PT-2021-6505 · Libpff · Libpff

Hongxuchen · Published 2021-08-19 · Updated 2021-08-23 · CVE-2020-18897

Positive Technologies (AI Summary)

CVSS v3.1

7.8

High

Base vector

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

Name of the Vulnerable Software and Affected Versions Libpff versions prior to 20180623

Description The issue is related to an use-after-free vulnerability in the libpff item tree create node function, which allows attackers to cause a denial of service or execute arbitrary code via a crafted pff file. This vulnerability can also lead to unauthorized access to confidential data and disruption of data integrity.

Recommendations For versions prior to 20180623, update to a version released after 20180623 to resolve the issue. As a temporary workaround, consider restricting the use of the libpff item tree create node function until a patch is available. Avoid using crafted pff files to minimize the risk of exploitation.

Exploit

Fix

Use After Free

Weakness Enumeration

CWE-416

Related Identifiers

BDU:2022-01763

CVE-2020-18897

Affected Products

Libpff

References · 14

• 🔥 https://github.com/libyal/libpff/issues/62 · Exploit
• 🔥 https://github.com/libyal/libpff/issues/61 · Exploit
• https://nvd.nist.gov/vuln/detail/CVE-2020-18897 · Security Note
• https://ubuntu.com/security/CVE-2020-18897 · Vendor Advisory
• https://bdu.fstec.ru/vul/2022-01763 · Security Note
• https://osv.dev/vulnerability/CVE-2020-18897 · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2020-18897 · Vendor Advisory
• https://osv.dev/vulnerability/DEBIAN-CVE-2020-18897 · Vendor Advisory
• https://security-tracker.debian.org/tracker/CVE-2020-18897 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2020-18897 · Security Note
• https://github.com/libyal/libpff/commit/effae88adfc9def45be0bb7ff27d20ce133d8c7c · Note
• https://t.me/cvenotify/19941 · Telegram Post
• https://t.me/cibsecurity/27627 · Telegram Post
• https://t.me/cvenotify/19798 · Telegram Post