CVE-2016-6302: Input Validation
First published: Tue Aug 23 2016(Updated: )
An integer underflow flaw leading to a buffer over-read was found in the way OpenSSL parsed TLS session tickets. A remote attacker could use this flaw to crash a TLS server using OpenSSL if it used SHA-512 as HMAC for session tickets.
Credit: secalert@redhat.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| redhat/jbcs-httpd24-apache-commons-daemon | <0:1.1.0-1.redhat_2.1.jbcs.el6 | 0:1.1.0-1.redhat_2.1.jbcs.el6 |
| redhat/jbcs-httpd24-apache-commons-daemon-jsvc | <1:1.1.0-1.redhat_2.jbcs.el6 | 1:1.1.0-1.redhat_2.jbcs.el6 |
| redhat/jbcs-httpd24-apr | <0:1.6.3-14.jbcs.el6 | 0:1.6.3-14.jbcs.el6 |
| redhat/jbcs-httpd24-apr-util | <0:1.6.1-9.jbcs.el6 | 0:1.6.1-9.jbcs.el6 |
| redhat/jbcs-httpd24-httpd | <0:2.4.29-17.jbcs.el6 | 0:2.4.29-17.jbcs.el6 |
| redhat/jbcs-httpd24-nghttp2 | <0:1.29.0-8.jbcs.el6 | 0:1.29.0-8.jbcs.el6 |
| redhat/jbcs-httpd24-openssl | <1:1.0.2n-11.jbcs.el6 | 1:1.0.2n-11.jbcs.el6 |
| redhat/jbcs-httpd24-apache-commons-daemon | <0:1.1.0-1.redhat_2.1.jbcs.el7 | 0:1.1.0-1.redhat_2.1.jbcs.el7 |
| redhat/jbcs-httpd24-apache-commons-daemon-jsvc | <1:1.1.0-1.redhat_2.jbcs.el7 | 1:1.1.0-1.redhat_2.jbcs.el7 |
| redhat/jbcs-httpd24-apr | <0:1.6.3-14.jbcs.el7 | 0:1.6.3-14.jbcs.el7 |
| redhat/jbcs-httpd24-apr-util | <0:1.6.1-9.jbcs.el7 | 0:1.6.1-9.jbcs.el7 |
| redhat/jbcs-httpd24-httpd | <0:2.4.29-17.jbcs.el7 | 0:2.4.29-17.jbcs.el7 |
| redhat/jbcs-httpd24-nghttp2 | <0:1.29.0-8.jbcs.el7 | 0:1.29.0-8.jbcs.el7 |
| redhat/jbcs-httpd24-openssl | <1:1.0.2n-11.jbcs.el7 | 1:1.0.2n-11.jbcs.el7 |
| redhat/openssl | <0:1.0.1e-48.el6_8.3 | 0:1.0.1e-48.el6_8.3 |
| redhat/openssl | <1:1.0.1e-51.el7_2.7 | 1:1.0.1e-51.el7_2.7 |
| redhat/openssl | <1.0.1 | 1.0.1 |
| redhat/openssl | <1.0.2 | 1.0.2 |
| OpenSSL libcrypto | =1.0.1 | |
| OpenSSL libcrypto | =1.0.1a | |
| OpenSSL libcrypto | =1.0.1b | |
| OpenSSL libcrypto | =1.0.1c | |
| OpenSSL libcrypto | =1.0.1d | |
| OpenSSL libcrypto | =1.0.1e | |
| OpenSSL libcrypto | =1.0.1f | |
| OpenSSL libcrypto | =1.0.1g | |
| OpenSSL libcrypto | =1.0.1h | |
| OpenSSL libcrypto | =1.0.1i | |
| OpenSSL libcrypto | =1.0.1j | |
| OpenSSL libcrypto | =1.0.1k | |
| OpenSSL libcrypto | =1.0.1l | |
| OpenSSL libcrypto | =1.0.1m | |
| OpenSSL libcrypto | =1.0.1n | |
| OpenSSL libcrypto | =1.0.1o | |
| OpenSSL libcrypto | =1.0.1p | |
| OpenSSL libcrypto | =1.0.1q | |
| OpenSSL libcrypto | =1.0.1r | |
| OpenSSL libcrypto | =1.0.1s | |
| OpenSSL libcrypto | =1.0.1t | |
| OpenSSL libcrypto | =1.0.2 | |
| OpenSSL libcrypto | =1.0.2a | |
| OpenSSL libcrypto | =1.0.2b | |
| OpenSSL libcrypto | =1.0.2c | |
| OpenSSL libcrypto | =1.0.2d | |
| OpenSSL libcrypto | =1.0.2e | |
| OpenSSL libcrypto | =1.0.2f | |
| OpenSSL libcrypto | =1.0.2g | |
| OpenSSL libcrypto | =1.0.2h | |
| Oracle Linux | =6 | |
| Oracle Linux | =7 | |
| Oracle Solaris SPARC | =10 | |
| Oracle Solaris SPARC | =11.3 | |
| debian/openssl | 1.1.1w-0+deb11u1 1.1.1w-0+deb11u2 3.0.15-1~deb12u1 3.0.14-1~deb12u2 3.4.0-2 3.4.1-1 |
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Reference Links
- https://www.cve.org/CVERecord?id=CVE-2016-6302 https://nvd.nist.gov/vuln/detail/CVE-2016-6302 https://www.openssl.org/news/secadv/20160922.txt
- https://bugzilla.redhat.com/show_bug.cgi?id=1369855
- https://access.redhat.com/errata/RHSA-2018:2186
- https://access.redhat.com/errata/RHSA-2018:2185
- https://access.redhat.com/errata/RHSA-2016:1940
- https://access.redhat.com/errata/RHSA-2018:2187
- https://access.redhat.com/security/cve/CVE-2016-6302
- http://kb.juniper.net/InfoCenter/index?page=content&id=JSA10759
- http://rhn.redhat.com/errata/RHSA-2016-1940.html
- http://www-01.ibm.com/support/docview.wss?uid=swg21995039
- http://www.oracle.com/technetwork/security-advisory/cpuapr2018-3678067.html
- http://www.oracle.com/technetwork/security-advisory/cpujan2018-3236628.html
- http://www.oracle.com/technetwork/security-advisory/cpujul2017-3236622.html
- http://www.oracle.com/technetwork/security-advisory/cpuoct2016-2881722.html
- http://www.oracle.com/technetwork/security-advisory/cpuoct2017-3236626.html
- http://www.oracle.com/technetwork/topics/security/bulletinoct2016-3090566.html
- http://www.oracle.com/technetwork/topics/security/linuxbulletinoct2016-3090545.html
- http://www.oracle.com/technetwork/topics/security/ovmbulletinoct2016-3090547.html
- http://www.securityfocus.com/bid/92628
- http://www.securitytracker.com/id/1036885
- http://www.splunk.com/view/SP-CAAAPSV
- http://www.splunk.com/view/SP-CAAAPUE
- https://bto.bluecoat.com/security-advisory/sa132
- https://cert-portal.siemens.com/productcert/pdf/ssa-412672.pdf
- https://git.openssl.org/?p=openssl.git;a=commit;h=e97763c92c655dcf4af2860b3abd2bc4c8a267f9
- https://kb.pulsesecure.net/articles/Pulse_Security_Advisories/SA40312
- https://security.FreeBSD.org/advisories/FreeBSD-SA-16:26.openssl.asc
- https://www.tenable.com/security/tns-2016-16
- https://www.tenable.com/security/tns-2016-20
- https://www.tenable.com/security/tns-2016-21
- http://kb.juniper.net/InfoCenter/index?page=content&id=JSA10759
- https://launchpad.net/bugs/cve/CVE-2016-6302
- https://git.openssl.org/?p=openssl.git%3Ba=commit%3Bh=e97763c92c655dcf4af2860b3abd2bc4c8a267f9
- https://github.com/openssl/openssl/commit/1bbe48ab149893a78bf99c8eb8895c928900a16f
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=1369861
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=1369858
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=1369860
- https://www.openssl.org/news/secadv/20160922.txt
- https://rhn.redhat.com/errata/RHSA-2016-1940.html
- https://security-tracker.debian.org/tracker/CVE-2016-6302
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-6302
- https://nvd.nist.gov/vuln/detail/CVE-2016-6302
- https://ubuntu.com/security/CVE-2016-6302
Parent vulnerabilities
(Appears in the following advisories)
Frequently Asked Questions
What is the severity of CVE-2016-6302?
CVE-2016-6302 is considered a critical severity vulnerability due to its potential to crash TLS servers.
How do I fix CVE-2016-6302?
To fix CVE-2016-6302, you should upgrade to the latest versions of the affected software packages listed in the vulnerability details.
What causes CVE-2016-6302?
CVE-2016-6302 is caused by an integer underflow flaw in OpenSSL when parsing TLS session tickets.
Is CVE-2016-6302 exploitable over the network?
Yes, CVE-2016-6302 can be exploited remotely, allowing attackers to crash servers using vulnerable versions of OpenSSL.
What versions of OpenSSL are affected by CVE-2016-6302?
CVE-2016-6302 affects various versions of OpenSSL, particularly those prior to the patched versions that address this vulnerability.
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