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CVE
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CVE-2011-0491

Date: (C)2011-01-19   (M)2017-08-18 


The tor_realloc function in Tor before 0.2.1.29 and 0.2.2.x before 0.2.2.21-alpha does not validate a certain size value during memory allocation, which might allow remote attackers to cause a denial of service (daemon crash) via unspecified vectors, related to "underflow errors."

CVSS Score: 5.0Access Vector: NETWORK
Exploit Score: 10.0Access Complexity: LOW
Impact Score: 2.9Authentication: NONE
 Confidentiality: NONE
 Integrity: NONE
 Availability: PARTIAL





Reference:
BID-45953
http://archives.seul.org/or/announce/Jan-2011/msg00000.html
http://blog.torproject.org/blog/tor-02129-released-security-patches
https://gitweb.torproject.org/tor.git/blob/refs/heads/release-0.2.2:/ChangeLog
https://trac.torproject.org/projects/tor/ticket/2324
tor-torrealloc-dos(64888)

CWE    1
CWE-20
OVAL    2
oval:org.secpod.oval:def:102695
oval:org.secpod.oval:def:102654

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