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.
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 14 | openssl | 1.0.2h-1 | — |
| Debian 13 | openssl | 1.0.2h-1 | — |
| Debian 12 | openssl | 1.0.2h-1 | — |
| Debian 8 | openssl | 1.0.1k-3+deb8u5 | DSA-3566-1 |
| Debian 7 | openssl | 1.0.1e-2+deb7u21 | DLA-456-1 |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 16.04 LTS | openssl | 1.0.2g-1ubuntu4.1 | USN-2959-1 |
| Ubuntu 14.04 LTS | openssl | 1.0.1f-1ubuntu2.19 | USN-2959-1 |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 7 | openssl +4 | 1:1.0.1e-51.el7_2.5 | RHSA-2016:0722 |
| RHEL 6 | openssl +3 | 1.0.1e-48.el6_8.1 | RHSA-2016:0996 |
Show 1 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 6.7 EUS | openssl +3 | 1.0.1e-42.el6_7.5 | RHSA-2016:2073 |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 12 SP1 | openssl | 1.0.1i-47.1 | SUSE-SU-2016:1233-1 |
| SLES 12 | openssl | 1.0.1i-27.16.1 | SUSE-SU-2016:1228-1 |
| SLES 11 | openssl1 | 1.0.1g-0.47.1 | SUSE-SU-2016:1206-1 |
Show 2 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES for SAP 12 SP1 | openssl | 1.0.1i-47.1 | SUSE-SU-2016:1233-1 |
| SLES for SAP 12 | openssl | 1.0.1i-27.16.1 | SUSE-SU-2016:1228-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | openssl-1_1 | 1.1.1l-1.2 | openSUSE-SU-2024:11127-1 |
Alpine
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.8 | openssl | 1.0.2h-r0 | — |
| Alpine v3.7 | openssl | 1.0.2h-r0 | — |
| Alpine v3.6 | openssl | 1.0.2h-r0 | — |
| Alpine v3.5 | openssl | 1.0.2h-r0 | — |
| Alpine v3.4 | openssl | 1.0.2h-r0 | — |
Show 2 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.3 | openssl | 1.0.2h-r0 | — |
| Alpine v3.2 | openssl | 1.0.2h-r0 | — |
Oracle Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Oracle Linux 7 | openssl +4 | 1:1.0.1e-51.el7_2.5 | ELSA-2016-0722 |
Public exploits
Exploit or proof-of-concept code for this vulnerability is publicly available, which lowers the bar for attackers. Treat it as a reason to patch sooner.
Third-party code, not reviewed by us. Public PoCs are sometimes fake or contain malware. Read the code first and run it only in an isolated lab, against systems you are authorised to test.
Exploit-DB 1
- OpenSSL - Padding Oracle in AES-NI CBC MAC Check EDB-39768 · dos · May 4, 2016 · verified
GitHub 2 repositories
-
FiloSottile/CVE-2016-2107 ★ 191 · May 3, 2016
Simple test for the May 2016 OpenSSL padding oracle (CVE-2016-2107)
-
tmiklas/docker-cve-2016-2107 ★ 2 · Jun 9, 2016
Docker container implementing tests for CVE-2016-2107 - LuckyNegative20
Sources: PoC-in-GitHub, Metasploit Framework, Exploit-DB — updated daily. Only links are listed; no exploit code is hosted here.
Advisories 16
- RHSA-2016:2073 Red Hat Security Advisory: openssl security update Red Hat Security Advisories (RHSA) · Sep 21, 2026
- RHSA-2016:0996 Red Hat Security Advisory: openssl security update Red Hat Security Advisories (RHSA) · Sep 21, 2026
- RHSA-2016:0722 Red Hat Security Advisory: openssl security update Red Hat Security Advisories (RHSA) · Sep 21, 2026
- USN-2959-1 openssl vulnerabilities Ubuntu Security Notices (USN) · Apr 22, 2026
- DLA-456-1 openssl - security update Debian Security (DSA / DLA) · Mar 9, 2026
- DSA-3566-1 openssl - security update Debian Security (DSA / DLA) · Mar 9, 2026
- SUSE-SU-2016:1228-1 Security update for openssl SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2016:1233-1 Security update for openssl SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2016:1206-1 Security update for openssl1 SUSE / openSUSE Security Updates · Feb 4, 2026
- WID-SEC-2026-0180 Dell Data Protection Advisor: Mehrere Schwachstellen BSI CERT-Bund (WID) · Jan 20, 2026
- WID-SEC-2025-1426 Google Android: Mehrere Schwachstellen BSI CERT-Bund (WID) · Jun 30, 2025
- openSUSE-SU-2024:11127-1 libopenssl-1_1-devel-1.1.1l-1.2 on GA media SUSE / openSUSE Security Updates · May 7, 2025
- WID-SEC-2024-0215 OpenSSL: Mehrere Schwachstellen BSI CERT-Bund (WID) · Aug 28, 2024
- ICSA-22-349-21 Siemens SCALANCE X-200RNA Switch Devices CISA ICS & IT advisories · Dec 13, 2022
- SSA-412672 SSA-412672: Multiple OpenSSL and OpenSSH Vulnerabilities in SCALANCE X-200RNA Switch Devices before V3.2.7 Siemens ProductCERT · Dec 13, 2022
- ELSA-2016-0722 Important: openssl security update (Oracle Linux 7) Oracle Linux Security Advisories (ELSA) · May 9, 2016
References
- https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05320149
- SSA:2016-124-01 vendor-advisory
- openSUSE-SU-2016:1238 vendor-advisory
- http://www.oracle.com/technetwork/security-advisory/cpujul2018-4258247.html
- http://www.oracle.com/technetwork/security-advisory/cpujan2018-3236628.html
- RHSA-2016:2073 vendor-advisory
- https://h20566.www2.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbhf03765en_us
- DSA-3566 vendor-advisory
- https://h20566.www2.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbgn03726en_us
- http://www.oracle.com/technetwork/topics/security/linuxbulletinapr2016-2952096.html
- http://packetstormsecurity.com/files/136912/Slackware-Security-Advisory-openssl-Updates.html
- http://www.oracle.com/technetwork/security-advisory/cpujul2016-2881720.html
- https://kc.mcafee.com/corporate/index?page=content&id=SB10160
- openSUSE-SU-2016:1243 vendor-advisory
- GLSA-201612-16 vendor-advisory
- SUSE-SU-2016:1228 vendor-advisory
- https://h20566.www2.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbgn03728en_us
- 1035721 vdb-entry
- http://support.citrix.com/article/CTX212736
- SUSE-SU-2016:1206 vendor-advisory
- FEDORA-2016-1e39d934ed vendor-advisory
- 20160504 Multiple Vulnerabilities in OpenSSL Affecting Cisco Products: May 2016 vendor-advisory
- http://www.oracle.com/technetwork/security-advisory/cpuoct2016-2881722.html
- https://h20566.www2.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbhf03756en_us
- http://www.oracle.com/technetwork/topics/security/bulletinapr2016-2952098.html
- http://www.oracle.com/technetwork/security-advisory/cpuoct2017-3236626.html
- FEDORA-2016-1411324654 vendor-advisory
- openSUSE-SU-2016:1240 vendor-advisory
- https://git.openssl.org/?p=openssl.git%3Ba=commit%3Bh=68595c0c2886e7942a14f98c17a55a88afb6c292
- https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05164862
- openSUSE-SU-2016:1566 vendor-advisory
- APPLE-SA-2016-07-18-1 vendor-advisory
- https://blog.cloudflare.com/yet-another-padding-oracle-in-openssl-cbc-ciphersuites/
- https://www.tenable.com/security/tns-2016-18
- https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05390722
- SUSE-SU-2016:1233 vendor-advisory
- http://source.android.com/security/bulletin/2016-07-01.html
- https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05386804
- openSUSE-SU-2016:1237 vendor-advisory
- https://kb.pulsesecure.net/articles/Pulse_Security_Advisories/SA40202
- RHSA-2016:0996 vendor-advisory
- http://www.oracle.com/technetwork/security-advisory/cpuoct2018-4428296.html
- https://security.netapp.com/advisory/ntap-20160504-0001/
- 91787 vdb-entry
- 89760 vdb-entry
- RHSA-2016:2957 vendor-advisory
- USN-2959-1 vendor-advisory
- http://www.oracle.com/technetwork/security-advisory/cpujul2017-3236622.html
- http://web-in-security.blogspot.ca/2016/05/curious-padding-oracle-in-openssl-cve.html
- RHSA-2016:0722 vendor-advisory
- FreeBSD-SA-16:17 vendor-advisory
- https://www.openssl.org/news/secadv/20160503.txt
- https://support.apple.com/HT206903
- https://bto.bluecoat.com/security-advisory/sa123
- FEDORA-2016-05c567df1a vendor-advisory
- 39768 exploit
- http://kb.juniper.net/InfoCenter/index?page=content&id=JSA10759
- https://cert-portal.siemens.com/productcert/pdf/ssa-412672.pdf