Bug 1470750 (CVE-2017-9789) - CVE-2017-9789 httpd: Read after free in mod_http2
Summary: CVE-2017-9789 httpd: Read after free in mod_http2
Keywords:
Status: CLOSED NOTABUG
Alias: CVE-2017-9789
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
high
high
Target Milestone: ---
Assignee: Red Hat Product Security
QA Contact:
URL:
Whiteboard:
Depends On: 1470756
Blocks: 1470755
TreeView+ depends on / blocked
 
Reported: 2017-07-13 14:55 UTC by Adam Mariš
Modified: 2021-02-17 01:56 UTC (History)
36 users (show)

Fixed In Version: httpd 2.4.27
Clone Of:
Environment:
Last Closed: 2019-06-08 03:16:32 UTC
Embargoed:

Attachments (Terms of Use)

Description Adam Mariš 2017-07-13 14:55:07 UTC 
When under stress while closing many connections, the HTTP/2 handling code would sometimes access memory after it has been freed, resulting in potentially erratic behaviour.

Affected version: 2.4.26

External References:

https://httpd.apache.org/security/vulnerabilities_24.html#2.4.27
Comment 1 Adam Mariš 2017-07-13 15:02:30 UTC 
Created httpd tracking bugs for this issue:

Affects: fedora-all [bug 1470756]
Comment 2 Stefan Cornelius 2017-07-20 09:10:19 UTC 
Patch:
http://svn.apache.org/viewvc?view=revision&revision=1800774
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