PT-2020-19590 · Freebsd · Freebsd

Lucas Leong + 1 · Published 2020-05-12 · Updated 2022-04-26 · CVE-2020-7454

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 11.3-RELEASE through 11.3-RELEASE p8 FreeBSD versions 11.4-BETA1 through 11.4-BETA1 p0 FreeBSD versions 11.4-STABLE through 11.4-STABLE r360970 FreeBSD versions 12.1-RELEASE through 12.1-RELEASE p4 FreeBSD versions 12.1-STABLE through 12.1-STABLE r360970

Description The issue arises from libalias not properly validating packet length, which can lead to modules causing an out of bounds read/write condition if no checking was built into the module. This can result in a remote code execution vulnerability.

Recommendations For FreeBSD versions 11.3-RELEASE through 11.3-RELEASE p8, update to p9 or later. For FreeBSD versions 11.4-BETA1 through 11.4-BETA1 p0, update to p1 or later. For FreeBSD versions 11.4-STABLE through 11.4-STABLE r360970, update to r360971 or later. For FreeBSD versions 12.1-RELEASE through 12.1-RELEASE p4, update to p5 or later. For FreeBSD versions 12.1-STABLE through 12.1-STABLE r360970, update to r360971 or later.

Fix

Memory Corruption

RCE

Weakness Enumeration

CWE-787

CWE-20

Related Identifiers

CVE-2020-7454

FREEBSD-SA-20_12

ZDI-20-659

ZDI-20-660

Affected Products

Freebsd

References · 11

• https://safe-surf.ru/specialists/bulletins-nkcki/650927 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2020-7454 · Security Note
• https://osv.dev/vulnerability/CVE-2020-7454 · Vendor Advisory
• https://zerodayinitiative.com/advisories/ZDI-20-659 · Security Note
• https://zerodayinitiative.com/advisories/ZDI-20-660 · Security Note
• https://safe-surf.ru/specialists/bulletins-nkcki/650893 · Security Note
• https://security.freebsd.org/advisories/FreeBSD-SA-20:12.libalias.asc · Vendor Advisory
• https://t.me/cvenotify/3746 · Telegram Post
• https://freebsd.org/security/advisories/FreeBSD-SA-20:12.libalias.asc · Note
• https://security.netapp.com/advisory/ntap-20200518-0005 · Note
• https://t.me/cybersecuritytechnologies/1352 · Telegram Post