CVEvulnerability

CVE-2020-7462

5.5 MEDIUM Published 2021-03-26 Modified 2026-06-17 Official page ↗
Status
Modified
Published
2021-03-26
Last modified
2026-06-17
Assigner
[email protected]
CVSS 3.1 ([email protected])
5.5 MEDIUM — CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CVSS 2.0 ([email protected])
4.9 MEDIUM — AV:L/AC:L/Au:N/C:N/I:N/A:C
Weaknesses
CWE-416

Description

In 11.4-PRERELEASE before r360733 and 11.3-RELEASE before p13, improper mbuf handling in the kernel causes a use-after-free bug by sending IPv6 Hop-by-Hop options over the loopback interface. The use-after-free situation may result in unintended kernel behaviour including a kernel panic.

Affected configurations

• freebsd freebsd 11.3 • freebsd freebsd 11.4

Related

Weakness · CWE (1)

References