USN-3812-1: nginx vulnerabilities
nginx vulnerabilities
A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 18.10
- Ubuntu 18.04 LTS
- Ubuntu 16.04 LTS
- 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 the HTTP/2 implementation.
A remote attacker could possibly use this issue to cause excessive memory
consumption, leading to a denial of service. This issue only affected
Ubuntu 16.04 LTS, Ubuntu 18.04 LTS and Ubuntu 18.10. (CVE-2018-16843)
Gal Goldshtein discovered that nginx incorrectly handled the HTTP/2
implementation. A remote attacker could possibly use this issue to cause
excessive CPU usage, leading to a denial of service. This issue only
affected Ubuntu 16.04 LTS, Ubuntu 18.04 LTS and Ubuntu 18.10.
(CVE-2018-16844)
It was discovered that nginx incorrectly handled the ngx_http_mp4_module
module. A remote attacker could possibly use this issue with a specially
crafted mp4 file to cause nginx to crash, stop responding, or access
arbitrary memory. (CVE-2018-16845)
Update instructions
The problem can be corrected by updating your system to the following package versions:
- Ubuntu 18.10
- nginx-common – 1.15.5-0ubuntu2.1
- nginx-core – 1.15.5-0ubuntu2.1
- nginx-extras – 1.15.5-0ubuntu2.1
- nginx-full – 1.15.5-0ubuntu2.1
- nginx-light – 1.15.5-0ubuntu2.1
- Ubuntu 18.04 LTS
- nginx-common – 1.14.0-0ubuntu1.2
- nginx-core – 1.14.0-0ubuntu1.2
- nginx-extras – 1.14.0-0ubuntu1.2
- nginx-full – 1.14.0-0ubuntu1.2
- nginx-light – 1.14.0-0ubuntu1.2
- Ubuntu 16.04 LTS
- nginx-common – 1.10.3-0ubuntu0.16.04.3
- nginx-core – 1.10.3-0ubuntu0.16.04.3
- nginx-extras – 1.10.3-0ubuntu0.16.04.3
- nginx-full – 1.10.3-0ubuntu0.16.04.3
- nginx-light – 1.10.3-0ubuntu0.16.04.3
- Ubuntu 14.04 LTS
- nginx-common – 1.4.6-1ubuntu3.9
- nginx-core – 1.4.6-1ubuntu3.9
- nginx-extras – 1.4.6-1ubuntu3.9
- nginx-full – 1.4.6-1ubuntu3.9
- nginx-light – 1.4.6-1ubuntu3.9
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: USN-3812-1: nginx vulnerabilities
