REDHAT-BUG-1665266: Null Pointer Dereference
First published: Thu Jan 10 2019(Updated: )
A flaw was found in Poppler 0.72.0. A NULL pointer dereference in the XRef::getEntry class in XRef.cc file due to the mishandle of unallocated XRef entries. This allows remote attackers to cause a denial of service via a crafted PDF document, when XRefEntry::setFlag in XRef.h is called from Parser::makeStream in Parser.cc. References: <a href="https://gitlab.freedesktop.org/poppler/poppler/issues/692">https://gitlab.freedesktop.org/poppler/poppler/issues/692</a> Upstream Patch: <a href="https://gitlab.freedesktop.org/poppler/poppler/merge_requests/143">https://gitlab.freedesktop.org/poppler/poppler/merge_requests/143</a>
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Poppler Utilities | =0.72.0 |
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://gitlab.freedesktop.org/poppler/poppler/issues/692
- https://gitlab.freedesktop.org/poppler/poppler/merge_requests/143
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=1665269
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=1665268
- https://access.redhat.com/errata/RHSA-2019:2022
- https://access.redhat.com/security/cve/cve-2018-20481
- https://access.redhat.com/errata/RHSA-2019:2713
- https://bugzilla.redhat.com/show_bug.cgi?id=1665266
Frequently Asked Questions
What is the severity of REDHAT-BUG-1665266?
The severity of REDHAT-BUG-1665266 is considered to be high due to the potential denial of service caused by malformed PDF documents.
How do I fix REDHAT-BUG-1665266?
To fix REDHAT-BUG-1665266, upgrade Poppler to a patched version that resolves the NULL pointer dereference issue.
What software is affected by REDHAT-BUG-1665266?
The affected software for REDHAT-BUG-1665266 is Poppler version 0.72.0.
Can REDHAT-BUG-1665266 be exploited remotely?
Yes, REDHAT-BUG-1665266 can be exploited remotely through crafted PDF documents.
What is the impact of the vulnerability REDHAT-BUG-1665266?
The impact of REDHAT-BUG-1665266 is a denial of service, leading to potential application crashes when processing malicious PDF files.
- agent/references
- agent/type
- agent/last-modified-date
- agent/first-publish-date
- collector/redhat-bugzilla
- source/Red Hat
- alias/CVE-2018-20481
- agent/source
- agent/severity
- agent/weakness
- agent/description
- agent/event
- agent/softwarecombine
- agent/tags
- agent/guess-ai
- agent/software-canonical-lookup
- agent/software-canonical-lookup-request
- vendor/poppler
- canonical/poppler utilities