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Debian Security Advisory DSA 3877-1 (tor - security update)
Information
Severity
Severity
Family
Family
CVSSv2 Base
CVSSv2 Base
CVSSv2 Vector
CVSSv2 Vector
Solution Type
Solution Type
Created
Created
Modified
Modified
Summary
It has been discovered that Tor, a connection-based low-latency anonymous communication system, contain a flaw in the hidden service code when receiving a BEGIN_DIR cell on a hidden service rendezvous circuit. A remote attacker can take advantage of this flaw to cause a hidden service to crash with an assertion failure (TROVE-2017-005).
Affected Software
Affected Software
tor on Debian Linux
Detection Method
Detection Method
This check tests the installed software version using the apt package manager.
Solution
Solution
For the stable distribution (jessie), this problem has been fixed in version 0.2.5.14-1. For the upcoming stable distribution (stretch), this problem will be fixed in version 0.2.9.11-1~deb9u1. For the unstable distribution (sid), this problem has been fixed in version 0.2.9.11-1. We recommend that you upgrade your tor packages.