CVE-2018-5747

Publication date 17 January 2018

Last updated 25 August 2025

Ubuntu priority

Medium

Why this priority?

Cvss 3 Severity Score

5.5 · Medium

Score breakdown

Description

In Long Range Zip (aka lrzip) 0.631, there is a use-after-free in the ucompthread function (stream.c). Remote attackers could leverage this vulnerability to cause a denial of service via a crafted lrz file.

Status

Package Ubuntu Release Status
lrzip 22.04 LTS jammy
Not affected
21.10 impish
Not affected
21.04 hirsute
Not affected
20.10 groovy
Not affected
20.04 LTS focal
Not affected
19.10 eoan
Not affected
19.04 disco
Not affected
18.10 cosmic
Not affected
18.04 LTS bionic
Fixed 0.631-1+deb9u1build0.18.04.1
17.10 artful Ignored end of life
16.04 LTS xenial
Fixed 0.621-1ubuntu0.1~esm1
14.04 LTS trusty
Fixed 0.616-1ubuntu0.1~esm1

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Severity score breakdown

Parameter Value
Base score 5.5 · Medium
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

References

Related Ubuntu Security Notices (USN)

    • USN-5171-1
    • Long Range ZIP vulnerabilities
    • 6 December 2021
    • USN-5171-2
    • Long Range ZIP vulnerabilities
    • 9 December 2021

Other references