CVE-2025-11187

CVE-2025-11187 PKCS12 PBMAC1 PBKDF2 keylength 中的栈缓冲区溢出（OpenSSL 3.X） 大约一年前发现了这个栈缓冲区溢出，后来发现它是重复的（CVE-2025-11187） 问题发生在 libcrypto 的 PKCS PBMAC1 处理中，当 PBKDF2 的 keylength 受攻击者控制时，会在 pkcs12genmac（crypto/pkcs12/p12mutl.c）中对固定栈缓冲区进行写入越界（已在 OpenSSL 3.6.0 上测试） 组件：libcrypto（PKCS12 MAC）、providers（PBKDF2）...

GHSA-MPWR-8VM7-H73F package pkcs12: Authentication bypass in Decode functions

Decode, DecodeChain, DecodeTrustStore, and ToPEM can incorrectly accept PKCS12 files which were encoded with the wrong password, due to a failure to reject excessively-short PBMAC1 keys. Users who decode PKCS12 files from untrusted sources and rely on the password for authentication can be tricke...

package pkcs12: Authentication bypass in Decode functions

Decode, DecodeChain, DecodeTrustStore, and ToPEM can incorrectly accept PKCS12 files which were encoded with the wrong password, due to a failure to reject excessively-short PBMAC1 keys. Users who decode PKCS12 files from untrusted sources and rely on the password for authentication can be tricke...

Important: openssl

Issue Overview: Issue summary: Parsing a crafted DER-encoded ASN.1 structure with a primitive element whose content exceeds 2 gigabytes in length may cause a heap buffer over-read on 64-bit Unix and Unix-like platforms. Impact summary: The heap buffer over-read may crash the application Denial of...

SUSE-SU-2026:2411-1 Security update for openssl-3-livepatches

This update for openssl-3-livepatches fixes the following issues: - CVE-2025-11187: Improper validation of PBMAC1 parameters in PKCS12 MAC verification bsc1256878. - CVE-2025-15467: Stack buffer overflow in CMS AuthEnvelopedData parsing bsc1256876. - CVE-2025-15468: NULL dereference in...

Security update for openssl-3-livepatches

This update for openssl-3-livepatches fixes the following issues: CVE-2025-11187: Improper validation of PBMAC1 parameters in PKCS12 MAC verification bsc1256878. CVE-2025-15467: Stack buffer overflow in CMS AuthEnvelopedData parsing bsc1256876. CVE-2025-15468: NULL dereference in SSLCIPHERfind...

SUSE CVE-2026-34181

Issue Summary: The PKCS12 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...

Important: Red Hat Security Advisory: openssl security update

An update for openssl is now available for Red Hat Enterprise Linux 9. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available for each vulnerability from t...

openssl: PKCS#12 Files with PBMAC1 Are Accepted with Short HMAC Keys

A flaw was found in OpenSSL. This vulnerability allows a remote attacker to forge PKCS12 Public-Key Cryptography Standards 12 files that use Password-Based Message Authentication Code 1 PBMAC1 with short HMAC Hash-based Message Authentication Code keys. This can lead to a service accepting...

SUSE-SU-2026:22143-1 Security update for openssl-3-livepatches

This update for openssl-3-livepatches fixes the following issues - CVE-2025-11187: Improper validation of PBMAC1 parameters in PKCS12 MAC verification bsc1256878. - CVE-2025-15467: Stack buffer overflow in CMS AuthEnvelopedData parsing bsc1256876. - CVE-2025-15468: NULL dereference in SSLCIPHERfi...

Improper Validation of Integrity Check Value

Overview Affected versions of this package are vulnerable to Improper Validation of Integrity Check Value in PBMAC1PBKDF2HMAC. A user can craft an unencrypted PKCS12 file that uses PBMAC1 authentication specifying a one-byte HMAC key, causing a service that authenticates incoming files by passwor...

Security Bulletin: Multiple Vulnerabilities in IBM API Connect

Summary Multiple vulnerabilities were addressed in IBM API Connect version v12.1.0.3 Vulnerability Details CVEID:CVE-2025-11187 DESCRIPTION: Issue summary: PBMAC1 parameters in PKCS12 files are missing validation which can trigger a stack-based buffer overflow, invalid pointer or NULL pointer...

K000159898: OpenSSL vulnerability CVE-2025-11187

Security Advisory Description Issue summary: PBMAC1 parameters in PKCS12 files are missing validation which can trigger a stack-based buffer overflow, invalid pointer or NULL pointer dereference during MAC verification. Impact summary: The stack buffer overflow or NULL pointer dereference may cau...

Ubuntu: Security Advisory (USN-7980-1)

The remote host is missing an update for the SPDX-FileCopyrightText: 2026 Greenbone AG Some text descriptions might be excerpted from a referenced sources, and are Copyright C by the respective right holders. SPDX-License-Identifier: GPL-2.0-only ifdescription...

ALPINE-CVE-2025-11187

Issue summary: PBMAC1 parameters in PKCS12 files are missing validation which can trigger a stack-based buffer overflow, invalid pointer or NULL pointer dereference during MAC verification. Impact summary: The stack buffer overflow or NULL pointer dereference may cause a crash leading to Denial o...

CVE-2025-11187

OpenSSL CVE-2025-11187 affects OpenSSL 3.6, 3.5 and 3.4 where PBMAC1 parameters in PKCS#12 MAC verification are not validated. The PBKDF2 salt and keylength are used without validation; if keylength exceeds the 64-byte derived key buffer, an attacker-controlled buffer overflow can occur, potentia...

CVE-2025-11187 Improper validation of PBMAC1 parameters in PKCS#12 MAC verification

Issue summary: PBMAC1 parameters in PKCS12 files are missing validation which can trigger a stack-based buffer overflow, invalid pointer or NULL pointer dereference during MAC verification. Impact summary: The stack buffer overflow or NULL pointer dereference may cause a crash leading to Denial o...

CVE-2025-11187

Issue summary: PBMAC1 parameters in PKCS12 files are missing validation which can trigger a stack-based buffer overflow, invalid pointer or NULL pointer dereference during MAC verification. Impact summary: The stack buffer overflow or NULL pointer dereference may cause a crash leading to Denial o...

UBUNTU-CVE-2025-11187

Issue summary: PBMAC1 parameters in PKCS12 files are missing validation which can trigger a stack-based buffer overflow, invalid pointer or NULL pointer dereference during MAC verification. Impact summary: The stack buffer overflow or NULL pointer dereference may cause a crash leading to Denial o...

Astra Linux – Vulnerability in OpenSSL

Issue Summary: Validation of PBMAC1 parameters in PKCS12 files is missing. This can trigger a stack-based buffer overflow, invalid pointer or NULL pointer dereferencing during MAC verification. Impact Summary: The stack buffer overflow or NULL pointer dereferencing may cause a crash, leading to a...