VDB
DEBIAN-CVE-2021-29986
DEBIAN-CVE-2021-29986
PUBLISHED
CVSS 8.100000381469727 HIGH
A suspected race condition when calling getaddrinfo led to memory corruption and a potentially exploitable crash. *Note: This issue only affected Linux operating systems. Other operating systems are unaffected.* This vulnerability affects Thunderbird < 78.13, Thunderbird < 91, Firefox ESR < 78.13, and Firefox < 91.
Risk Scores
CVSS 3.1
8.100000381469727
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Debian:12 | firefox-esr | 0, 0, 0 |
| Debian:13 | thunderbird | 0, 0, 0 |
| Debian:14 | thunderbird | 0, 0, 0 |
| Debian:11 | firefox-esr | 0, 0, 78.12.0 |
| Debian:12 | thunderbird | 0, 0, 0 |
| Debian:11 | thunderbird | 0, 0, 78.13.0-1 |
| Debian:14 | firefox-esr | 0, 0, 0 |
| Debian:13 | firefox-esr | 0, 0, 0 |
Timeline
- Aug 17, 2021 CVE Published
- Apr 28, 2026 CVE Updated