CVE-2023-5978

High

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.

SeverityHigh

CVSS7.5

Exploit probability—

Product

Freebsd

PublishedNov 8, 2023

First seenNov 8, 2023

Weakness typeCWE-269Improper privilege management

How to fix

Update

freebsd freebsd13.2 or later

Vendor advisories

security.freebsd.org/advisories/FreeBSD-SA-23:16.cap_net.asc

Affected products

Product	Affected versions	Fixed in
freebsd freebsd	13.0 ≤ v < 13.2, 13.2	13.2

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