CVE-2020-26950

Published: Dic 09, 2020 Last Modified: Nov 21, 2024
ExploitDB:
Other exploit source:
Google Dorks:
HIGH 8,8
Source: [email protected]
Attack Vector: network
Attack Complexity: low
Privileges Required: none
User Interaction: required
Scope: unchanged
Confidentiality: high
Integrity: high
Availability: high
HIGH 9,3
Source: [email protected]
Access Vector: network
Access Complexity: medium
Authentication: none
Confidentiality: complete
Integrity: complete
Availability: complete

Description

AI Translation Available

In certain circumstances, the MCallGetProperty opcode can be emitted with unmet assumptions resulting in an exploitable use-after-free condition. This vulnerability affects Firefox < 82.0.3, Firefox ESR < 78.4.1, and Thunderbird < 78.4.2.

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
0,4690
Percentile
1,0th
Updated

EPSS Score Trend (Last 90 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
Application

Firefox Esr by Mozilla

Product Information
Vendor Mozilla
Product Firefox Esr
Version Range Affected
To 78.4.1 (exclusive)
cpe:2.3:a:mozilla:firefox_esr:*:*:*:*:*:*:*:*
Common Platform Enumeration - Standardized vulnerability identification
Application

Thunderbird by Mozilla

Product Information
Vendor Mozilla
Product Thunderbird
Version Range Affected
To 78.4.2 (exclusive)
cpe:2.3:a:mozilla:thunderbird:*:*:*:*:*:*:*:*
Common Platform Enumeration - Standardized vulnerability identification
Application

Firefox by Mozilla

Product Information
Vendor Mozilla
Product Firefox
Version Range Affected
To 82.0.3 (exclusive)
cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:*
Common Platform Enumeration - Standardized vulnerability identification
http://packetstormsecurity.com/files/166175/Firefox-MCallGe…
Exploit Third Party Advisory VDB Entry
http://packetstormsecurity.com/files/166175/Firefox-MCallGetProperty-Write-Side…
https://bugzilla.mozilla.org/show_bug.cgi?id=1675905
Exploit Issue Tracking Vendor Advisory
https://bugzilla.mozilla.org/show_bug.cgi?id=1675905
https://www.mozilla.org/security/advisories/mfsa2020-49/
Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2020-49/
http://packetstormsecurity.com/files/166175/Firefox-MCallGe…
Exploit Third Party Advisory VDB Entry
http://packetstormsecurity.com/files/166175/Firefox-MCallGetProperty-Write-Side…
https://bugzilla.mozilla.org/show_bug.cgi?id=1675905
Exploit Issue Tracking Vendor Advisory
https://bugzilla.mozilla.org/show_bug.cgi?id=1675905
https://www.mozilla.org/security/advisories/mfsa2020-49/
Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2020-49/