CVE-2020-26972

The lifecycle of IPC Actors allows managed actors to outlive their manager actors; and the former must ensure that they are not attempting to use a dead actor they have a reference to. Such a check was omitted in WebGL, resulting in a use-after-free and a potentially exploitable crash. This vulnerability affects Firefox < 84.

CVSS v3 9.8 CRITICAL
CVSS v2.0 7.5 HIGH

9.8^/10

CVSS v3 : CRITICAL

Vector :

Exploitability : 3.9 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

7.5^/10

CVSS v2.0 : HIGH

Vector : AV:N/AC:L/Au:N/C:P/I:P/A:P

Exploitability : 10.0 / Impact : 6.4

Access Vector NETWORK

Access Complexity LOW

Authentication NONE

Confidentiality Impact PARTIAL

Integrity Impact PARTIAL

Availability Impact PARTIAL

References

Link	Resource
https://bugzilla.mozilla.org/show_bug.cgi?id=1671382	Permissions Required
https://www.mozilla.org/security/advisories/mfsa2020-54/	Vendor Advisory
https://bugzilla.mozilla.org/show_bug.cgi?id=1671382	Permissions Required
https://www.mozilla.org/security/advisories/mfsa2020-54/	Vendor Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:*

History

21 Nov 2024, 05:20

Type	Values Removed	Values Added
References	~~() https://bugzilla.mozilla.org/show_bug.cgi?id=1671382 - Permissions Required~~	() https://bugzilla.mozilla.org/show_bug.cgi?id=1671382 - Permissions Required
References	~~() https://www.mozilla.org/security/advisories/mfsa2020-54/ - Vendor Advisory~~	() https://www.mozilla.org/security/advisories/mfsa2020-54/ - Vendor Advisory

Information

Published : 2021-01-07 14:15

Updated : 2024-11-21 05:20

NVD link : CVE-2020-26972

Mitre link : CVE-2020-26972

CVE.ORG link : CVE-2020-26972

JSON object : View

Products Affected

mozilla

firefox

CWE

CWE-416

Use After Free

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