Summary
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 2
| Release | Package | Fixed in |
|---|---|---|
| Ubuntu · 18.04 LTS 18.04:LTS | c-ares | 1.14.0-1ubuntu0.1 |
| Ubuntu · 20.04 LTS 20.04:LTS | c-ares | 1.15.0-1ubuntu0.1 |
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