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Debian Security Advisory DSA 2331-1 (tor)

Information

Severity

Severity

Medium

Family

Family

Debian Local Security Checks

CVSSv2 Base

CVSSv2 Base

5.8

CVSSv2 Vector

CVSSv2 Vector

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

Solution Type

Solution Type

Vendor Patch

Created

Created

10 years ago

Modified

Modified

1 year ago

Summary

The remote host is missing an update to tor announced via advisory DSA 2331-1.

Insight

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

Solution

We recommend that you upgrade your tor packages.

Common Vulnerabilities and Exposures (CVE)