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Debian Security Advisory DSA-3741-1                   security@debian.org
https://www.debian.org/security/                       Sebastien Delafond
December 20, 2016                     https://www.debian.org/security/faq
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Package        : tor
CVE ID         : CVE-2016-1254
Debian Bug     : 848847

It was discovered that Tor, a connection-based low-latency anonymous
communication system, may read one byte past a buffer when parsing
hidden service descriptors. This issue may enable a hostile hidden
service to crash Tor clients depending on hardening options and malloc
implementation.

For the stable distribution (jessie), this problem has been fixed in
version 0.2.5.12-4.

For the testing (stretch) and unstable (sid) distributions, this
problem has been fixed in version 0.2.9.8-2.

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/

Mailing list: debian-security-announce@lists.debian.org

Debian: DSA-3741-1: tor security update

December 20, 2016
It was discovered that Tor, a connection-based low-latency anonymous communication system, may read one byte past a buffer when parsing hidden service descriptors

Summary

For the stable distribution (jessie), this problem has been fixed in
version 0.2.5.12-4.

For the testing (stretch) and unstable (sid) distributions, this
problem has been fixed in version 0.2.9.8-2.

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/

Mailing list: debian-security-announce@lists.debian.org

Severity
It was discovered that Tor, a connection-based low-latency anonymous
communication system, may read one byte past a buffer when parsing
hidden service descriptors. This issue may enable a hostile hidden
service to crash Tor clients depending on hardening options and malloc
implementation.

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