Bug 1463199 (CVE-2017-7659)

Summary: CVE-2017-7659 httpd: mod_http2 NULL pointer dereference
Product: [Other] Security Response Reporter: Andrej Nemec <anemec>
Component: vulnerabilityAssignee: Red Hat Product Security <security-response-team>
Status: CLOSED ERRATA QA Contact:
Severity: medium Docs Contact:
Priority: medium    
Version: unspecifiedCC: aogburn, apintea, apmukher, bkundal, bmaxwell, cdewolf, chazlett, csutherl, darran.lofthouse, dimitris, dosoudil, fgavrilo, gzaronik, hhorak, jawilson, jclere, jdoyle, jkaluza, jondruse, jorton, jshepherd, lgao, luhliari, mbabacek, mturk, myarboro, pahan, pgier, pjurak, ppalaga, psakar, pslavice, rnetuka, rstancel, rsvoboda, sardella, sstavrev, twalsh, vtunka, weli
Target Milestone: ---Keywords: Security
Target Release: ---   
Hardware: All   
OS: Linux   
Whiteboard:
Fixed In Version: httpd 2.4.26 Doc Type: If docs needed, set a value
Doc Text:
A NULL pointer dereference flaw was found in the mod_http2 module of httpd. A remote attacker could use this flaw to cause httpd child process to crash via a specially crafted HTTP/2 request.
Story Points: ---
Clone Of: Environment:
Last Closed: 2017-08-17 07:38:43 UTC Type: ---
Regression: --- Mount Type: ---
Documentation: --- CRM:
Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Embargoed:
Bug Depends On: 1463208, 1465916, 1473691    
Bug Blocks: 1463212, 1464082    

Description Andrej Nemec 2017-06-20 11:23:55 UTC
It was found in httpd that a maliciously constructed HTTP/2 request could cause mod_http2 to dereference a NULL pointer and crash the server process.

External References:

https://httpd.apache.org/security/vulnerabilities_24.html

Comment 1 Andrej Nemec 2017-06-20 11:37:46 UTC
Created httpd tracking bugs for this issue:

Affects: fedora-all [bug 1463208]

Comment 2 Tomas Hoger 2017-06-22 12:27:21 UTC
Upstream commit (trunk):

https://github.com/apache/httpd/commit/672187c168b94b562d8065e08e2cad5b00cdd0e3

Backported to 2.4 as part of a larger commit with other changes:

https://github.com/apache/httpd/commit/bc6ad1ef31f2c9e8f5eb453293a4b9caceaa191d

Comment 11 errata-xmlrpc 2017-08-16 23:06:52 UTC
This issue has been addressed in the following products:

  Red Hat Software Collections for Red Hat Enterprise Linux 7
  Red Hat Software Collections for Red Hat Enterprise Linux 6
  Red Hat Software Collections for Red Hat Enterprise Linux 6.7 EUS
  Red Hat Software Collections for Red Hat Enterprise Linux 7.3 EUS

Via RHSA-2017:2483 https://access.redhat.com/errata/RHSA-2017:2483