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IBM HTTP Server: CVE-2020-9490: Push Diary Crash on Specifically Crafted HTTP/2 Header

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IBM HTTP Server: CVE-2020-9490: Push Diary Crash on Specifically Crafted HTTP/2 Header

Severity
5
CVSS
(AV:N/AC:L/Au:N/C:N/I:N/A:P)
Published
08/07/2020
Created
02/17/2021
Added
02/16/2021
Modified
02/16/2021

Description

Apache HTTP Server versions 2.4.20 to 2.4.43. A specially crafted value for the 'Cache-Digest' header in a HTTP/2 request would result in a crash when the server actually tries to HTTP/2 PUSH a resource afterwards. Configuring the HTTP/2 feature via "H2Push off" will mitigate this vulnerability for unpatched servers.

Solution(s)

  • ibm-http_server-apply-fix-pack-9_0_5_5

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