Cryptographic issues in OpenSSL - CVE-2012-0884

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Main Vulnerability Database Vulnerabilities #VU32820

Cryptographic issues in OpenSSL - CVE-2012-0884

Published: March 13, 2012 / Updated: July 28, 2020


Vulnerability identifier: #VU32820
CSH Severity: Medium
CVSS v4: 6.9 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N]
CVE-ID: CVE-2012-0884
CWE-ID: CWE-310
Exploitation vector: Remote access
Exploit availability: No public exploit available

Vulnerability details

The vulnerability allows a remote non-authenticated attacker to gain access to sensitive information.

The implementation of Cryptographic Message Syntax (CMS) and PKCS #7 in OpenSSL before 0.9.8u and 1.x before 1.0.0h does not properly restrict certain oracle behavior, which makes it easier for context-dependent attackers to decrypt data via a Million Message Attack (MMA) adaptive chosen ciphertext attack.


Affected software

OpenSSL
openssl (Alpine package)

How to mitigate CVE-2012-0884

Install update from vendor's website.

OpenSSL - addressed in versions 0.9.8u, 1.0.0h
openssl (Alpine package) - update to 1.0.0h-r0

External References

Related Security Bulletins