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osvGoogleOSV:USN-5034-2
HistoryAug 10, 2021 - 5:15 p.m.

c-ares vulnerability

2021-08-1017:15:47
Google
osv.dev
4

7 High

AI Score

Confidence

Low

0.002 Low

EPSS

Percentile

52.8%

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.