๐ USN-2892-1: nginx vulnerabilities
๐ก Newskategorie: Unix Server
๐ Quelle: ubuntu.com
Ubuntu Security Notice USN-2892-1
9th February, 2016
nginx vulnerabilities
A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 15.10
- Ubuntu 14.04 LTS
Summary
Several security issues were fixed in nginx.
Software description
- nginx - small, powerful, scalable web/proxy server
Details
It was discovered that nginx incorrectly handled certain DNS server
responses when the resolver is enabled. A remote attacker could possibly
use this issue to cause nginx to crash, resulting in a denial of service.
(CVE-2016-0742)
It was discovered that nginx incorrectly handled CNAME response processing
when the resolver is enabled. A remote attacker could use this issue to
cause nginx to crash, resulting in a denial of service, or possibly execute
arbitrary code. (CVE-2016-0746)
It was discovered that nginx incorrectly handled CNAME resolution when
the resolver is enabled. A remote attacker could possibly use this issue to
cause nginx to consume resources, resulting in a denial of service.
(CVE-2016-0747)
Update instructions
The problem can be corrected by updating your system to the following package version:
- Ubuntu 15.10:
- nginx-extras 1.9.3-1ubuntu1.1
- nginx-full 1.9.3-1ubuntu1.1
- nginx-core 1.9.3-1ubuntu1.1
- nginx-light 1.9.3-1ubuntu1.1
- Ubuntu 14.04 LTS:
- nginx-extras 1.4.6-1ubuntu3.4
- nginx-full 1.4.6-1ubuntu3.4
- nginx-core 1.4.6-1ubuntu3.4
- nginx-light 1.4.6-1ubuntu3.4
- nginx-naxsi 1.4.6-1ubuntu3.4
To update your system, please follow these instructions: https://wiki.ubuntu.com/Security/Upgrades.
In general, a standard system update will make all the necessary changes.
References
CVE-2016-0742, CVE-2016-0746, CVE-2016-0747
...