Division by zero in lrzip - CVE-2017-8842
Published: May 8, 2017 / Updated: February 16, 2021
Vulnerability identifier: #VU39065
CSH Severity: Medium
CVSS v4: 6.7 [CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2017-8842
CWE-ID: CWE-369
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to divide-by-zero error within The bufRead::get() function in libzpaq/libzpaq.h in liblrzip.so in lrzip 0.631. A remote attacker can perform a denial of service (divide-by-zero error and application crash) via a crafted archive.
Affected software
lrzip
Gentoo Linux
Gentoo Linux
How to mitigate CVE-2017-8842
Install update from vendor's website.
lrzip - update to 0.640