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[ GLSA 201101-02 ] Tor: Remote heap-based buffer overflow
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PostPosted: Sat Jan 15, 2011 2:26 am    Post subject: [ GLSA 201101-02 ] Tor: Remote heap-based buffer overflow Reply with quote

Gentoo Linux Security Advisory

Title: Tor: Remote heap-based buffer overflow (GLSA 201101-02)
Severity: high
Exploitable: remote
Date: January 15, 2011
Bug(s): #349312
ID: 201101-02

Synopsis


Tor is vulnerable to a heap-based buffer overflow that may allow arbitrary
code execution.


Background


Tor is an implementation of second generation Onion Routing, a
connection-oriented anonymizing communication service.


Affected Packages

Package: net-misc/tor
Vulnerable: < 0.2.1.28
Unaffected: >= 0.2.1.28
Architectures: All supported architectures


Description


Tor contains a heap-based buffer overflow in the processing of user or
attacker supplied data. No additional information is available.


Impact


Successful exploitation of this vulnerability may allow an
unauthenticated remote attacker to execute arbitrary code with the
permissions of the Tor user, or to cause a Denial of Service.


Workaround


There is no known workaround at this time.


Resolution


All Tor users should upgrade to the latest stable version:
Code:
# emerge --sync
    # emerge --ask --oneshot --verbose ">=net-misc/tor-0.2.1.28"


References

CVE-2010-1676
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