PT-2018-13927 · Freebsd · Freebsd

Published 2018-09-28 · Updated 2018-11-23 · CVE-2018-17154

Positive Technologies (AI Summary)

CVSS v3.1

5.5

Medium

Base vector

AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Name of the Vulnerable Software and Affected Versions FreeBSD versions prior to 11.2-STABLE(r338987) FreeBSD versions prior to 11.2-RELEASE-p4 FreeBSD versions prior to 11.1-RELEASE-p15

Description The issue is caused by insufficient memory checking in the freebsd4 getfsstat system call, which can lead to a NULL pointer dereference. This can result in a denial of service. Unprivileged authenticated local users may be able to exploit this issue.

Recommendations For versions prior to 11.2-STABLE(r338987), update to 11.2-STABLE(r338987) or later. For versions prior to 11.2-RELEASE-p4, update to 11.2-RELEASE-p4 or later. For versions prior to 11.1-RELEASE-p15, update to 11.1-RELEASE-p15 or later.

Fix

NULL Pointer Dereference

Weakness Enumeration

CWE-476

Related Identifiers

CVE-2018-17154

Affected Products

Freebsd

References · 3

• https://security.freebsd.org/advisories/FreeBSD-EN-18:10.syscall.asc · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2018-17154 · Security Note
• https://osv.dev/vulnerability/CVE-2018-17154 · Vendor Advisory