Linux Security
Linux Security
Linux Security

Debian: DSA-3764-1: pdns security update

Date 13 Jan 2017
190
Posted By LinuxSecurity Advisories
Multiple vulnerabilities have been discovered in pdns, an authoritative DNS server. The Common Vulnerabilities and Exposures project identifies the following problems:

- -------------------------------------------------------------------------
Debian Security Advisory DSA-3764-1                   This email address is being protected from spambots. You need JavaScript enabled to view it.
https://www.debian.org/security/                     Salvatore Bonaccorso
January 13, 2017                      https://www.debian.org/security/faq
- -------------------------------------------------------------------------

Package        : pdns
CVE ID         : CVE-2016-2120 CVE-2016-7068 CVE-2016-7072 CVE-2016-7073 
                 CVE-2016-7074

Multiple vulnerabilities have been discovered in pdns, an authoritative
DNS server. The Common Vulnerabilities and Exposures project identifies
the following problems:

CVE-2016-2120

    Mathieu Lafon discovered that pdns does not properly validate
    records in zones. An authorized user can take advantage of this flaw
    to crash server by inserting a specially crafted record in a zone
    under their control and then sending a DNS query for that record.

CVE-2016-7068

    Florian Heinz and Martin Kluge reported that pdns parses all records
    present in a query regardless of whether they are needed or even
    legitimate, allowing a remote, unauthenticated attacker to cause an
    abnormal CPU usage load on the pdns server, resulting in a partial
    denial of service if the system becomes overloaded.

CVE-2016-7072

    Mongo discovered that the webserver in pdns is susceptible to a
    denial-of-service vulnerability. A remote, unauthenticated attacker
    to cause a denial of service by opening a large number of f TCP
    connections to the web server.

CVE-2016-7073 / CVE-2016-7074

    Mongo discovered that pdns does not sufficiently validate TSIG
    signatures, allowing an attacker in position of man-in-the-middle to
    alter the content of an AXFR.

For the stable distribution (jessie), these problems have been fixed in
version 3.4.1-4+deb8u7.

For the unstable distribution (sid), these problems have been fixed in
version 4.0.2-1.

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/

Mailing list: This email address is being protected from spambots. You need JavaScript enabled to view it.

LinuxSecurity Poll

How frequently do you patch/update your system?

No answer selected. Please try again.
Please select either existing option or enter your own, however not both.
Please select minimum 0 answer(s) and maximum 3 answer(s).
/main-polls/52-how-frequently-do-you-patch-update-your-system?task=poll.vote&format=json
52
radio
[{"id":"179","title":"As soon as patches\/updates are released - I track advisories for my distro(s) diligently","votes":"45","type":"x","order":"1","pct":81.82,"resources":[]},{"id":"180","title":"Every so often, when I think of it","votes":"5","type":"x","order":"2","pct":9.09,"resources":[]},{"id":"181","title":"Hardly ever","votes":"5","type":"x","order":"3","pct":9.09,"resources":[]}] ["#ff5b00","#4ac0f2","#b80028","#eef66c","#60bb22","#b96a9a","#62c2cc"] ["rgba(255,91,0,0.7)","rgba(74,192,242,0.7)","rgba(184,0,40,0.7)","rgba(238,246,108,0.7)","rgba(96,187,34,0.7)","rgba(185,106,154,0.7)","rgba(98,194,204,0.7)"] 350

Please vote first in order to view vote results.

VOTE ON THE POLL PAGE


VIEW MORE POLLS

bottom 200

Please enable / Bitte aktiviere JavaScript!
Veuillez activer / Por favor activa el Javascript![ ? ]

We use cookies to provide and improve our services. By using our site, you consent to our Cookie Policy.