Description
The SSLv2 protocol, as used in OpenSSL before 1.0.1s and 1.0.2 before 1.0.2g and other products, requires a server to send a ServerVerify message before establishing that a client possesses certain plaintext RSA data, which makes it easier for remote attackers to decrypt TLS ciphertext data by leveraging a Bleichenbacher RSA padding oracle, aka a "DROWN" attack.
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 | nss | 3.13 | — |
| Debian 14 | openssl | 1.0.0c-2 | — |
| Debian 13 | nss | 3.13 | — |
| Debian 13 | openssl | 1.0.0c-2 | — |
| Debian 12 | nss | 3.13 | — |
| Debian 12 | openssl | 1.0.0c-2 | — |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 7 | openssl +4 | 1:1.0.1e-51.el7_2.4 | RHSA-2016:0301 |
| RHEL 7 | openssl098e | 0.9.8e-29.el7_2.3 | RHSA-2016:0372 |
| RHEL 7 | rhev-hypervisor7 | 7.2-20160302.1.el7ev | RHSA-2016:0379 |
| RHEL 6 | openssl +3 | 1.0.1e-42.el6_7.4 | RHSA-2016:0301 |
| RHEL 6 | openssl098e | 0.9.8e-20.el6_7.1 | RHSA-2016:0372 |
| RHEL 6 | rhev-hypervisor7 | 7.2-20160302.1.el6ev | RHSA-2016:0379 |
| RHEL 5 | openssl +2 | 0.9.8e-39.el5_11 | RHSA-2016:0302 |
Show 8 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Red Hat Rhel Mission Critical 6 | openssl +3 | 1.0.0-20.el6_2.8 | RHSA-2016:0303 |
| Red Hat Rhel Mission Critical 5 | openssl +2 | 0.9.8e-12.el5_6.13 | RHSA-2016:0304 |
| RHEL 7.1 EUS | openssl +4 | 1:1.0.1e-42.ael7b_1.10 | RHSA-2016:0305 |
| RHEL 6.6 EUS | openssl +3 | 1.0.1e-30.el6_6.12 | RHSA-2016:0305 |
| RHEL 6.5 AUS | openssl +3 | 1.0.1e-16.el6_5.16 | RHSA-2016:0303 |
| RHEL 6.4 AUS | openssl +3 | 1.0.0-27.el6_4.5 | RHSA-2016:0303 |
| RHEL 5.9 AUS | openssl +2 | 0.9.8e-26.el5_9.5 | RHSA-2016:0304 |
| RHEL 4 ELS | openssl +2 | 0.9.7a-43.23.el4 | RHSA-2016:0306 |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 12 SP1 | compat-openssl098 | 0.9.8j-94.1 | SUSE-SU-2016:0641-1 |
| SLES 12 SP1 | openssl | 1.0.1i-44.1 | SUSE-SU-2016:0620-1 |
| SLES 12 | compat-openssl098 | 0.9.8j-94.1 | SUSE-SU-2016:0641-1 |
| SLES 12 | openssl | 1.0.1i-27.13.1 | SUSE-SU-2016:0617-1 |
| SLES 11 SP4 | compat-openssl097g | 0.9.7g-146.22.41.1 | SUSE-SU-2016:0631-1 |
| SLES 11 SP4 | openssl | 0.9.8j-0.89.1 | SUSE-SU-2016:0624-1 |
| SLES 11 SP3 | openssl | 0.9.8j-0.89.1 | SUSE-SU-2016:0624-1 |
| SLES 11 SP2 | openssl | 0.9.8j-0.89.1 | SUSE-SU-2016:0624-1 |
Show 8 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 11 | openssl1 | 1.0.1g-0.40.1 | SUSE-SU-2016:0621-1 |
| SUSE Studio Onsite 1.3 | openssl | 0.9.8j-0.89.1 | SUSE-SU-2016:0624-1 |
| SLES for SAP 12 SP1 | compat-openssl098 | 0.9.8j-94.1 | SUSE-SU-2016:0641-1 |
| SLES for SAP 12 SP1 | openssl | 1.0.1i-44.1 | SUSE-SU-2016:0620-1 |
| SLES for SAP 12 | openssl | 1.0.1i-27.13.1 | SUSE-SU-2016:0617-1 |
| SLES for SAP 11 SP4 | compat-openssl097g | 0.9.7g-146.22.41.1 | SUSE-SU-2016:0631-1 |
| SLES for SAP 11 SP4 | openssl | 0.9.8j-0.89.1 | SUSE-SU-2016:0624-1 |
| SUSE OpenStack Cloud 5 | openssl | 0.9.8j-0.91.1 | SUSE-SU-2016:1057-1 |
| SUSE Manager Proxy 2.1 | openssl | 0.9.8j-0.91.1 | SUSE-SU-2016:1057-1 |
| SUSE Manager 2.1 | openssl | 0.9.8j-0.91.1 | SUSE-SU-2016:1057-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | openssl-1_1 | 1.1.1l-1.2 | openSUSE-SU-2024:11127-1 |
Oracle Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Oracle Linux 7 | openssl +4 | 1:1.0.1e-51.el7_2.4 | ELSA-2016-0301 |
| Oracle Linux 7 | openssl098e | 0.9.8e-29.el7_2.3 | ELSA-2016-0372 |
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.
Metasploit 1 module
-
SSL/TLS Version Detection
auxiliary/scanner/ssl/ssl_version
GitHub 1 repository
-
anthophilee/A2SV--SSL-VUL-Scan ★ 5 · Jan 1, 2021
A2SV = Auto Scanning to SSL Vulnerability HeartBleed, CCS Injection, SSLv3 POODLE, FREAK... etc Support Vulnerability [CVE-2007-1858] Anonymous Cipher [CVE-2012-4929] CRIME(SPDY) [CVE-2014-0160] CCS …
Sources: PoC-in-GitHub, Metasploit Framework, Exploit-DB — updated daily. Only links are listed; no exploit code is hosted here.
Advisories 22
- RHSA-2016:0379 Red Hat Security Advisory: rhev-hypervisor security, bug fix and enhancement update Red Hat Security Advisories (RHSA) · Sep 21, 2026
- RHSA-2016:0301 Red Hat Security Advisory: openssl security update Red Hat Security Advisories (RHSA) · Sep 21, 2026
- RHSA-2016:0302 Red Hat Security Advisory: openssl security update Red Hat Security Advisories (RHSA) · Sep 21, 2026
- RHSA-2016:0372 Red Hat Security Advisory: openssl098e security update Red Hat Security Advisories (RHSA) · Aug 5, 2026
- RHSA-2016:0306 Red Hat Security Advisory: openssl security update Red Hat Security Advisories (RHSA) · Aug 5, 2026
- RHSA-2016:0304 Red Hat Security Advisory: openssl security update Red Hat Security Advisories (RHSA) · Aug 5, 2026
- RHSA-2016:0305 Red Hat Security Advisory: openssl security update Red Hat Security Advisories (RHSA) · Aug 5, 2026
- RHSA-2016:0303 Red Hat Security Advisory: openssl security update Red Hat Security Advisories (RHSA) · Aug 5, 2026
- SUSE-SU-2016:0621-1 Security update for openssl SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2016:0641-1 Security update for openssl SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2016:1057-1 Security update for openssl SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2016:0617-1 Security update for openssl SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2016:0620-1 Security update for openssl SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2016:0624-1 Security update for openssl SUSE / openSUSE Security Updates · Feb 4, 2026
- WID-SEC-2023-0427 OpenSSL: Mehrere Schwachstellen BSI CERT-Bund (WID) · Nov 2, 2025
- ICSA-16-103-03C Siemens Industrial Products DROWN Vulnerability (Update C) CISA ICS & IT advisories · Jun 5, 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
- SUSE-SU-2016:0631-1 Security update for compat-openssl097g SUSE / openSUSE Security Updates · May 2, 2025
- 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-2016-0372 Important: openssl098e security update (Oracle Linux 7) Oracle Linux Security Advisories (ELSA) · Mar 9, 2016
- ELSA-2016-0301 Important: openssl security update (Oracle Linux 7) Oracle Linux Security Advisories (ELSA) · Mar 1, 2016
References
- https://kc.mcafee.com/corporate/index?page=content&id=SB10154
- http://www.oracle.com/technetwork/topics/security/ovmbulletinjul2016-3090546.html
- https://access.redhat.com/security/vulnerabilities/drown
- HPSBMU03573 vendor-advisory
- https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05307589
- http://www.oracle.com/technetwork/security-advisory/cpujan2018-3236628.html
- https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05157667
- HPSBMU03575 vendor-advisory
- https://h20566.www2.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbgn03726en_us
- https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05176765
- http://www.oracle.com/technetwork/security-advisory/cpujul2016-2881720.html
- http://www.huawei.com/en/psirt/security-advisories/huawei-sa-20160330-01-openssl-en
- openSUSE-SU-2016:0638 vendor-advisory
- FreeBSD-SA-16:12 vendor-advisory
- http://www.oracle.com/technetwork/topics/security/linuxbulletinjan2016-2867209.html
- openSUSE-SU-2016:1239 vendor-advisory
- SUSE-SU-2016:0621 vendor-advisory
- openSUSE-SU-2016:0640 vendor-advisory
- https://security.netapp.com/advisory/ntap-20160301-0001/
- HPSBGN03569 vendor-advisory
- https://ics-cert.us-cert.gov/advisories/ICSA-16-103-03
- http://www.oracle.com/technetwork/topics/security/bulletinapr2016-2952098.html
- https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05096953
- SUSE-SU-2016:1057 vendor-advisory
- https://kb.pulsesecure.net/articles/Pulse_Security_Advisories/SA40168
- VU#583776 third-party-advisory
- https://drownattack.com
- https://help.ecostruxureit.com/display/public/UADCO8x/StruxureWare+Data+Center+Operation+Software+Vulnerability+Fixes
- openSUSE-SU-2016:1241 vendor-advisory
- 20160302 Multiple Vulnerabilities in OpenSSL Affecting Cisco Products: March 2016 vendor-advisory
- https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05086877
- openSUSE-SU-2016:0720 vendor-advisory
- SUSE-SU-2016:0624 vendor-advisory
- 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-c05143554
- 83733 vdb-entry
- https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05141441
- https://h20566.www2.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbhf03741en_us
- RHSA-2016:1519 vendor-advisory
- SUSE-SU-2016:0631 vendor-advisory
- https://www.openssl.org/news/secadv/20160301.txt
- http://www.oracle.com/technetwork/security-advisory/cpuapr2016v3-2985753.html
- 91787 vdb-entry
- SUSE-SU-2016:0617 vendor-advisory
- http://kb.juniper.net/InfoCenter/index?page=content&id=JSA10722
- http://www.siemens.com/cert/pool/cert/siemens_security_advisory_ssa-623229.pdf
- GLSA-201603-15 vendor-advisory
- http://www.oracle.com/technetwork/topics/security/bulletinjan2016-2867206.html
- https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05068681
- http://support.citrix.com/article/CTX208403
- openSUSE-SU-2016:0628 vendor-advisory
- 1035133 vdb-entry
- https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05150800
- SUSE-SU-2016:0678 vendor-advisory
- SUSE-SU-2016:0620 vendor-advisory
- openSUSE-SU-2016:0637 vendor-advisory
- openSUSE-SU-2016:0627 vendor-advisory
- SUSE-SU-2016:0641 vendor-advisory
- https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05073516
- http://kb.juniper.net/InfoCenter/index?page=content&id=JSA10759