Summary
USN-5034-1 fixed a vulnerability in c-ares. This update provides
the corresponding update for Ubuntu 16.04 ESM.
Original advisory details:
Philipp Jeitner and Haya Shulman discovered that c-ares incorrectly
validated certain hostnames returned by DNS servers. A remote attacker
could possibly use this issue to perform Domain Hijacking attacks.
Fixed packages 1
| Release | Package | Fixed in |
|---|---|---|
| Ubuntu · Pro 16.04 LTS Pro:16.04:LTS | c-ares | 1.10.0-3ubuntu0.2+esm1 |
Vulnerabilities 1
-
Unscored —
A flaw was found in c-ares library, where a missing input validation check of host names returned by DNS (Domain Name S…
References
-
report
https://ubuntu.com/security/CVE-2021-3672