CVE-2020-26950
N/A
N/A
Summary
In certain circumstances, the MCallGetProperty opcode can be emitted with unmet assumptions resulting in an exploitable use-after-free condition. This vulnerability affects Firefox < 82.0.3, Firefox ESR < 78.4.1, and Thunderbird < 78.4.2.
Affected Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Mozilla | Firefox | < 82.0.3 | affected |
| Mozilla | Firefox ESR | < 78.4.1 | affected |
| Mozilla | Thunderbird | < 78.4.2 | affected |
Weaknesses
- Write side effects in MCallGetProperty opcode not accounted for
ADP Enrichment
CVE Program Container
Additional References
- https://bugzilla.mozilla.org/show_bug.cgi?id=1675905
- https://www.mozilla.org/security/advisories/mfsa2020-49/
- http://packetstormsecurity.com/files/166175/Firefox-MCallGetProperty-Write-Side-Effects-Use-After-Free.html
References
- https://bugzilla.mozilla.org/show_bug.cgi?id=1675905
- https://www.mozilla.org/security/advisories/mfsa2020-49/
- http://packetstormsecurity.com/files/166175/Firefox-MCallGetProperty-Write-Side-Effects-Use-After-Free.html
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