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heap buffer overflow while trying to emit access log (CVE-2018-0608)#1775

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kazuho opened this issue May 31, 2018 · 2 comments
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heap buffer overflow while trying to emit access log (CVE-2018-0608) #1775

kazuho opened this issue May 31, 2018 · 2 comments
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@kazuho
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kazuho commented May 31, 2018 •
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H2O up to version 2.2.4 has a bug that would allow an remote attacker to trigger a heap buffer overflow while the server attempts to emit an access log line.

Users should update to 2.2.5 as soon as possible, or disable access logging.

We would like to thank Marlies Ruck, ForAllSecure for finding the issue.
@kazuho kazuho changed the title TBD heap buffer overflow while trying to emit access log (CVE-2018-0608) Jun 1, 2018
@ghostghost mentioned this issue Jun 1, 2018
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@proyb6
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proyb6 commented Jun 1, 2018

The v2.2.5 archive contains the old mruby-iijson dependency in contrast with the master branch.

@kazuho
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kazuho commented Jun 1, 2018

@proyb6 This is a bug fix release. Change of the JSON implementation was not a result of a bug.

@kazuho kazuho closed this as completed Aug 21, 2019
@dbrumley dbrumley mentioned this issue Jun 3, 2020
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@kazuho @proyb6