CVE-2018-20481

medium

Description

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

https://usn.ubuntu.com/3865-1/

https://lists.debian.org/debian-lts-announce/2020/07/msg00018.html

https://lists.debian.org/debian-lts-announce/2019/03/msg00008.html

https://gitlab.freedesktop.org/poppler/poppler/merge_requests/143

https://gitlab.freedesktop.org/poppler/poppler/issues/692

https://access.redhat.com/errata/RHSA-2019:2713

https://access.redhat.com/errata/RHSA-2019:2022

http://www.securityfocus.com/bid/106321

Details

Source: Mitre, NVD

Published: 2018-12-26

Updated: 2020-07-23

Risk Information

CVSS v2

Base Score: 4.3

Vector: CVSS2#AV:N/AC:M/Au:N/C:N/I:N/A:P

Severity: Medium

CVSS v3

Base Score: 6.5

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

Severity: Medium