CVE-2015-5887
HighSummary
The TLS Handshake Protocol implementation in Secure Transport in Apple OS X before 10.11 accepts a Certificate Request message within a session in which no Server Key Exchange message has been sent, allowing remote attackers to have an unspecified impact via crafted TLS data.
Risk Assessment
Attackers may exploit this vulnerability to conduct attacks on communication security, potentially leading to data exposure or session hijacking.
Recommendation
It is recommended to update the operating system to version 10.11 or later to mitigate this vulnerability.
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Original NVD description (English source)
The TLS Handshake Protocol implementation in Secure Transport in Apple OS X before 10.11 accepts a Certificate Request message within a session in which no Server Key Exchange message has been sent, which allows remote attackers to have an unspecified impact via crafted TLS data.