It has been discovered that Tor treats the contents of some buffer chunks as if they were a NUL-terminated string. This issue could enable a remote attacker to crash a Tor client, hidden service, relay, or authority.

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Debian Security Advisory DSA-3694-1                   This email address is being protected from spambots. You need JavaScript enabled to view it.
https://www.debian.org/security/                       Moritz Muehlenhoff
October 18, 2016                      https://www.debian.org/security/faq
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Package        : tor
CVE ID         : not yet available

It has been discovered that Tor treats the contents of some buffer
chunks as if they were a NUL-terminated string.  This issue could
enable a remote attacker to crash a Tor client, hidden service, relay,
or authority.

For the stable distribution (jessie), this problem has been fixed in
version 0.2.5.12-3.

For the unstable distribution (sid), this problem has been fixed in
version 0.2.8.9-1.

For the experimental distribution, this problem has been fixed in
version 0.2.9.4-alpha-1.

We recommend that you upgrade your tor packages.

Further information about Debian Security Advisories, how to apply
these updates to your system and frequently asked questions can be
found at: https://www.debian.org/security/

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