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FreeBSD: h2o -- use after free on premature connection close

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FreeBSD: h2o -- use after free on premature connection close

Severity
4
CVSS
(AV:L/AC:M/Au:N/C:P/I:P/A:P)
Published
05/17/2016
Created
07/25/2018
Added
06/02/2016
Modified
06/02/2016

Description

Tim Newsha reports: When H2O tries to disconnect a premature HTTP/2 connection, it calls free(3) to release memory allocated for the connection and immediately after then touches the memory. No malloc-related operation is performed by the same thread between the time it calls free and the time the memory is touched. Fixed by Frederik Deweerdt.

Solution(s)

  • freebsd-upgrade-package-h2o

References

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