Use After Free in Long Range Zip Project

CVE-2021-33453

An issue was discovered in lrzip version 0.641. There is a use-after-free in ucompthread() in stream.c:1538.

Vulnerability class: Use-After-Free

EPSS: 0.004 (27.7th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.

Affected products

Long_range_zip_project Long_range_zip — versions 0.641
N/a — versions n/a

Weakness classification (CWE)

CWE-416 — Use After Free

References

cve@mitre.org (Exploit, Third Party Advisory, x_refsource_MISC, Issue Tracking)
cve@mitre.org (Exploit, Third Party Advisory, x_refsource_MISC)

Frequently asked questions

What is CVE-2021-33453?: CVE-2021-33453 is a high-severity vulnerability in Long Range Zip Project, classified under Use After Free. CVSS score: 7.8/10. Published 2022-07-26.
How severe is CVE-2021-33453?: High severity. CVSS v3 base score is 7.8 out of 10.