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Test ID:1.3.6.1.4.1.25623.1.0.70547
Category:Debian Local Security Checks
Title:Debian Security Advisory DSA 2331-1 (tor)
Summary:The remote host is missing an update to tor;announced via advisory DSA 2331-1.
Description:Summary:
The remote host is missing an update to tor
announced via advisory DSA 2331-1.

Vulnerability Insight:
It has been discovered by frosty_un that a design flaw in Tor, an online
privacy tool, allows malicious relay servers to learn certain information
that they should not be able to learn. Specifically, a relay that a user
connects to directly could learn which other relays that user is
connected to directly. In combination with other attacks, this issue
can lead to deanonymizing the user. The Common Vulnerabilities and
Exposures project has assigned CVE-2011-2768 to this issue.

In addition to fixing the above mentioned issues, the updates to oldstable
and stable fix a number of less critical issues (CVE-2011-2769).

For the oldstable distribution (lenny), this problem has been fixed in
version 0.2.1.31-1~
lenny+1. Due to technical limitations in the Debian
archive scripts, the update cannot be released synchronously with the
packages for stable. It will be released shortly.

For the stable distribution (squeeze), this problem has been fixed in
version 0.2.1.31-1.

For the unstable and testing distributions, this problem has been fixed in
version 0.2.2.34-1.

For the experimental distribution, this problem have has fixed in version
0.2.3.6-alpha-1.

Solution:
We recommend that you upgrade your tor packages.

CVSS Score:
5.8

CVSS Vector:
AV:N/AC:M/Au:N/C:P/I:P/A:N

Cross-Ref: Common Vulnerability Exposure (CVE) ID: CVE-2011-2768
Debian Security Information: DSA-2331 (Google Search)
http://www.debian.org/security/2011/dsa-2331
Common Vulnerability Exposure (CVE) ID: CVE-2011-2769
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