CVE-2020-26974
N/A
N/A
Summary
When flex-basis was used on a table wrapper, a StyleGenericFlexBasis object could have been incorrectly cast to the wrong type. This resulted in a heap user-after-free, memory corruption, and a potentially exploitable crash. This vulnerability affects Firefox < 84, Thunderbird < 78.6, and Firefox ESR < 78.6.
Affected Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Mozilla | Firefox | unspecified < 84 | affected |
| Mozilla | Thunderbird | unspecified < 78.6 | affected |
| Mozilla | Firefox ESR | unspecified < 78.6 | affected |
Weaknesses
- Incorrect cast of StyleGenericFlexBasis resulted in a heap use-after-free
ADP Enrichment
CVE Program Container
Additional References
- https://www.mozilla.org/security/advisories/mfsa2020-54/
- https://www.mozilla.org/security/advisories/mfsa2020-56/
- https://www.mozilla.org/security/advisories/mfsa2020-55/
- https://bugzilla.mozilla.org/show_bug.cgi?id=1681022
References
- https://www.mozilla.org/security/advisories/mfsa2020-54/
- https://www.mozilla.org/security/advisories/mfsa2020-56/
- https://www.mozilla.org/security/advisories/mfsa2020-55/
- https://bugzilla.mozilla.org/show_bug.cgi?id=1681022
Feedback
Was this page helpful?
Glad to hear it! Please tell us how we can improve.
Sorry to hear that. Please tell us how we can improve.