CVE-2016-0703 - CVE House
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Status published Medium CVE-2016-0703

The get_client_master_key function in s2_srvr.c in the SSLv2 implementation in...

Vulnerability Description

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.

Impact Analysis

Refer to official advisory for detailed impact metrics.

Remediation

Ensure systems are updated to the latest vendor-supplied patch levels.

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Credits & Attribution

No credits recorded in the NVD database.

References

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Affected Vendor

Affected Software

openssl
Vulnerable Versions:
0, 1.0.0, 1.0.0a, 1.0.0b, 1.0.0c, 1.0.0d, 1.0.0e, 1.0.0f, 1.0.0g, 1.0.0h, 1.0.0i, 1.0.0j, 1.0.0k, 1.0.0l, 1.0.0m, 1.0.0n, 1.0.0o, 1.0.0p, 1.0.0q, 1.0.1, 1.0.1a, 1.0.1b, 1.0.1c, 1.0.1d, 1.0.1e, 1.0.1f, 1.0.1g, 1.0.1h, 1.0.1i, 1.0.1j, 1.0.1k, 1.0.1l, 1.0.2

Timeline

Official Publish: March 2nd, 2016
Last Modified: August 5th, 2024
Added to House: July 20th, 2026

CVSS Vectors

V3: CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N

Weaknesses (CWE)

No CWE data available

MITRE ATT&CK TTPs

No associated TTPs found for this vulnerability.