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ubuntuUbuntuUSN-3673-1
HistoryJun 07, 2018 - 12:00 a.m.

Unbound vulnerability

2018-06-0700:00:00
ubuntu.com
29

5.7 Medium

AI Score

Confidence

High

0.004 Low

EPSS

Percentile

72.9%

Releases

  • Ubuntu 18.04 ESM
  • Ubuntu 17.10
  • Ubuntu 16.04 ESM
  • Ubuntu 14.04 ESM

Packages

  • unbound - validating, recursive, caching DNS resolver

Details

Ralph Dolmans and Karst Koymans discovered that Unbound did not properly
handle certain NSEC records. An attacker could use this to to prove the
non-existence (NXDOMAIN answer) of an existing wildcard record, or trick
Unbound into accepting a NODATA proof.

5.7 Medium

AI Score

Confidence

High

0.004 Low

EPSS

Percentile

72.9%