CVE-2020-26971
Mozilla: Heap buffer overflow in WebGL
Severity Score
8.8
*CVSS v3.1
Exploit Likelihood
*EPSS
Affected Versions
*CPE
Public Exploits
0
*Multiple Sources
Exploited in Wild
-
*KEV
Decision
-
*SSVC
Descriptions
Certain blit values provided by the user were not properly constrained leading to a heap buffer overflow on some video drivers. This vulnerability affects Firefox < 84, Thunderbird < 78.6, and Firefox ESR < 78.6.
Determinados valores de blit proporcionados por el usuario no se restringieron apropiadamente, conllevando a un desbordamiento del búfer de pila en algunos controladores de video. Esta vulnerabilidad afecta a Firefox versiones anteriores a 84, Thunderbird versiones anteriores a 78,6 y Firefox ESR versiones anteriores a 78,6
The Mozilla Foundation Security Advisory describes this flaw as:
Certain blit values provided by the user were not properly constrained leading to a heap buffer overflow on some video drivers.
*Credits:
N/A
CVSS Scores
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
Attack Vector
Attack Complexity
Authentication
Confidentiality
Integrity
Availability
* Common Vulnerability Scoring System
SSVC
- Decision:-
Exploitation
Automatable
Tech. Impact
* Organization's Worst-case Scenario
Timeline
- 2020-10-12 CVE Reserved
- 2020-12-16 CVE Published
- 2024-08-04 CVE Updated
- 2024-11-11 EPSS Updated
- ---------- Exploited in Wild
- ---------- KEV Due Date
- ---------- First Exploit
CWE
- CWE-120: Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')
- CWE-787: Out-of-bounds Write
CAPEC
References (5)
| URL | Tag | Source |
|---|
| URL | Date | SRC |
|---|
| URL | Date | SRC |
|---|
| URL | Date | SRC |
|---|---|---|
| https://www.mozilla.org/security/advisories/mfsa2020-54 | 2021-01-11 | |
| https://www.mozilla.org/security/advisories/mfsa2020-55 | 2021-01-11 | |
| https://www.mozilla.org/security/advisories/mfsa2020-56 | 2021-01-11 | |
| https://access.redhat.com/security/cve/CVE-2020-26971 | 2020-12-21 | |
| https://bugzilla.redhat.com/show_bug.cgi?id=1908022 | 2020-12-21 |
Affected Vendors, Products, and Versions
| Vendor | Product | Version | Other | Status | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Vendor | Product | Version | Other | Status | <-- --> | Vendor | Product | Version | Other | Status |
| Mozilla Search vendor "Mozilla" | Firefox Search vendor "Mozilla" for product "Firefox" | < 84.0 Search vendor "Mozilla" for product "Firefox" and version " < 84.0" | - |
Affected
| ||||||
| Mozilla Search vendor "Mozilla" | Firefox Esr Search vendor "Mozilla" for product "Firefox Esr" | < 78.6.0 Search vendor "Mozilla" for product "Firefox Esr" and version " < 78.6.0" | - |
Affected
| ||||||
| Mozilla Search vendor "Mozilla" | Thunderbird Search vendor "Mozilla" for product "Thunderbird" | < 78.6.0 Search vendor "Mozilla" for product "Thunderbird" and version " < 78.6.0" | - |
Affected
| ||||||