glsa-201301-03.xml
http://openwall.com/lists/oss-security/2012/08/21/6
https://gitweb.torproject.org/tor.git/commit/d48cebc5e498b0ae673635f40fc57cdddab45d5b
https://people.canonical.com/~ubuntu-security/cve/CVE-2012-3519
https://trac.torproject.org/projects/tor/ticket/6537
http://lists.opensuse.org/opensuse-updates/2012-08/msg00048.html
https://security-tracker.debian.org/tracker/CVE-2012-3519
https://lists.torproject.org/pipermail/tor-announce/2012-August/000086.html
http://secunia.com/advisories/50583
https://www.mend.io/vulnerability-database/CVE-2012-3519

Severity Score

Weakness Type (CWE)

Exposure of Sensitive Information to an Unauthorized Actor

CWE-200

CVSS v3.1

Base Score:
Attack Vector (AV): NETWORK
Attack Complexity (AC): LOW
Privileges Required (PR): NONE
User Interaction (UI): NONE
Scope (S): UNCHANGED
Confidentiality (C): LOW
Integrity (I): NONE
Availability (A): NONE

CVSS v2

Base Score:
Access Vector (AV): NETWORK
Access Complexity (AC): LOW
Authentication (AU): NONE
Confidentiality (C): PARTIAL
Integrity (I): NONE
Availability (A): NONE
Additional information:

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