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USN-3812-1: nginx vulnerabilities

7 November 2018

Several security issues were fixed in nginx.

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Releases

Packages

  • 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)

Reduce your security exposure

Ubuntu Pro provides ten-year security coverage to 25,000+ packages in Main and Universe repositories, and it is free for up to five machines.

Learn more about Ubuntu Pro