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CVE-2023-39741

Published: 17 August 2023

lrzip v0.651 was discovered to contain a heap overflow via the libzpaq::PostProcessor::write(int) function at /libzpaq/libzpaq.cpp. This vulnerability allows attackers to cause a Denial of Service (DoS) via a crafted file.

Notes

AuthorNote
rodrigo-zaiden
reported in lrzip-next that is a "Updated and Enhanced
version of ckolivas' lrzip project", but the affected source can also be
found in lrzip.

Priority

Medium

Cvss 3 Severity Score

5.5

Score breakdown

Status

Package Release Status
lrzip
Launchpad, Ubuntu, Debian
bionic Needs triage

focal Needs triage

jammy Needs triage

lunar Ignored
(end of life, was needs-triage)
mantic Needs triage

noble Needs triage

trusty Needs triage

upstream Needs triage

xenial Needs triage

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