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CVE-2020-25725

Published: Nov 21, 2020Updated: Nov 21, 2024 Sources: CVE List NVDCWE-416
NVD MITRE
5.0CVSSMEDIUM
EPSS Score
1.0%
Top 42.0%
CISA KEV
Not in KEV
Exploits
2 Known
Remediation
Patch Available

Description

In Xpdf 4.02, SplashOutputDev::endType3Char(GfxState *state) SplashOutputDev.cc:3079 is trying to use the freed `t3GlyphStack->cache`, which causes an `heap-use-after-free` problem. The codes of a previous fix for nested Type 3 characters wasn't correctly handling the case where a Type 3 char referred to another char in the same Type 3 font.

CVSS Vector Breakdown

AV:LAC:LPR:LUI:RS:UC:NI:NA:H
Exploitability
AV:LAttack Vector
Local
AC:LAttack Complexity
Low
PR:LPrivileges Required
Low
UI:RUser Interaction
Required
Scope
S:UScope
Unchanged
Impact
C:NConfidentiality
None
I:NIntegrity
None
A:HAvailability
High
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Weaknesses

CWE-416

Affected Products

xpdfxpdfreader
On-premDesktop App
Consumer Software / productivity
fedorafedoraproject
On-premOS
Operating Systems / linux-distro
xpdfGlyph & Cog
Library
OSS Libraries / generic-library
xpdfreaderConsumer Softwareaka xpdf
fedoraprojectoss-projectUSOperating Systemsaka fedora project
glyph & cogoss-projectOSS Librariesaka xpdf

Attack Graph

Products CVE Techniques Tactics

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Exploitability

2 exploit sources identified

Exploit details including PoC links, Metasploit modules, and scanner templates are available after registration.

View exploit details
Official Patch Available

MITRE ATT&CK

2 techniques
Initial Access
Privilege Escalation
View detailed technique mapping

References

https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2020-25725
bugzilla.redhat.com
https://forum.xpdfreader.com/viewtopic.php?f=3&t=41915
forum.xpdfreader.com
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/4ZUU5QG6SSVRTKZTR3A72LDRVZETEI63/
lists.fedoraproject.org
and 1 more references View all →

Timeline

Published
Nov 21, 2020
Last Updated
Nov 21, 2024

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