The following two updates has been released for Debian:

[DSA 3306-1] pdns security update
[DSA 3307-1] pdns-recursor security update

[DSA 3306-1] pdns security update

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Debian Security Advisory DSA-3306-1 security@debian.org
https://www.debian.org/security/ Alessandro Ghedini
July 09, 2015 https://www.debian.org/security/faq
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Package : pdns
CVE ID : CVE-2015-1868

Toshifumi Sakaguchi discovered that the patch applied to pdns, an
authoritative DNS server, fixing CVE-2015-1868, was insufficient in
some cases, allowing remote attackers to cause a denial of service
(service-affecting CPU spikes and in some cases a crash).

For the stable distribution (jessie), this problem has been fixed in
version 3.4.1-4+deb8u2.

For the testing distribution (stretch), this problem has been fixed
in version 3.4.5-1.

For the unstable distribution (sid), this problem has been fixed in
version 3.4.5-1.

We recommend that you upgrade your pdns 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/

[DSA 3307-1] pdns-recursor security update

- -------------------------------------------------------------------------
Debian Security Advisory DSA-3307-1 security@debian.org
https://www.debian.org/security/ Alessandro Ghedini
July 09, 2015 https://www.debian.org/security/faq
- -------------------------------------------------------------------------

Package : pdns-recursor
CVE ID : CVE-2015-1868

Toshifumi Sakaguchi discovered that the patch applied to pdns-recursor,
a recursive DNS server, fixing CVE-2015-1868, was insufficient in some
cases, allowing remote attackers to cause a denial of service
(service-affecting CPU spikes and in some cases a crash).

For the stable distribution (jessie), this problem has been fixed in
version 3.6.2-2+deb8u2.

For the testing distribution (stretch), this problem has been fixed
in version 3.7.3-1.

For the unstable distribution (sid), this problem has been fixed in
version 3.7.3-1.

We recommend that you upgrade your pdns-recursor 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/