SB2021061838 - Denial of service in zziplib
Published: June 18, 2021 Updated: August 21, 2023
Security Bulletin ID
SB2021061838
Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Denial of service
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Infinite loop (CVE-ID: CVE-2020-18442)
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.
Remediation
Install update from vendor's website.
References
- 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/