CVE-2023-5978 Incorrect libcap_net limitation list manipulation

2023-11-0808:52:46

CWE-269

freebsd

www.cve.org

cve-2023-5978

freebsd 13-release

libcasper manipulation

domain names restrictions

0.0005 Low

EPSS

Percentile

17.8%

JSON

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.

CNA Affected

[
  {
    "defaultStatus": "unknown",
    "modules": [
      "libcap_net"
    ],
    "product": "FreeBSD",
    "vendor": "FreeBSD",
    "versions": [
      {
        "lessThan": "p5",
        "status": "affected",
        "version": "13.2-RELEASE",
        "versionType": "release"
      }
    ]
  }
]