Out-of-bounds read in OpenSSL - CVE-2012-2333

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Main Vulnerability Database Vulnerabilities #VU32808

Out-of-bounds read in OpenSSL - CVE-2012-2333

Published: May 15, 2012 / Updated: July 28, 2020


Vulnerability identifier: #VU32808
CSH Severity: Medium
CVSS v4: 6.9 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N]
CVE-ID: CVE-2012-2333
CWE-ID: CWE-125
Exploitation vector: Remote access
Exploit availability: No public exploit available

Vulnerability details

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to a boundary error in Integer underflow in OpenSSL before 0.9.8x, 1.0.0 before 1.0.0j, and 1.0.1 before 1.0.1c, when TLS 1.1, TLS 1.2, or DTLS is used with CBC encryption,. A remote attacker can perform a denial of service (buffer over-read) or possibly have unspecified other impact via a crafted TLS packet that is not properly handled during a certain explicit IV calculation.


Affected software

OpenSSL
HP-UX
SSL for OpenVMS
Amazon Linux AMI
SUSE Linux
openssl (Alpine package)

How to mitigate CVE-2012-2333

The vendor has issued the following versions to address this vulnerability: 0.9.8x, 1.0.1c.

OpenSSL - addressed in versions 0.9.8x, 1.0.1c
openssl (Alpine package) - update to 1.0.0j-r0

External References

Related Security Bulletins