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
Source: ubuntu-usn
