Bug 1308461 (CVE-2016-1544)

Summary:	CVE-2016-1544 nghttp2: out of memory error due to unlimited incoming HTTP header fields
Product:	[Other] Security Response	Reporter:	Andrej Nemec <anemec>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED NOTABUG	QA Contact:
Severity:	low	Docs Contact:
Priority:	low
Version:	unspecified	CC:	bgollahe, carnil, jorton, kanderso, kdudka, mmaslano
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:	nghttp2 1.7.1	Doc Type:	Bug Fix
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2019-06-08 02:48:21 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:	1308463, 1308467, 1308612
Bug Blocks:

Description Andrej Nemec 2016-02-15 09:48:48 UTC

A vulnerability was found in a way nghttp2 processes incoming packets.
Nghttpd, nghttp, and libnghttp2_asio applications do not limit the
memory usage for the incoming HTTP header field. If peer sends
specially crafted HTTP/2 HEADERS frames and CONTINUATION frames, they
will crash with out of memory error.

Upstream report and fix:

https://github.com/tatsuhiro-t/nghttp2/releases/tag/v1.7.1

Comment 1 Andrej Nemec 2016-02-15 09:49:31 UTC

Created nghttp2 tracking bugs for this issue:

Affects: epel-7 [bug 1308463]

Comment 2 Andrej Nemec 2016-02-15 09:53:11 UTC

Created nghttp2 tracking bugs for this issue:

Affects: fedora-all [bug 1308467]

Comment 3 Tomas Hoger 2016-02-15 15:38:58 UTC

The fix seems to be spread across multiple commits.  The changes between 1.7.0 and 1.7.1 seem almost limited to this issue:

https://github.com/tatsuhiro-t/nghttp2/compare/v1.7.0...v1.7.1

Comment 6 Fedora Update System 2016-02-17 03:49:24 UTC

nghttp2-1.7.1-1.fc23 has been pushed to the Fedora 23 stable repository. If problems still persist, please make note of it in this bug report.

Comment 8 Fedora Update System 2016-02-22 20:50:13 UTC

nghttp2-1.7.1-1.fc22 has been pushed to the Fedora 22 stable repository. If problems still persist, please make note of it in this bug report.

Comment 9 Fedora Update System 2016-02-29 20:56:23 UTC

nghttp2-1.7.1-1.el7 has been pushed to the Fedora EPEL 7 stable repository. If problems still persist, please make note of it in this bug report.