It was discovered that nbd-server, the server for the Network Block Device protocol, did incorrect parsing of the access control lists, allowing access to any hosts with an IP address sharing a prefix with an allowed address.

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Debian Security Advisory DSA-2806-1                   This email address is being protected from spambots. You need JavaScript enabled to view it.
http://www.debian.org/security/                           Thijs Kinkhorst
November 29, 2013                      http://www.debian.org/security/faq
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Package        : nbd
Vulnerability  : privilege escalation
Problem type   : remote
Debian-specific: no

It was discovered that nbd-server, the server for the Network Block
Device protocol, did incorrect parsing of the access control lists,
allowing access to any hosts with an IP address sharing a prefix with
an allowed address.

For the oldstable distribution (squeeze), this problem has been fixed in
version 1:2.9.16-8+squeeze1.

For the stable distribution (wheezy), this problem has been fixed in
version 1:3.2-4~deb7u4.

For the unstable distribution (sid), this problem will be fixed soon.

We recommend that you upgrade your nbd packages.

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

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