The get_client_master_key function in s2_srvr.c in the SSLv2 implementation in OpenSSL before 0.9.8zf, 1.0.0 before 1.0.0r, 1.0.1 before 1.0.1m, and 1.0.2 before 1.0.2a accepts a nonzero CLIENT-MASTER-KEY CLEAR-KEY-LENGTH value for an arbitrary cipher, which allows man-in-the-middle attackers to determine the MASTER-KEY value and decrypt TLS ciphertext data by leveraging a Bleichenbacher RSA padding oracle, a related issue to CVE-2016-0800.
CVSS Details
- CVSS 3.1 Base Score: 5.9
- CVSS 3.0 Vector: (CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N)
Covered by Rapid7
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Centos_linux | — | Upgrade openssl-staticUpgrade openssl-develUpgrade openssl098eUpgrade openssl-libsUpgrade openssl-perlUpgrade openssl | Jul 6, 2016 | Mar 2, 2016 |
| Cisco Anyconnect | — | Upgrade to the latest version of Cisco Secure Client to resolve this vulnerability. | Dec 16, 2020 | Mar 2, 2016 |
| Debian | — | Upgrade openssl | Jul 30, 2024 | Mar 2, 2016 |
| F5 Big Ip | — | Update F5 BIG-IP to the latest version | Jun 17, 2026 | Mar 10, 2016 |
| Freebsd | — | Upgrade FreeBSD | Dec 10, 2025 | Aug 11, 2016 |
| Gentoo Linux | — | Upgrade dev-libs/openssl. | Oct 30, 2017 | Mar 2, 2016 |
| Http Openssl | — | Upgrade to the latest version of OpenSSL | Mar 2, 2016 | Mar 2, 2016 |
| Oracle_linux | — | Upgrade openssl098e | Mar 9, 2016 | Mar 2, 2016 |
| Panos | — | Update PAN-OS 6.1 to the latest workaround for your deviceUpdate PAN-OS 6.0 to the latest workaround for your device | Oct 18, 2016 | Mar 2, 2016 |
| Pulse Secure Pulse Connect Secure | — | Update Pulse Connect Secure to version 8.1R10Update Pulse Connect Secure to version 7.4R13.7Update Pulse Connect Secure to version 8.2R3Update Pulse Connect Secure to version 8.0R16 | Oct 28, 2020 | Mar 2, 2016 |
| Red Hat Jboss Eap | — | — | Sep 19, 2024 | Mar 1, 2016 |
| Redhat_linux | — | No solution exists | Jul 9, 2025 | Mar 1, 2016 |
| Suse | — | Upgrade libopenssl0_9_8Upgrade sles12-docker-imageUpgrade sles12sp1-docker-imageUpgrade libopenssl1_0_0-32bitUpgrade compat-openssl097gUpgrade openssl-docUpgrade opensslUpgrade compat-openssl097g-32bitUpgrade libopenssl1_0_0-x86Upgrade libopenssl1-develUpgrade libopenssl0_9_8-x86Upgrade libopenssl1_0_0-hmacUpgrade libopenssl1_0_0Upgrade openssl1Upgrade sles11sp4-docker-imageUpgrade libopenssl-develUpgrade libopenssl1_0_0-hmac-32bitUpgrade libopenssl0_9_8-hmac-32bitUpgrade libopenssl0_9_8-hmacUpgrade openssl1-docUpgrade libopenssl0_9_8-32bit | Mar 2, 2016 | Mar 1, 2016 |
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