PT-2022-10249 · Lrzip+1 · Lrzip+1

Clingto · Published 2022-07-26 · Updated 2022-08-02 · CVE-2021-33453

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 lrzip version 0.641

Description An issue was discovered in the ucompthread() function in stream.c at line 1538, which is a use-after-free.

Recommendations For lrzip version 0.641, consider disabling the ucompthread() function as a temporary workaround until a patch is available.

Exploit

Fix

Use After Free

Weakness Enumeration

CWE-416

Related Identifiers

CVE-2021-33453

Affected Products

Debian

Lrzip

References · 10

• 🔥 https://github.com/ckolivas/lrzip/issues/199 · Exploit
• 🔥 https://gist.github.com/Clingto/bb632c0c463f4b2c97e4f65f751c5e6d · Exploit
• https://osv.dev/vulnerability/CVE-2021-33453 · Vendor Advisory
• https://security-tracker.debian.org/tracker/CVE-2021-33453 · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2021-33453 · Vendor Advisory
• https://ubuntu.com/security/CVE-2021-33453 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-33453 · Security Note
• https://osv.dev/vulnerability/DEBIAN-CVE-2021-33453 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2021-33453 · Security Note
• https://t.me/cvenotify/34129 · Telegram Post