Incorrect libcap_net limitation list manipulation
CVE-2023-5978

7.5HIGH

Key Information:

Vendor

FreeBSD

Status
FreeBSD
Vendor
CVE Published:
8 November 2023

What is CVE-2023-5978?

In versions of FreeBSD 13-RELEASE prior to 13-RELEASE-p5, a flaw in the cap_net service's validation process allows applications to bypass previously established domain name restrictions. This vulnerability arises when resolvable domain names are specified without additional limitations, permitting new entries that may include domains not previously permitted. As a result, unauthorized applications could potentially resolve previously restricted domain names, posing significant security risks.

Affected Version(s)

FreeBSD 13.2-RELEASE

References

https://security.freebsd.org/advisories/FreeBSD-SA-23:16....
vendor-advisory
https://security.netapp.com/advisory/ntap-20231214-0003/

CVSS V3.1

Score:
7.5
Severity:
HIGH
Confidentiality:
None
Integrity:
High
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

Shawn Webb
Mariusz Zaborski
.