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CVE-2020-26952

Date: December 8, 2020

Incorrect bookkeeping of functions inlined during JIT compilation could have led to memory corruption and a potentially exploitable crash when handling out-of-memory errors. This vulnerability affects Firefox < 83.

Severity Score

Related Resources (6)

https://people.canonical.com/~ubuntu-security/cve/CVE-2020-26952
https://bugzilla.mozilla.org/show_bug.cgi?id=1667685
https://www.mozilla.org/security/advisories/mfsa2020-50/
https://nvd.nist.gov/vuln/detail/CVE-2020-26952
https://security.alpinelinux.org/vuln/CVE-2020-26952
https://www.mend.io/vulnerability-database/CVE-2020-26952

Severity Score

Weakness Type (CWE)

Out-of-bounds Write

CWE-787

CVSS v3.1

Base Score:
Attack Vector (AV): NETWORK
Attack Complexity (AC): LOW
Privileges Required (PR): NONE
User Interaction (UI): REQUIRED
Scope (S): UNCHANGED
Confidentiality (C): HIGH
Integrity (I): HIGH
Availability (A): HIGH

CVSS v2

Base Score:
Access Vector (AV): NETWORK
Access Complexity (AC): MEDIUM
Authentication (AU): NONE
Confidentiality (C): COMPLETE
Integrity (I): COMPLETE
Availability (A): COMPLETE
Additional information:

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