CVE-2018-20481

moderate-risk
Published 2018-12-26

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.

Do I need to act?

~
1.2% chance of exploitation in next 30 days
EPSS score — moderate exploit probability
-
Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
6
CVSS 6.5/10 Medium
NETWORK / LOW complexity

Affected Products (6)

Affected Vendors

Debian Canonical Freedesktop

References (16)

Third Party Advisory http://www.securityfocus.com/bid/106321
https://access.redhat.com/errata/RHSA-2019:2022
https://access.redhat.com/errata/RHSA-2019:2713
Exploit https://gitlab.freedesktop.org/poppler/poppler/issues/692
Patch https://gitlab.freedesktop.org/poppler/poppler/merge_requests/143
Third Party Advisory https://lists.debian.org/debian-lts-announce/2019/03/msg00008.html
https://lists.debian.org/debian-lts-announce/2020/07/msg00018.html
Third Party Advisory https://usn.ubuntu.com/3865-1/
Third Party Advisory http://www.securityfocus.com/bid/106321
https://access.redhat.com/errata/RHSA-2019:2022
https://access.redhat.com/errata/RHSA-2019:2713
Exploit https://gitlab.freedesktop.org/poppler/poppler/issues/692
Patch https://gitlab.freedesktop.org/poppler/poppler/merge_requests/143
Third Party Advisory https://lists.debian.org/debian-lts-announce/2019/03/msg00008.html
https://lists.debian.org/debian-lts-announce/2020/07/msg00018.html
Third Party Advisory https://usn.ubuntu.com/3865-1/
41
/ 100
moderate-risk
Severity 24/34 · High
Exploitability 4/34 · Minimal
Exposure 13/34 · Low