Vulnerability CVE-2021-38498


Published: 2021-11-03

Description:
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.

Type:

CWE-416

(Use After Free)

CVSS2 => (AV:N/AC:L/Au:N/C:N/I:N/A:P)

CVSS Base Score
Impact Subscore
Exploitability Subscore
5/10
2.9/10
10/10
Exploit range
Attack complexity
Authentication
Remote
Low
No required
Confidentiality impact
Integrity impact
Availability impact
None
None
Partial
Affected software
Mozilla -> Firefox 
Mozilla -> Firefox esr 
Mozilla -> Thunderbird 

 References:
https://www.mozilla.org/security/advisories/mfsa2021-43/
https://www.mozilla.org/security/advisories/mfsa2021-45/
https://bugzilla.mozilla.org/show_bug.cgi?id=1729642
https://www.mozilla.org/security/advisories/mfsa2021-47/

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