Bug 1471171 (CVE-2017-7805)

Summary:	CVE-2017-7805 nss: Potential use-after-free in TLS 1.2 server when verifying client authentication
Product:	[Other] Security Response	Reporter:	Adam Mariš <amaris>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED ERRATA	QA Contact:
Severity:	high	Docs Contact:
Priority:	high
Version:	unspecified	CC:	amaris, breakin7, cperry, dueno, elio.maldonado.batiz, grocha, hkario, jrusnack, kdudka, kengert, meissner, nss-nspr-maint, rrelyea, security-response-team, szidek, yozone
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:		Doc Type:	If docs needed, set a value
Doc Text:	A use-after-free flaw was found in the TLS 1.2 implementation in the NSS library when client authentication was used. A malicious client could use this flaw to cause an application compiled against NSS to crash or, potentially, execute arbitrary code with the permission of the user running the application.	Story Points:	---
Clone Of:		Environment:
Last Closed:	2017-09-29 02:18:17 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:	1473508, 1473509, 1473510, 1473511, 1496926
Bug Blocks:	1471174

Description Adam Mariš 2017-07-14 15:05:22 UTC

Potential use-after-free vulnerability in nss in TLS 1.2 server when verifying client authentication was found.

Upstream bug:

https://bugzilla.mozilla.org/show_bug.cgi?id=1377618

Comment 10 Doran Moppert 2017-09-28 04:25:39 UTC

Acknowledgments:

Name: the Mozilla project
Upstream: Martin Thomson

Comment 11 Tomas Hoger 2017-09-28 08:27:10 UTC

Upstream commit:

https://hg.mozilla.org/projects/nss/rev/839200ce0943166a079284bdf45dcc37bb672925

Comment 12 Tomas Hoger 2017-09-28 18:58:30 UTC

Public now via upstream advisories:

https://www.mozilla.org/en-US/security/advisories/mfsa2017-22/
https://www.mozilla.org/en-US/security/advisories/mfsa2017-21/

Comment 13 Tomas Hoger 2017-09-28 19:00:22 UTC

Created nss tracking bugs for this issue:

Affects: fedora-all [bug 1496926]

Comment 14 errata-xmlrpc 2017-09-28 23:58:47 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 6
  Red Hat Enterprise Linux 7

Via RHSA-2017:2832 https://access.redhat.com/errata/RHSA-2017:2832