Vulnerabilities
Misconfiguration
Runtime Security
Compliance
CVE Vulnerabilities

CVE-2016-6304

Missing Release of Memory after Effective Lifetime

Published: Sep 26, 2016 | Modified: Nov 07, 2023
CVSS 3.x
7.5
HIGH
Source:
NVD
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CVSS 2.x
7.8 HIGH
AV:N/AC:L/Au:N/C:N/I:N/A:C
RedHat/V2
5 IMPORTANT
AV:N/AC:L/Au:N/C:N/I:N/A:P
RedHat/V3
7.5 IMPORTANT
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Ubuntu
HIGH
Additional information
NVDhttps://nvd.nist.gov/vuln/detail/CVE-2016-6304
CWEhttps://cwe.mitre.org/data/definitions/401.html

Multiple memory leaks in t1_lib.c in OpenSSL before 1.0.1u, 1.0.2 before 1.0.2i, and 1.1.0 before 1.1.0a allow remote attackers to cause a denial of service (memory consumption) via large OCSP Status Request extensions.

Weakness

The product does not sufficiently track and release allocated memory after it has been used, which slowly consumes remaining memory.

Affected Software

Name Vendor Start Version End Version
Openssl Openssl 1.0.2 (including) 1.0.2 (including)
Openssl Openssl 1.0.2-beta1 (including) 1.0.2-beta1 (including)
Openssl Openssl 1.0.2-beta2 (including) 1.0.2-beta2 (including)
Openssl Openssl 1.0.2-beta3 (including) 1.0.2-beta3 (including)
Openssl Openssl 1.0.2a (including) 1.0.2a (including)
Openssl Openssl 1.0.2b (including) 1.0.2b (including)
Openssl Openssl 1.0.2c (including) 1.0.2c (including)
Openssl Openssl 1.0.2d (including) 1.0.2d (including)
Openssl Openssl 1.0.2e (including) 1.0.2e (including)
Openssl Openssl 1.0.2f (including) 1.0.2f (including)
Openssl Openssl 1.0.2h (including) 1.0.2h (including)
JBoss Core Services on RHEL 6 RedHat jbcs-httpd24-httpd-0:2.4.23-120.jbcs.el6 *
JBoss Core Services on RHEL 6 RedHat jbcs-httpd24-mod_security-0:2.9.1-19.GA.jbcs.el6 *
JBoss Core Services on RHEL 6 RedHat jbcs-httpd24-openssl-1:1.0.2h-13.jbcs.el6 *
JBoss Core Services on RHEL 7 RedHat jbcs-httpd24-httpd-0:2.4.23-120.jbcs.el7 *
JBoss Core Services on RHEL 7 RedHat jbcs-httpd24-mod_security-0:2.9.1-19.GA.jbcs.el7 *
JBoss Core Services on RHEL 7 RedHat jbcs-httpd24-openssl-1:1.0.2h-13.jbcs.el7 *
Red Hat Enterprise Linux 6 RedHat openssl-0:1.0.1e-48.el6_8.3 *
Red Hat Enterprise Linux 6.2 Advanced Update Support RedHat openssl-0:1.0.0-20.el6_2.9 *
Red Hat Enterprise Linux 6.4 Advanced Update Support RedHat openssl-0:1.0.0-27.el6_4.6 *
Red Hat Enterprise Linux 6.5 Advanced Update Support RedHat openssl-0:1.0.1e-16.el6_5.17 *
Red Hat Enterprise Linux 6.5 Telco Extended Update Support RedHat openssl-0:1.0.1e-16.el6_5.17 *
Red Hat Enterprise Linux 6.6 Advanced Update Support RedHat openssl-0:1.0.1e-30.el6_6.13 *
Red Hat Enterprise Linux 6.6 Telco Extended Update Support RedHat openssl-0:1.0.1e-30.el6_6.13 *
Red Hat Enterprise Linux 6.7 Extended Update Support RedHat openssl-0:1.0.1e-42.el6_7.6 *
Red Hat Enterprise Linux 7 RedHat openssl-1:1.0.1e-51.el7_2.7 *
Red Hat JBoss Core Services 1 RedHat *
Red Hat JBoss Enterprise Application Platform 6.4 RedHat openssl *
Red Hat JBoss Enterprise Application Platform 6.4 for RHEL 6 RedHat jbcs-httpd24-openssl-1:1.0.2h-13.jbcs.el6 *
Red Hat JBoss Enterprise Application Platform 6.4 for RHEL 7 RedHat jbcs-httpd24-openssl-1:1.0.2h-13.jbcs.el7 *
Red Hat JBoss Enterprise Web Server 2 for RHEL 6 RedHat jbcs-httpd24-openssl-1:1.0.2h-13.jbcs.el6 *
Red Hat JBoss Enterprise Web Server 2 for RHEL 6 RedHat tomcat6-0:6.0.41-17_patch_04.ep6.el6 *
Red Hat JBoss Enterprise Web Server 2 for RHEL 6 RedHat tomcat7-0:7.0.54-25_patch_05.ep6.el6 *
Red Hat JBoss Enterprise Web Server 2 for RHEL 7 RedHat jbcs-httpd24-openssl-1:1.0.2h-13.jbcs.el7 *
Red Hat JBoss Enterprise Web Server 2 for RHEL 7 RedHat tomcat6-0:6.0.41-17_patch_04.ep6.el7 *
Red Hat JBoss Enterprise Web Server 2 for RHEL 7 RedHat tomcat7-0:7.0.54-25_patch_05.ep6.el7 *
Red Hat JBoss Web Server 2.1 RedHat openssl *
Red Hat JBoss Web Server 3.1 RedHat *
Red Hat JBoss Web Server 3 for RHEL 6 RedHat log4j-eap6-0:1.2.16-12.redhat_3.1.ep6.el6 *
Red Hat JBoss Web Server 3 for RHEL 6 RedHat tomcat7-0:7.0.70-22.ep7.el6 *
Red Hat JBoss Web Server 3 for RHEL 6 RedHat tomcat8-0:8.0.36-24.ep7.el6 *
Red Hat JBoss Web Server 3 for RHEL 6 RedHat tomcat-native-0:1.2.8-10.redhat_10.ep7.el6 *
Red Hat JBoss Web Server 3 for RHEL 7 RedHat log4j-eap6-0:1.2.16-12.redhat_3.1.ep6.el7 *
Red Hat JBoss Web Server 3 for RHEL 7 RedHat tomcat7-0:7.0.70-22.ep7.el7 *
Red Hat JBoss Web Server 3 for RHEL 7 RedHat tomcat8-0:8.0.36-24.ep7.el7 *
Red Hat JBoss Web Server 3 for RHEL 7 RedHat tomcat-native-0:1.2.8-10.redhat_10.ep7.el7 *
Openssl Ubuntu artful *
Openssl Ubuntu bionic *
Openssl Ubuntu cosmic *
Openssl Ubuntu devel *
Openssl Ubuntu disco *
Openssl Ubuntu precise *
Openssl Ubuntu trusty *
Openssl Ubuntu upstream *
Openssl Ubuntu vivid/stable-phone-overlay *
Openssl Ubuntu vivid/ubuntu-core *
Openssl Ubuntu xenial *
Openssl Ubuntu yakkety *
Openssl Ubuntu zesty *
Openssl098 Ubuntu precise *
Openssl098 Ubuntu trusty *

Potential Mitigations

  • Choose a language or tool that provides automatic memory management, or makes manual memory management less error-prone.
  • For example, glibc in Linux provides protection against free of invalid pointers.
  • When using Xcode to target OS X or iOS, enable automatic reference counting (ARC) [REF-391].
  • To help correctly and consistently manage memory when programming in C++, consider using a smart pointer class such as std::auto_ptr (defined by ISO/IEC ISO/IEC 14882:2003), std::shared_ptr and std::unique_ptr (specified by an upcoming revision of the C++ standard, informally referred to as C++ 1x), or equivalent solutions such as Boost.

References

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