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fix crash when logging TLS 1.3 properties (CVE-2017-10872) #1543

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kazuho opened this issue Dec 14, 2017 · 1 comment
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fix crash when logging TLS 1.3 properties (CVE-2017-10872) #1543

kazuho opened this issue Dec 14, 2017 · 1 comment
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@kazuho
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kazuho commented Dec 14, 2017 •
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The server segfaults when trying to emit the bits of a TLS 1.3 cipher-suite being used to the access-log (by specifying %{ssl.cipher-bits}x).

To avoid the issue, users are advised to upgrade to version 2.2.4 or to disable the use of TLS 1.3 (by setting the maximum-version to 1.2).

The issue was reported by @herumi in #1465.
@h2o h2o locked and limited conversation to collaborators Dec 14, 2017
@kazuho kazuho changed the title test fix crash when logging TLS 1.3 properties (CVE-2017-1087) Dec 15, 2017
@kazuho kazuho changed the title fix crash when logging TLS 1.3 properties (CVE-2017-1087) fix crash when logging TLS 1.3 properties (CVE-2017-10872) Dec 15, 2017
@h2o h2o unlocked this conversation Dec 15, 2017
@kazuho kazuho closed this as completed Jan 12, 2018
@kirotawa
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Hi, what is the commit id/sha that fix this issue?

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@kazuho @kirotawa