CVE-2021-23991
6.8
MEDIUM
CVSS 3.1
EPSS 0.20%
描述
If a Thunderbird user has previously imported Alice's OpenPGP key, and Alice has extended the validity period of her key, but Alice's updated key has not yet been imported, an attacker may send an email containing a crafted version of Alice's key with an invalid subkey, Thunderbird might subsequently attempt to use the invalid subkey, and will fail to send encrypted email to Alice. This vulnerability affects Thunderbird < 78.9.1.
如何修補 CVE-2021-23991
要修補 CVE-2021-23991,請將受影響套件升級到下列已修補版本。
- —升級至 1:78.10.0-1 或更新版本
CVE-2021-23991 正在被利用嗎?
低 — EPSS 為 0.2%,目前沒有觀察到大規模利用活動。
受影響套件(1)
- from 0, < 1:78.10.0-1
CVSS 分數
| 來源 | 版本 | 嚴重程度 | 向量 |
|---|---|---|---|
| osv | CVSS 3.1 | MEDIUM6.8 | CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:N |