Description (CNA)
On 64-bit CPUs, when the JIT compiles WASM i32 return values they can pick up bits from left over memory. This can potentially cause them to be treated as a different type. This vulnerability was fixed in Firefox 136, Firefox ESR 115.21, Firefox ESR 128.8, Thunderbird 136, and Thunderbird 128.8.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Mozilla / Firefox | unaffected 115.21 through 115.*; unaffected 128.8 through 128.*; unaffected 136 through * |
| Mozilla / Thunderbird | unaffected 128.8 through 128.*; unaffected 136 through * |
CWE
No CWE identifiers supplied.
References
- https://bugzilla.mozilla.org/show_bug.cgi?id=1946004
- https://www.mozilla.org/security/advisories/mfsa2025-14/
- https://www.mozilla.org/security/advisories/mfsa2025-15/
- https://www.mozilla.org/security/advisories/mfsa2025-16/
- https://www.mozilla.org/security/advisories/mfsa2025-17/
- https://www.mozilla.org/security/advisories/mfsa2025-18/
ADP enrichment
No English description supplied.
No references supplied.
No English description supplied.