[Pdns-announce] PowerDNS Authoritative Server 3.4.11 released

[Pieter Lexis]

Hello everyone,

Today, we are releasing version 3.4.11 of the PowerDNS Authoritative Server. This release fixes several scurity issues that were reported to PowerDNS.

It concerns the following security advisories:

 * 2016-02: Crafted queries can cause abnormal CPU usage[1]
 * 2016-03: Denial of service via the web server[2]
 * 2016-04: Insufficient validation of TSIG signatures[3]
 * 2016-05: Crafted zone record can cause a denial of service[4]

For those who cannot update, minimal patches are available[5,6,7,8]

The full changelog is online[9] and reproduced here:

 * Don't parse spurious RRs in queries when we don't need them (Security Advisory 2016-02)
 * Don't exit if the webserver can't accept a connection (Security Advisory 2016-03)
 * Fix TSIG computation (Security Advisory 2016-04)
 * Correctly check unknown record content size (Security Advisory 2016-05)
 * Fix a possible memory leak in the webserver
 * Lowercase the qname in getDomainInfo() and isMaster()
 * Don't look up the packet cache for TSIG-enabled queries
 * Fix a stack-based off-by-one write in the HTTP remote backend

Tarballs with sources are available (with signatures)[10,11] and we urge all users to upgrade to this new version.

Best regards,

The PowerDNS team.

1 - https://doc.powerdns.com/3/security/powerdns-advisory-2016-02
2 - https://doc.powerdns.com/3/security/powerdns-advisory-2016-03
3 - https://doc.powerdns.com/3/security/powerdns-advisory-2016-04
4 - https://doc.powerdns.com/3/security/powerdns-advisory-2016-05
5 - https://downloads.powerdns.com/patches/2016-02
6 - https://downloads.powerdns.com/patches/2016-03
7 - https://downloads.powerdns.com/patches/2016-04
8 - https://downloads.powerdns.com/patches/2016-05
9 - https://doc.powerdns.com/3/changelog/#powerdns-authoritative-server-3411
10 - https://downloads.powerdns.com/releases/pdns-3.4.11.tar.bz2
11 - https://downloads.powerdns.com/releases/pdns-3.4.11.tar.bz2.sig

-- 
Pieter Lexis
PowerDNS.COM BV -- https://www.powerdns.com
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