PT-2020-9768 · Freebsd · Freebsd

Published 2020-05-12 · Updated 2022-04-26 · CVE-2019-15880

Positive Technologies (AI Summary)

CVSS v3.1

9.8

Critical

Base vector

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

Name of the Vulnerable Software and Affected Versions FreeBSD versions 12.1-STABLE before r356911 FreeBSD versions 12.1-RELEASE before p5

Description The issue arises from insufficient checking in the cryptodev module, which allocates the size of a kernel buffer based on a user-supplied length. This allows an unprivileged process to trigger a kernel panic.

Recommendations For FreeBSD versions 12.1-STABLE before r356911, update to a version after r356911 to resolve the issue. For FreeBSD versions 12.1-RELEASE before p5, update to p5 or later to resolve the issue. As a temporary workaround, consider restricting access to the cryptodev module to minimize the risk of exploitation.

Fix

Buffer Overflow

RCE

Weakness Enumeration

CWE-119

CWE-20

Related Identifiers

CVE-2019-15880

FREEBSD-SA-20_16

Affected Products

Freebsd

References · 7

• https://osv.dev/vulnerability/CVE-2019-15880 · Vendor Advisory
• https://security.freebsd.org/advisories/FreeBSD-SA-20:16.cryptodev.asc · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2019-15880 · Security Note
• https://t.me/cibsecurity/12043 · Telegram Post
• https://freebsd.org/security/advisories/FreeBSD-SA-20:16.cryptodev.asc · Note
• https://security.netapp.com/advisory/ntap-20200518-0008 · Note
• https://t.me/cvenotify/3743 · Telegram Post