CVE-2018-20650
MEDIUMCVSS 6.5/10EPSS 2.68%
Last modified
CVE-2018-20650 is a medium-severity vulnerability rated 6.5/10 on the CVSS scale. A reachable Object::dictLookup assertion in Poppler 0.72.0 allows attackers to cause a denial of service due to the lack of a check for the dict data type, as demonstrated by use of the FileSpec class (in FileSpec.cc) in pdfdetach.. EPSS estimates a 2.68% chance of exploitation in the next 30 days.
Description
A reachable Object::dictLookup assertion in Poppler 0.72.0 allows attackers to cause a denial of service due to the lack of a check for the dict data type, as demonstrated by use of the FileSpec class (in FileSpec.cc) in pdfdetach.
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Freedesktop | Poppler | 0.72.0 |
| Canonical | Ubuntu Linux | 14.04 |
| Canonical | Ubuntu Linux | 16.04 |
| Canonical | Ubuntu Linux | 18.04 |
| Canonical | Ubuntu Linux | 18.10 |
| Debian | Debian Linux | 8.0 |
| Debian | Debian Linux | 9.0 |
| Debian | Debian Linux | 10.0 |
| Redhat | Enterprise Linux | 8.0 |
| Redhat | Enterprise Linux Desktop | 7.0 |
| Redhat | Enterprise Linux Eus | 8.1 |
| Redhat | Enterprise Linux Eus | 8.2 |
| Redhat | Enterprise Linux Eus | 8.4 |
| Redhat | Enterprise Linux Eus | 8.6 |
| Redhat | Enterprise Linux Server | 7.0 |
| Redhat | Enterprise Linux Server Aus | 8.2 |
| Redhat | Enterprise Linux Server Aus | 8.4 |
| Redhat | Enterprise Linux Server Aus | 8.6 |
| Redhat | Enterprise Linux Server Tus | 8.2 |
| Redhat | Enterprise Linux Server Tus | 8.4 |
| Redhat | Enterprise Linux Server Tus | 8.6 |
| Redhat | Enterprise Linux Workstation | 7.0 |
References
- http://www.securityfocus.com/bid/106459Third Party Advisory, VDB Entry
- https://access.redhat.com/errata/RHSA-2019:2022Third Party Advisory
- https://access.redhat.com/errata/RHSA-2019:2713Third Party Advisory
- https://gitlab.freedesktop.org/poppler/poppler/commit/de0c0b8324e776f0b851485e0fc9622fc35695b7Patch, Third Party Advisory
- https://gitlab.freedesktop.org/poppler/poppler/issues/704Issue Tracking, Patch, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2019/09/msg00033.htmlMailing List, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2020/11/msg00014.htmlMailing List, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2022/09/msg00030.htmlMailing List, Third Party Advisory
- https://usn.ubuntu.com/3865-1/Third Party Advisory
- http://www.securityfocus.com/bid/106459Third Party Advisory, VDB Entry
- https://access.redhat.com/errata/RHSA-2019:2022Third Party Advisory
- https://access.redhat.com/errata/RHSA-2019:2713Third Party Advisory
- https://gitlab.freedesktop.org/poppler/poppler/commit/de0c0b8324e776f0b851485e0fc9622fc35695b7Patch, Third Party Advisory
- https://gitlab.freedesktop.org/poppler/poppler/issues/704Issue Tracking, Patch, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2019/09/msg00033.htmlMailing List, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2020/11/msg00014.htmlMailing List, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2022/09/msg00030.htmlMailing List, Third Party Advisory
- https://usn.ubuntu.com/3865-1/Third Party Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2018-20650?
A reachable Object::dictLookup assertion in Poppler 0.72.0 allows attackers to cause a denial of service due to the lack of a check for the dict data type, as demonstrated by use of the FileSpec class (in FileSpec.cc) in pdfdetach.
How severe is CVE-2018-20650?
CVE-2018-20650 has a CVSS score of 6.5/10 (MEDIUM severity). The EPSS model estimates a 2.68% probability of exploitation in the next 30 days.
How do I fix CVE-2018-20650?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.
How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
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Are you affected by CVE-2018-20650?
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Scan your code nowSource: NVD / NIST