USN-4967-2: nginx vulnerability
- Canonical Ubuntu 14.04
- Canonical Ubuntu 16.04
USN-4967-1 fixed a vulnerability in nginx. This update provides the corresponding update for Ubuntu 14.04 ESM and 16.04 ESM.
Original advisory details:
Luis Merino, Markus Vervier, and Eric Sesterhenn discovered that nginx incorrectly handled responses to the DNS resolver. A remote attacker could use this issue to cause nginx to crash, resulting in a denial of service, or possibly execute arbitrary code.
CVEs contained in this USN include: CVE-2021-23017
Severity is medium unless otherwise noted.
- 2.7.x versions prior to 2.7.25
- 2.8.x versions prior to 2.8.16
- 2.9.x versions prior to 2.9.12
- 2.10.x versions prior to 2.10.3
Users of affected products are strongly encouraged to follow the mitigation below. Upgrade VMware Tanzu products that use earlier versions of CF components to new Tanzu releases using new versions linked above. On the Tanzu Network product page for each release, check the Depends On section and/or Release Notes for this information. Releases that have fixed this issue include:
2021-06-15: Initial vulnerability report published.