What’s Vulnerable › Vulnerabilities

CVE-2020-18442

• Severity: low (CVSS 3.3 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.7% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2021-06-18 · updated 2026-06-17
• Weakness: CWE-835

Description

Infinite Loop in zziplib v0.13.69 allows remote attackers to cause a denial of service via the return value "zzip_file_read" in the function "unzzip_cat_file".

Affected products

• Debian Linux: 9.0
• Fedoraproject Fedora: 34, 35
• gdraheim zziplib: 0.13.69

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%40lists.fedoraproject.org/message/TCFYD46OY4VAGJ4UX7IFOH5SHD4UW4ZA/
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/VVANTEBDQGOIPC5KCEVAGA5KT4KKTGWB/
• 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%40lists.fedoraproject.org/message/TCFYD46OY4VAGJ4UX7IFOH5SHD4UW4ZA/
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/VVANTEBDQGOIPC5KCEVAGA5KT4KKTGWB/

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