CVE-2019-9153
Message Signature Bypass in openpgp
描述
Versions of `openpgp` prior to 4.2.0 are vulnerable to Message Signature Bypass. The package fails to verify that a message signature is of type `text`. This allows an attacker to to construct a message with a signature type that only verifies subpackets without additional input (such as `standalone` or `timestamp`). For example, an attacker that captures a `standalone` signature packet from a victim can construct arbitrary signed messages that would be verified correctly. ## Recommendation Upgrade to version 4.2.0 or later. If you are upgrading from a version <4.0.0 it is highly recommended to read the `High-Level API Changes` section of the `openpgp` 4.0.0 release: https://github.com/openpgpjs/openpgpjs/releases/tag/v4.0.0
如何修補 CVE-2019-9153
要修補 CVE-2019-9153,請將受影響套件升級到下列已修補版本。
- —升級至 4.2.0 或更新版本
CVE-2019-9153 正在被利用嗎?
低 — EPSS 為 2.0%,目前沒有觀察到大規模利用活動。
受影響套件(1)
- from 0, < 4.2.0
CVSS 分數
| 來源 | 版本 | 嚴重程度 | 向量 |
|---|---|---|---|
| osv | CVSS 3.1 | HIGH7.5 | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N |