Public Date:
1331441: CVE-2016-2105 openssl: EVP_EncodeUpdate overflow
An integer overflow flaw, leading to a buffer overflow, was found in the way the EVP_EncodeUpdate() function of OpenSSL parsed very large amounts of input data. A remote attacker could use this flaw to crash an application using OpenSSL or, possibly, execute arbitrary code with the permissions of the user running that application.

Find out more about CVE-2016-2105 from the MITRE CVE dictionary dictionary and NIST NVD.

CVSS v2 metrics

Base Score 5.1
Base Metrics AV:N/AC:H/Au:N/C:P/I:P/A:P
Access Vector Network
Access Complexity High
Authentication None
Confidentiality Impact Partial
Integrity Impact Partial
Availability Impact Partial

CVSS v3 metrics

CVSS3 Base Score 5.6
CVSS3 Base Metrics CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L
Attack Vector Network
Attack Complexity High
Privileges Required None
User Interaction None
Scope Unchanged
Confidentiality Low
Integrity Impact Low
Availability Impact Low

Find out more about Red Hat support for the Common Vulnerability Scoring System (CVSS).

Red Hat Security Errata

Platform Errata Release Date
Red Hat JBoss Enterprise Application Platform 6.4 RHSA-2016:2056 2016-10-12
Red Hat JBoss Enterprise Web Server 2 for RHEL 6 Server RHSA-2016:1649 2016-08-22
Red Hat JBoss Web Server 2.1 RHSA-2016:1650 2016-08-22
Red Hat JBoss Enterprise Web Server 2 for RHEL 7 Server RHSA-2016:1648 2016-08-22
Red Hat Enterprise Linux Extended Update Support 6.7 (openssl) RHSA-2016:2073 2016-10-18
Red Hat Enterprise Linux 6 (openssl) RHSA-2016:0996 2016-05-10
Red Hat JBoss Core Services 1 RHSA-2016:2957 2016-12-15
Red Hat Enterprise Linux 7 (openssl) RHSA-2016:0722 2016-05-09
Unless explicitly stated as not affected, all previous versions of packages in any minor update stream of a product listed here should be assumed vulnerable, although may not have been subject to full analysis.


Red Hat would like to thank the OpenSSL project for reporting this issue. Upstream acknowledges Guido Vranken as the original reporter.

External References

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