high8.8
CVE-2021-29946
Ports that were written as an integer overflow above the bounds of a 16-bit integer could have bypassed port blocking restrictions when used in the Alt-Svc hea…
Impact
Ports that were written as an integer overflow above the bounds of a 16-bit integer could have bypassed port blocking restrictions when used in the Alt-Svc header. This vulnerability affects Firefox ESR < 78.10, Thunderbird < 78.10, and Firefox < 88.
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Mozilla | Firefox | before 88.0 |
| Mozilla | Firefox Esr | before 78.10 |
| Mozilla | Thunderbird | before 78.10 |
Weakness classification
References
- NVD record
- CVE.org record
- https://bugzilla.mozilla.org/show_bug.cgi?id=1698503
- https://www.mozilla.org/security/advisories/mfsa2021-14/
- https://www.mozilla.org/security/advisories/mfsa2021-15/
- https://www.mozilla.org/security/advisories/mfsa2021-16/
- https://bugzilla.mozilla.org/show_bug.cgi?id=1698503
- https://www.mozilla.org/security/advisories/mfsa2021-14/
- https://www.mozilla.org/security/advisories/mfsa2021-15/
- https://www.mozilla.org/security/advisories/mfsa2021-16/