Bug 1569297 (CVE-2018-10184)

Summary: CVE-2018-10184 haproxy: Heap buffer overflow in mux_h2.c:h2_process_demux() can allow attackers to cause a denial of service
Product: [Other] Security Response Reporter: Sam Fowler <sfowler>
Component: vulnerabilityAssignee: Red Hat Product Security <security-response-team>
Status: CLOSED ERRATA QA Contact:
Severity: high Docs Contact:
Priority: high    
Version: unspecifiedCC: ahardin, bleanhar, bperkins, carl, ccoleman, dedgar, dmcphers, dmoppert, hhorak, jeremy, jgoulding, jokerman, jorton, mchappel, rohara, security-response-team, thoger
Target Milestone: ---Keywords: Security
Target Release: ---   
Hardware: All   
OS: Linux   
Whiteboard:
Fixed In Version: haproxy 1.8.8 Doc Type: If docs needed, set a value
Doc Text:
Story Points: ---
Clone Of: Environment:
Last Closed: 2019-06-10 10:20:09 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: 1569643, 1569660, 1569661, 1569662, 1569783, 1569807, 1569808    
Bug Blocks: 1569301    
Attachments:
Description Flags
Upstream patch none

Description Sam Fowler 2018-04-19 00:43:43 UTC 
HAProxy 1.8.x before version 1.8.8 is vulnerable to a heap-based buffer overflow in the mux_h2.c:h2_process_demux() function. A remote attacker could exploit this to overflow the heap by 16kb to cause a denial of service or other potential unspecified impact.
Comment 1 Sam Fowler 2018-04-19 00:55:25 UTC 
Created attachment 1423836 [details]
Upstream patch
Comment 6 Kurt Seifried 2018-04-19 16:14:00 UTC 
This is now public, upstream reference:

https://www.haproxy.org/download/1.8/src/CHANGELOG
Comment 14 Doran Moppert 2018-04-20 01:52:57 UTC 
This flaw is present in HTTP/2 functionality, which does not exist in haproxy-1.5 as distributed in Red Hat Enterprise Linux 7 and Red Hat Enterprise Linux 6.
Comment 18 Tomas Hoger 2018-04-20 07:44:31 UTC 
Upstream commit:

http://git.haproxy.org/?p=haproxy.git;a=commitdiff;h=3f0e1ec70173593f4c2b3681b26c04a4ed5fc588
Comment 20 Adam Mariš 2018-05-10 06:59:24 UTC 
Rejecting CVE-2018-1119 in favour of CVE-2018-10184 that Mitre assigned.
Comment 21 errata-xmlrpc 2018-05-14 09:12:03 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 7.3 EUS
  Red Hat Software Collections for Red Hat Enterprise Linux 7.4 EUS
  Red Hat Software Collections for Red Hat Enterprise Linux 7.5 EUS

Via RHSA-2018:1372 https://access.redhat.com/errata/RHSA-2018:1372