CVE-2026-34181
描述
Issue Summary: The PKCS#12 file processing fails to perform sufficient input validation for files that use Password-Based Message Authentication Code 1 (PBMAC1) integrity mechanism allowing a certificate and private key forgery. Impact Summary: An attacker impersonating a user can cause a service reading PKCS#12 files to accept forged certificates and private keys with a 1 in 256 probability. If a service accepting PKCS#12 files is using passwords for authenticating the received files, the attacker can create unencrypted PKCS#12 files that use PBMAC1 authentication that specifies an HMAC key of only one byte, allowing them to craft a file that will be accepted with a 1 in 256 probability. That would then cause the service to accept a certificate and private key controlled by the attacker. The FIPS modules are not affected by this issue, as the affected code is outside the OpenSSL FIPS module boundary.
如何修補 CVE-2026-34181
要修補 CVE-2026-34181,請將受影響套件升級到下列已修補版本。
- —升級至 3.5.7-r0 或更新版本
- —升級至 3.5.6-1~deb13u2 或更新版本
CVE-2026-34181 正在被利用嗎?
目前沒有被利用訊號。CVE-2026-34181 既不在 CISA KEV 也沒有最新的 EPSS 分數。
受影響套件(2)
- from 0, < 3.5.7-r0
- from 0, < 3.5.6-1~deb13u2
CVSS 分數
| 來源 | 版本 | 嚴重程度 | 向量 |
|---|---|---|---|
| nvd | CVSS 3.1 | HIGH7.4 | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N |