PT-2020-5954 · Freebsd · Freebsd+1

Duncan Overbruck · Published 2020-01-28 · Updated 2020-03-05 · CVE-2020-7450

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 r357213 FreeBSD versions 12.1-RELEASE before 12.1-RELEASE-p2 FreeBSD versions 12.0-RELEASE before 12.0-RELEASE-p13 FreeBSD versions 11.3-STABLE before r357214 FreeBSD versions 11.3-RELEASE before 11.3-RELEASE-p6

Description: The issue is related to URL handling in libfetch with URLs containing username and/or password components, which is vulnerable to a heap buffer overflow. This can allow program misbehavior or malicious code execution. The vulnerability may allow a remote attacker to impact the confidentiality, integrity, and availability of protected information.

Recommendations: For FreeBSD versions 12.1-STABLE before r357213, update to a version after r357213. For FreeBSD versions 12.1-RELEASE before 12.1-RELEASE-p2, update to 12.1-RELEASE-p2 or later. For FreeBSD versions 12.0-RELEASE before 12.0-RELEASE-p13, update to 12.0-RELEASE-p13 or later. For FreeBSD versions 11.3-STABLE before r357214, update to a version after r357214. For FreeBSD versions 11.3-RELEASE before 11.3-RELEASE-p6, update to 11.3-RELEASE-p6 or later.

Fix

Memory Corruption

Weakness Enumeration

CWE-787

Related Identifiers

BDU:2021-02128

CVE-2020-7450

FREEBSD-SA-20_01

Affected Products

Freebsd

Libfetch

References · 7

• https://security.freebsd.org/advisories/FreeBSD-SA-20:01.libfetch.asc · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2020-7450 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2020-7450 · Security Note
• https://safe-surf.ru/specialists/bulletins-nkcki/659499 · Security Note
• https://bdu.fstec.ru/vul/2021-02128 · Security Note
• https://securitylab.ru/vulnerability/504492.php · Note
• https://freebsd.org/security/advisories/FreeBSD-SA-20:01.libfetch.asc · Note