Infinite loop in ZZIPlib - CVE-2020-18442
Published: August 21, 2023
Vulnerability identifier: #VU79772
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2020-18442
CWE-ID: CWE-835
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: zziplib.sourceforge.net
Affected software:
ZZIPlib
ZZIPlib
Detailed vulnerability description
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to infinite loop within the unzzip_cat_file() function. A remote attacker can consume all available system resources and cause denial of service conditions.
How to mitigate CVE-2020-18442
Install update from vendor's website.
Sources
- https://github.com/gdraheim/zziplib/issues/68
- https://lists.debian.org/debian-lts-announce/2021/12/msg00021.html
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/TCFYD46OY4VAGJ4UX7IFOH5SHD4UW4ZA/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/VVANTEBDQGOIPC5KCEVAGA5KT4KKTGWB/