CVE-2025-0662

Medium

Description

In some cases, the ktrace facility will log the contents of kernel structures to userspace. In one such case, ktrace dumps a variable-sized sockaddr to userspace. There, the full sockaddr is copied, even when it is shorter than the full size. This can result in up to 14 uninitialized bytes of kernel memory being copied out to userspace. It is possible for an unprivileged userspace program to leak 14 bytes of a kernel heap allocation to userspace.

SeverityMedium

CVSS4.9

Exploit probability—

Product

FreeBSD

PublishedJan 30, 2025

First seenJan 30, 2025

Weakness typeCWE-122CWE-122

How to fix

Update

FreeBSD FreeBSDp1 or later

Vendor advisories

security.freebsd.org/advisories/FreeBSD-SA-25:04.ktrace.asc

Affected products

Product	Affected versions	Fixed in
FreeBSD FreeBSD	14.2-RELEASE ≤ v < p1	p1

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