CVE-2021-38498

During process shutdown, a document could have caused a use-after-free of a languages service object, leading to memory corruption and a potentially exploitable crash. This vulnerability affects Firefox < 93, Thunderbird < 91.2, and Firefox ESR < 91.2.

CVSS v3.0 7.5 HIGH
CVSS v2.0 5.0 MEDIUM

7.5^/10

CVSS v3.0 : HIGH

Vector :

Exploitability : 3.9 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

5.0^/10

CVSS v2.0 : MEDIUM

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

Exploitability : 10.0 / Impact : 2.9

Access Vector NETWORK

Access Complexity LOW

Authentication NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact PARTIAL

References

Link	Resource
https://www.mozilla.org/security/advisories/mfsa2021-43/	Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2021-45/	Vendor Advisory
https://bugzilla.mozilla.org/show_bug.cgi?id=1729642	Permissions Required Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2021-47/	Vendor Advisory

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Configurations

Configuration 1 (hide)

OR	cpe:2.3:a:mozilla:firefox::::::::
	cpe:2.3:a:mozilla:firefox_esr::::::::
	cpe:2.3:a:mozilla:thunderbird::::::::

Information

Published : 2021-11-02 18:15

Updated : 2021-11-04 13:29

NVD link : CVE-2021-38498

Mitre link : CVE-2021-38498

JSON object : View

CWE

CWE-416

Use After Free

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Products Affected

mozilla

firefox
firefox_esr
thunderbird

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