CVE-2018-20551: Input Validation
A flaw was found in Poppler 0.72.0. A reachable Object::getString assertion allows attackers to cause a denial of service due to construction of invalid rich media annotation assets in the AnnotRichMedia class in Annot.c.
References: https://gitlab.freedesktop.org/poppler/poppler/issues/703
Upstream Patch: https://gitlab.freedesktop.org/poppler/poppler/mergerequests/146
Other sources
A reachable Object::getString assertion in Poppler 0.72.0 allows attackers to cause a denial of service due to construction of invalid rich media annotation assets in the AnnotRichMedia class in Annot.c.
— Launchpad
Affected Software
Remediation
Event History
Frequently Asked Questions
What is the severity of CVE-2018-20551?
The severity of CVE-2018-20551 is medium.
What software versions are affected by CVE-2018-20551?
Poppler versions 0.72.0 and older are affected by CVE-2018-20551.
How can attackers exploit CVE-2018-20551?
Attackers can exploit CVE-2018-20551 by constructing invalid rich media annotation assets.
What is the remedy for CVE-2018-20551?
The recommended remedy for CVE-2018-20551 is to update Poppler to version 0.71.0-5 or newer.
Are there any references for CVE-2018-20551?
Yes, you can find more information about CVE-2018-20551 at the following references: [Red Hat Security Advisory](https://access.redhat.com/errata/RHSA-2019:2713), [GitLab issue](https://gitlab.freedesktop.org/poppler/poppler/issues/703), and [GitLab merge request](https://gitlab.freedesktop.org/poppler/poppler/merge_requests/146).