Firefox Vulnerable to Undefined Behavior Due to Move Semantics Bypass
CVE-2024-4774

6.5MEDIUM

Key Information:

Vendor

Mozilla
Status
Firefox
Vendor
CVE Published:
14 May 2024

What is CVE-2024-4774?

The ShmemCharMapHashEntry() code was susceptible to potentially undefined behavior by bypassing the move semantics for one of its data members. This vulnerability affects Firefox < 126.

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Affected Version(s)

Firefox < 126

References

https://bugzilla.mozilla.org/show_bug.cgi?id=1886598
https://www.mozilla.org/security/advisories/mfsa2024-21/

CVSS V3.1

Score:
6.5
Severity:
MEDIUM
Confidentiality:
None
Integrity:
Low
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

Ronald Crane
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