NULL Pointer Dereference Affecting poppler-qt package, versions <0:0.26.5-38.el7
Threat Intelligence
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Start learning- Snyk IDSNYK-RHEL7-POPPLERQT-4892779
- published26 Jul 2021
- disclosed20 Dec 2018
Introduced: 20 Dec 2018
CVE-2018-20481 (opens in a new tab)How to fix?
Upgrade RHEL:7 poppler-qt to version 0:0.26.5-38.el7 or higher.
This issue was patched in RHSA-2019:2022.
NVD Description
Note: Versions mentioned in the description apply only to the upstream poppler-qt package and not the poppler-qt package as distributed by RHEL.
See How to fix? for RHEL:7 relevant fixed versions and status.
XRef::getEntry in XRef.cc in Poppler 0.72.0 mishandles unallocated XRef entries, which allows remote attackers to cause a denial of service (NULL pointer dereference) via a crafted PDF document, when XRefEntry::setFlag in XRef.h is called from Parser::makeStream in Parser.cc.
References
- http://www.securityfocus.com/bid/106321
- https://access.redhat.com/security/cve/CVE-2018-20481
- https://gitlab.freedesktop.org/poppler/poppler/issues/692
- https://gitlab.freedesktop.org/poppler/poppler/merge_requests/143
- https://lists.debian.org/debian-lts-announce/2019/03/msg00008.html
- https://lists.debian.org/debian-lts-announce/2020/07/msg00018.html
- https://access.redhat.com/errata/RHSA-2019:2022
- https://usn.ubuntu.com/3865-1/