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FreeBSD: VID-F4464E49-7E04-11EE-8E38-002590C1F29C (CVE-2023-5978): FreeBSD -- Incorrect libcap_net limitation list manipulation

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FreeBSD: VID-F4464E49-7E04-11EE-8E38-002590C1F29C (CVE-2023-5978): FreeBSD -- Incorrect libcap_net limitation list manipulation

Severity
4
CVSS
(AV:L/AC:M/Au:N/C:P/I:P/A:P)
Published
11/08/2023
Created
11/14/2023
Added
11/09/2023
Modified
11/20/2023

Description

In versions of FreeBSD 13-RELEASE before 13-RELEASE-p5, under certain circumstances the cap_net libcasper(3) service incorrectly validates that updated constraints are strictly subsets of the active constraints.  When only a list of resolvable domain names was specified without setting any other limitations, an application could submit a new list of domains including include entries not previously listed.  This could permit the application to resolve domain names that were previously restricted.

Solution(s)

  • freebsd-upgrade-base-13_2-release-p5

References

  • CVE-2023-5978

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