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Debian Security Advisory DSA 2548-1 (tor)
Information
Severity
Severity
Family
Family
CVSSv2 Base
CVSSv2 Base
CVSSv2 Vector
CVSSv2 Vector
Solution Type
Solution Type
Created
Created
Modified
Modified
Summary
The remote host is missing an update to tor announced via advisory DSA 2548-1.
Insight
Insight
Severel vulnerabilities have been discovered in Tor, an online privacy tool. CVE-2012-3518 Avoid an uninitialised memory read when reading a vote or consensus document that has an unrecognized flavour name. This could lead to a remote, resulting in denial of service. CVE-2012-3519 Try to leak less information about what relays a client is choosing to a side-channel attacker. CVE-2012-4419 By providing specially crafted date strings to a victim tor instance, an attacker can cause it to run into an assertion and shut down Additionally the update to stable includes the following fixes: - - When waiting for a client to renegotiate, don't allow it to add any bytes to the input buffer. This fixes a potential DoS issue [tor-5934, tor-6007]. For the stable distribution (squeeze), these problems have been fixed in version 0.2.2.39-1. For the unstable distribution, these problems have been fixed in version 0.2.3.22-rc-1.
Solution
Solution
We recommend that you upgrade your tor packages.