CVE-2016-2107

LOW

Description

The AES-NI implementation in OpenSSL before 1.0.1t and 1.0.2 before 1.0.2h does not consider memory allocation during a certain padding check, which allows remote attackers to obtain sensitive cleartext information via a padding-oracle attack against an AES CBC session. NOTE: this vulnerability exists because of an incorrect fix for CVE-2013-0169.

References

http://kb.juniper.net/InfoCenter/index?page=content&id=JSA10759

http://lists.apple.com/archives/security-announce/2016/Jul/msg00000.html

http://lists.fedoraproject.org/pipermail/package-announce/2016-May/183457.html

http://lists.fedoraproject.org/pipermail/package-announce/2016-May/183607.html

http://lists.fedoraproject.org/pipermail/package-announce/2016-May/184605.html

http://lists.opensuse.org/opensuse-security-announce/2016-05/msg00001.html

http://lists.opensuse.org/opensuse-security-announce/2016-05/msg00008.html

http://lists.opensuse.org/opensuse-security-announce/2016-05/msg00011.html

http://lists.opensuse.org/opensuse-security-announce/2016-05/msg00013.html

http://lists.opensuse.org/opensuse-security-announce/2016-05/msg00014.html

http://lists.opensuse.org/opensuse-security-announce/2016-05/msg00016.html

http://lists.opensuse.org/opensuse-security-announce/2016-05/msg00019.html

http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00019.html

http://packetstormsecurity.com/files/136912/Slackware-Security-Advisory-openssl-Updates.html

http://rhn.redhat.com/errata/RHSA-2016-0722.html

http://rhn.redhat.com/errata/RHSA-2016-0996.html

http://rhn.redhat.com/errata/RHSA-2016-2073.html

http://rhn.redhat.com/errata/RHSA-2016-2957.html

http://source.android.com/security/bulletin/2016-07-01.html

http://support.citrix.com/article/CTX212736

http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20160504-openssl

http://web-in-security.blogspot.ca/2016/05/curious-padding-oracle-in-openssl-cve.html

http://www.debian.org/security/2016/dsa-3566

http://www.oracle.com/technetwork/security-advisory/cpujan2018-3236628.html

http://www.oracle.com/technetwork/security-advisory/cpujul2016-2881720.html

http://www.oracle.com/technetwork/security-advisory/cpujul2017-3236622.html

http://www.oracle.com/technetwork/security-advisory/cpujul2018-4258247.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/security-advisory/cpuoct2018-4428296.html

http://www.oracle.com/technetwork/topics/security/bulletinapr2016-2952098.html

http://www.oracle.com/technetwork/topics/security/linuxbulletinapr2016-2952096.html

http://www.securityfocus.com/bid/89760

http://www.securityfocus.com/bid/91787

http://www.securitytracker.com/id/1035721

http://www.slackware.com/security/viewer.php?l=slackware-security&y=2016&m=slackware-security.542103

http://www.ubuntu.com/usn/USN-2959-1

https://blog.cloudflare.com/yet-another-padding-oracle-in-openssl-cbc-ciphersuites/

https://bto.bluecoat.com/security-advisory/sa123

https://git.openssl.org/?p=openssl.git;a=commit;h=68595c0c2886e7942a14f98c17a55a88afb6c292

https://h20566.www2.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbgn03726en_us

https://h20566.www2.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbgn03728en_us

https://h20566.www2.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbhf03756en_us

https://h20566.www2.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbhf03765en_us

https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05164862

https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05320149

https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05386804

https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05390722

https://kb.pulsesecure.net/articles/Pulse_Security_Advisories/SA40202

https://kc.mcafee.com/corporate/index?page=content&id=SB10160

https://security.gentoo.org/glsa/201612-16

https://security.netapp.com/advisory/ntap-20160504-0001/

https://support.apple.com/HT206903

https://www.exploit-db.com/exploits/39768/

https://www.freebsd.org/security/advisories/FreeBSD-SA-16:17.openssl.asc

https://www.openssl.org/news/secadv/20160503.txt

https://www.tenable.com/security/tns-2016-18

Details

Source: MITRE

Published: 2016-05-05

Updated: 2018-10-30

Type: CWE-310

Risk Information

CVSS v2.0

Base Score: 2.6

Vector: AV:N/AC:H/Au:N/C:P/I:N/A:N

Impact Score: 2.9

Exploitability Score: 4.9

Severity: LOW

CVSS v3.0

Base Score: 5.9

Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N

Impact Score: 3.6

Exploitability Score: 2.2

Severity: MEDIUM