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CVE-2018-20481

Date: December 25, 2018

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.

Language: SHELL

Severity Score

Related Resources (12)

https://usn.ubuntu.com/3865-1/
https://lists.debian.org/debian-lts-announce/2019/03/msg00008.html
https://gitlab.freedesktop.org/poppler/poppler/merge_requests/143
http://www.securityfocus.com/bid/106321
https://access.redhat.com/errata/RHSA-2019:2022
https://access.redhat.com/security/cve/CVE-2018-20481
https://security-tracker.debian.org/tracker/CVE-2018-20481
https://lists.debian.org/debian-lts-announce/2020/07/msg00018.html
https://nvd.nist.gov/vuln/detail/CVE-2018-20481
https://gitlab.freedesktop.org/poppler/poppler/issues/692
https://access.redhat.com/errata/RHSA-2019:2713
https://www.mend.io/vulnerability-database/CVE-2018-20481

Severity Score

Weakness Type (CWE)

NULL Pointer Dereference

CWE-476

CVSS v3.1

Base Score:
Attack Vector (AV): NETWORK
Attack Complexity (AC): LOW
Privileges Required (PR): NONE
User Interaction (UI): REQUIRED
Scope (S): UNCHANGED
Confidentiality (C): NONE
Integrity (I): NONE
Availability (A): HIGH

CVSS v2

Base Score:
Access Vector (AV): NETWORK
Access Complexity (AC): MEDIUM
Authentication (AU): NONE
Confidentiality (C): NONE
Integrity (I): NONE
Availability (A): PARTIAL
Additional information:

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