Use-after-free in lrzip - CVE-2018-5747
Published: January 17, 2018 / Updated: February 16, 2021
Vulnerability identifier: #VU37629
CSH Severity: Medium
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2018-5747
CWE-ID: CWE-416
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: ckolivas (Con Kolivas)
Affected software:
lrzip
lrzip
Detailed vulnerability description
The vulnerability allows a remote non-authenticated attacker to perform a denial of service (DoS) attack.
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.
How to mitigate CVE-2018-5747
Install update from vendor's website.