VDB
DEBIAN-CVE-2021-29988
DEBIAN-CVE-2021-29988
PUBLISHED
CVSS 8.800000190734863 HIGH
Firefox incorrectly treated an inline list-item element as a block element, resulting in an out of bounds read or memory corruption, and a potentially exploitable crash. This vulnerability affects Thunderbird < 78.13, Thunderbird < 91, Firefox ESR < 78.13, and Firefox < 91.
Risk Scores
CVSS v3.1
8.800000190734863
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Debian:12 | thunderbird | 0, 0, 0 |
| Debian:14 | firefox-esr | 0, 0, 0 |
| Debian:14 | thunderbird | 0, 0, 0 |
| Debian:13 | firefox-esr | 0, 0, 0 |
| Debian:11 | firefox-esr | *, 0, 78.12.0 |
| Debian:12 | firefox-esr | 0, 0, 0 |
| Debian:11 | thunderbird | 78.12.0-1, 1:78.13.0-1~deb9u1, 0 |
| Debian:13 | thunderbird | 0, 0, 0 |
Timeline
- Aug 17, 2021 CVE Published
- Apr 28, 2026 CVE Updated