CVE-2020-18442
First published: Fri Jun 18 2021(Updated: )
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".
Credit: cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| debian/zziplib | 0.13.62-3.2+deb10u1 0.13.62-3.3+deb11u1 0.13.72+dfsg.1-1.1 | |
| ubuntu/zziplib | <0.13.72+dfsg.1-1 | 0.13.72+dfsg.1-1 |
| ubuntu/zziplib | <0.13.62-3.1ubuntu0.18.04.1+ | 0.13.62-3.1ubuntu0.18.04.1+ |
| ubuntu/zziplib | <0.13.62-3.2ubuntu1.1 | 0.13.62-3.2ubuntu1.1 |
| ubuntu/zziplib | <0.13.62-3ubuntu0.16.04.2+ | 0.13.62-3ubuntu0.16.04.2+ |
| zziplib | =0.13.69 | |
| Debian Linux | =9.0 | |
| Red Hat Fedora | =34 | |
| Red Hat Fedora | =35 |
Never miss a vulnerability like this again
Sign up to SecAlerts for real-time vulnerability data matched to your software, aggregated from hundreds of sources.
Reference Links
- 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/VVANTEBDQGOIPC5KCEVAGA5KT4KKTGWB/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/TCFYD46OY4VAGJ4UX7IFOH5SHD4UW4ZA/
- https://launchpad.net/bugs/cve/CVE-2020-18442
- 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/commit/ac9ae39ef419e9f0f83da1e583314d8c7cda34a6
- https://github.com/gdraheim/zziplib/commit/7e786544084548da7fcfcd9090d3c4e7f5777f7e
- https://github.com/gdraheim/zziplib/commit/d453977f59ca59c61bf59dec28dd724498828f2a
- https://github.com/gdraheim/zziplib/commit/0a9db9ded9d15fbdb63bf5cf451920d0a368c00e
- https://github.com/gdraheim/zziplib/commit/a34a96fbda1e58fbec5c79f4c0b5063e031ce11d
- https://github.com/gdraheim/zziplib/commit/fa1f78abe1b08544061204019016809664f2618c
- https://github.com/gdraheim/zziplib/commit/f7a6fa9f0c29aecb4c2299568ed2e6094c34aca7
- https://security-tracker.debian.org/tracker/CVE-2020-18442
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-18442
- https://ubuntu.com/security/notices/USN-6298-1
- https://nvd.nist.gov/vuln/detail/CVE-2020-18442
- https://ubuntu.com/security/CVE-2020-18442
Frequently Asked Questions
What is the severity of CVE-2020-18442?
CVE-2020-18442 is identified as a denial of service vulnerability due to an infinite loop in zziplib.
How do I fix CVE-2020-18442?
To resolve CVE-2020-18442, upgrade zziplib to versions 0.13.62-3.2+deb10u1, 0.13.62-3.3+deb11u1, or 0.13.72+dfsg.1-1.
What versions of zziplib are affected by CVE-2020-18442?
Affected versions of zziplib include 0.13.69; upgrading to a fixed version is necessary.
Can remote attackers exploit CVE-2020-18442?
Yes, remote attackers can exploit CVE-2020-18442 to create a denial of service condition.
What systems are impacted by CVE-2020-18442?
CVE-2020-18442 impacts systems running affected versions of zziplib, including Debian and Fedora.
- agent/type
- collector/launchpad-cve
- source/Launchpad
- agent/first-publish-date
- collector/security-tracker-debian
- source/Debian
- agent/software-canonical-lookup
- collector/usn-cve
- source/Ubuntu
- agent/weakness
- agent/severity
- agent/references
- agent/remedy
- agent/description
- collector/mitre-cve
- source/MITRE
- agent/last-modified-date
- agent/event
- agent/trending
- agent/source
- agent/author
- collector/nvd-cve
- source/NVD
- agent/software-canonical-lookup-request
- agent/softwarecombine
- agent/tags
- collector/nvd-index
- package-manager/debian
- package-manager/ubuntu
- vendor/zziplib project
- canonical/zziplib
- version/zziplib/0.13.69
- vendor/debian
- canonical/debian linux
- version/debian linux/9.0
- vendor/fedoraproject
- canonical/red hat fedora
- version/red hat fedora/34
- version/red hat fedora/35