CVE-2020-25725

Published: Nov 21, 2020 Last Modified: Nov 21, 2024 EU-VD ID: EUVD-2020-18378 Aliases: GSD-2020-25725
ExploitDB:
Other exploit source:
Google Dorks:
MEDIUM 5,0
Source: [email protected]
Attack Vector: local
Attack Complexity: low
Privileges Required: low
User Interaction: required
Scope: unchanged
Confidentiality: none
Integrity: none
Availability: high
MEDIUM 4,3
Source: [email protected]
Access Vector: network
Access Complexity: medium
Authentication: none
Confidentiality: none
Integrity: none
Availability: partial

Description

AI Translation Available

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.

EPSS (Exploit Prediction Scoring System)

Trend Analysis

EPSS (Exploit Prediction Scoring System)

Prevede la probabilità di sfruttamento basata su intelligence sulle minacce e sulle caratteristiche della vulnerabilità.

EPSS Score
0,0018
Percentile
0,4th
Updated

EPSS Score Trend (Last 91 Days)

416

Use After Free

Stable
Abstraction: Variant Structure: Simple
Common Consequences
Security Scopes Affected:
Integrity Availability Confidentiality
Potential Impacts:
Modify Memory Dos: Crash, Exit, Or Restart Execute Unauthorized Code Or Commands
Applicable Platforms
Languages: C, C++, Memory-Unsafe
Likelihood of Exploit: High
View CWE Details
Operating System

Fedora by Fedoraproject

Product Information
Vendor Fedoraproject
Product Fedora
Version 32
cpe:2.3:o:fedoraproject:fedora:32:*:*:*:*:*:*:*
Common Platform Enumeration - Standardized vulnerability identification
Application

Xpdf by Xpdfreader

Product Information
Vendor Xpdfreader
Product Xpdf
Version 4.02
cpe:2.3:a:xpdfreader:xpdf:4.02:*:*:*:*:*:*:*
Common Platform Enumeration - Standardized vulnerability identification
Operating System

Fedora by Fedoraproject

Product Information
Vendor Fedoraproject
Product Fedora
Version 33
cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:*
Common Platform Enumeration - Standardized vulnerability identification
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2020-25725
Exploit Issue Tracking Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2020-25725
https://forum.xpdfreader.com/viewtopic.php?f=3&t=41915
Exploit Vendor Advisory
https://forum.xpdfreader.com/viewtopic.php?f=3&t=41915
https://lists.fedoraproject.org/archives/list/package-annou…
Mailing List Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedorapr…
https://lists.fedoraproject.org/archives/list/package-annou…
Mailing List Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedorapr…
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2020-25725
Exploit Issue Tracking Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2020-25725
https://forum.xpdfreader.com/viewtopic.php?f=3&t=41915
Exploit Vendor Advisory
https://forum.xpdfreader.com/viewtopic.php?f=3&t=41915
https://lists.fedoraproject.org/archives/list/package-annou…
Mailing List Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedorapr…
https://lists.fedoraproject.org/archives/list/package-annou…
Mailing List Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedorapr…