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CVE-2022-26291

Published: 28 March 2022

lrzip v0.641 was discovered to contain a multiple concurrency use-after-free between the functions zpaq_decompress_buf() and clear_rulist(). This vulnerability allows attackers to cause a Denial of Service (DoS) via a crafted Irz file.

Priority

Medium

Cvss 3 Severity Score

5.5

Score breakdown

Status

Package Release Status
lrzip
Launchpad, Ubuntu, Debian
bionic
Released (0.631-1+deb9u3build0.18.04.1)
kinetic Not vulnerable
(0.651-2)
trusty Not vulnerable
(code not present)
xenial
Released (0.621-1ubuntu0.1~esm2)
Available with Ubuntu Pro
upstream Needs triage

impish Ignored
(end of life)
focal
Released (0.631+git180528-1+deb10u1build0.20.04.1)
jammy Not vulnerable
(0.651-2)

Severity score breakdown

Parameter Value
Base score 5.5
Attack vector Local
Attack complexity Low
Privileges required None
User interaction Required
Scope Unchanged
Confidentiality None
Integrity impact None
Availability impact High
Vector CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H