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TI-2020-13391 Aliases CVE-2020-18442GHSA-g2w2-2g9v-p7fp

Infinite Loop in zziplib v0.13.69 allows remote attackers to cause a denial of service…

Priority LOW 17CWE-835Published · Updated

Key facts

Attack vector
Local
Privileges required
Low
User interaction
None
Attack complexity
Low
Impact type
Denial of service
Confidentiality · integrity · availability
None · None · Low
Fix status
Fixed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA and Red Hat. Impact type from CWE-835.

Summary

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".

Why it matters now

EPSS 0.00745 55th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix Fixed Red Hat: 1 advisory

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
——all versions—No fix listedCNA
  • — Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 4

CPEVersionsRoleVendor
cpe:2.3:a:gdraheim:zziplib:0.13.69:*:*:*:*:*:*:*0.13.69Vulnerablegdraheim
cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*9.0VulnerableDebian
cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:*34VulnerableFedoraproject
cpe:2.3:o:fedoraproject:fedora:35:*:*:*:*:*:*:*35VulnerableFedoraproject
  • cpe:2.3:a:gdraheim:zziplib:0.13.69:*:*:*:*:*:*:* Versions 0.13.69 Vulnerable ·gdraheim
  • cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:* Versions 9.0 Vulnerable ·Debian
  • cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:* Versions 34 Vulnerable ·Fedoraproject
  • cpe:2.3:o:fedoraproject:fedora:35:*:*:*:*:*:*:* Versions 35 Vulnerable ·Fedoraproject

Remediation

Red Hat 1 advisory

  • RHSA-2021:4316 Released 2021-11-09 · Red Hat rating Low
    zziplib security update
    • Red Hat CodeReady Linux Builder (v. 8) zziplib-devel-0.13.68-9.el8
    • Red Hat Enterprise Linux AppStream (v. 8) zziplib-0.13.68-9.el8, zziplib-utils-0.13.68-9.el8

Vendor assessments

Red Hat

Red Hat rating: Low. Red Hat's page for this CVE →

ProductStatusPlan or fix
Red Hat CodeReady Linux Builder (v. 8)Fixed RHSA-2021:4316
Red Hat Enterprise Linux AppStream (v. 8)Fixed RHSA-2021:4316
Not affected: 2 products
  • Red Hat Enterprise Linux 7
  • Red Hat Enterprise Linux 9

Timeline

  1. 2026-10-02 Threatist record created from CVE-2020-18442
  2. 2026-10-03 Alias added: GHSA-g2w2-2g9v-p7fp

References

Exploit 1

Advisory 3

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences