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CVE-2023-5174

Date: September 27, 2023

If Windows failed to duplicate a handle during process creation, the sandbox code may have inadvertently freed a pointer twice, resulting in a use-after-free and a potentially exploitable crash. This bug only affects Firefox on Windows when run in non-standard configurations (such as using "runas"). Other operating systems are unaffected. This vulnerability affects Firefox < 118, Firefox ESR < 115.3, and Thunderbird < 115.3.

Language: C++

Severity Score

Related Resources (6)

https://bugzilla.mozilla.org/show_bug.cgi?id=1848454
https://www.mozilla.org/security/advisories/mfsa2023-42/
https://www.mozilla.org/security/advisories/mfsa2023-41/
https://nvd.nist.gov/vuln/detail/CVE-2023-5174
https://www.mozilla.org/security/advisories/mfsa2023-43/
https://www.mend.io/vulnerability-database/CVE-2023-5174

Severity Score

Weakness Type (CWE)

Use After Free

CWE-416

CVSS v3.1

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

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