Bug 1569297 – CVE-2018-10184 haproxy: Heap buffer overflow in mux_h2.c:h2_process_demux() can allow attackers to cause a denial of service

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Bug 1569297 - (CVE-2018-10184) CVE-2018-10184 haproxy: Heap buffer overflow in mux_h2.c:h2_process_demux() can allow attackers to cause a denial of service

Summary:	CVE-2018-10184 haproxy: Heap buffer overflow in mux_h2.c:h2_process_demux() c...

Status:	NEW

Aliases:	CVE-2018-10184

Product:	Security Response
Classification:	Other
Component:	vulnerability (Show other bugs)
Sub Component:
Version:	unspecified
Hardware:	All Linux

Priority	high Severity high
Target Milestone:	---
Target Release:	---
Assigned To:	Red Hat Product Security
QA Contact:
Docs Contact:

URL:
Whiteboard:	impact=important,public=20180419,repo...
Keywords:	Security

Depends On:	1569643 1569807 1569660 1569661 1569662 1569783 1569808
Blocks:	1569301
	Show dependency tree / graph

Reported:	2018-04-18 20:43 EDT by Sam Fowler
Modified:	2018-06-29 18:36 EDT (History)
CC List:	17 users (show)

See Also:
Fixed In Version:	haproxy 1.8.8
Doc Type:	If docs needed, set a value
Doc Text:
Story Points:	---
Clone Of:
Environment:
Last Closed:
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Regression:	---
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CRM:
Verified Versions:
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oVirt Team:	---
RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---

Attachments	(Terms of Use)
Upstream patch (1.84 KB, patch) 2018-04-18 20:55 EDT, Sam Fowler	no flags	Details \| Diff
Add an attachment (proposed patch, testcase, etc.)

External Trackers
Tracker	ID	Priority	Status	Summary	Last Updated
Red Hat Product Errata	RHSA-2018:1372	None	None	None	2018-05-14 05:12 EDT

Groups: None (edit)

Description Sam Fowler 2018-04-18 20:43:43 EDT

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 2018-04-18 20:55 EDT

Created attachment 1423836 [details]
Upstream patch

Comment 6 Kurt Seifried 2018-04-19 12:14:00 EDT

This is now public, upstream reference:

https://www.haproxy.org/download/1.8/src/CHANGELOG

Comment 14 Doran Moppert 2018-04-19 21:52:57 EDT

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 03:44:31 EDT

Upstream commit:

http://git.haproxy.org/?p=haproxy.git;a=commitdiff;h=3f0e1ec70173593f4c2b3681b26c04a4ed5fc588

Comment 20 Adam Mariš 2018-05-10 02:59:24 EDT

Rejecting CVE-2018-1119 in favour of CVE-2018-10184 that Mitre assigned.

Comment 21 errata-xmlrpc 2018-05-14 05:12:03 EDT

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

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