Bug 1383883 – CVE-2016-5285 nss: Missing NULL check in PK11_SignWithSymKey / ssl3_ComputeRecordMACConstantTime causes server crash

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Bug 1383883 - (CVE-2016-5285) CVE-2016-5285 nss: Missing NULL check in PK11_SignWithSymKey / ssl3_ComputeRecordMACConstantTime causes server crash

Summary:	CVE-2016-5285 nss: Missing NULL check in PK11_SignWithSymKey / ssl3_ComputeRe...

Status:	CLOSED ERRATA

Aliases:	CVE-2016-5285

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

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

URL:
Whiteboard:	impact=moderate,public=20161116,repor...
Keywords:	Security

Duplicates:	1374803 1380235 (view as bug list)
Depends On:	1383884 1383885 1383886 1383887 1383888 1395535 1429932 1429933
Blocks:	1377248 1374803 1380228
	Show dependency tree / graph

Reported:	2016-10-11 23:55 EDT by Huzaifa S. Sidhpurwala
Modified:	2017-03-16 11:25 EDT (History)
CC List:	8 users (show)

See Also:
Fixed In Version:
Doc Type:	If docs needed, set a value
Doc Text:	A NULL pointer dereference flaw was found in the way NSS handled invalid Diffie-Hellman keys. A remote client could use this flaw to crash a TLS/SSL server using NSS.
Story Points:	---
Clone Of:
Environment:
Last Closed:	2016-11-16 01:16:37 EST
Type:	---
Regression:	---
Mount Type:	---
Documentation:	---
CRM:
Verified Versions:
Category:	---
oVirt Team:	---
RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---

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External Trackers
Tracker	ID	Priority	Status	Summary	Last Updated
Mozilla Foundation	1306103	None	None	None	2016-10-31 12:53 EDT
Red Hat Product Errata	RHSA-2016:2779	normal	SHIPPED_LIVE	Moderate: nss and nss-util security update	2016-11-22 08:49:09 EST

Groups: None (edit)

Description Huzaifa S. Sidhpurwala 2016-10-11 23:55:44 EDT

A flaw was found in the way a NSS server could be crashed remotely by a client sending an invalid DH key.

Comment 2 Huzaifa S. Sidhpurwala 2016-11-13 22:39:09 EST

Upstream commit:

https://hg.mozilla.org/projects/nss/rev/45c047d18ac4

Comment 3 Huzaifa S. Sidhpurwala 2016-11-14 02:26:34 EST

*** Bug 1380235 has been marked as a duplicate of this bug. ***

Comment 5 errata-xmlrpc 2016-11-16 00:59:12 EST

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 6
  Red Hat Enterprise Linux 7
  Red Hat Enterprise Linux 5

Via RHSA-2016:2779 https://rhn.redhat.com/errata/RHSA-2016-2779.html

Comment 6 Huzaifa S. Sidhpurwala 2016-11-16 01:16:00 EST

Created nss tracking bugs for this issue:

Affects: fedora-all [bug 1395535]

Comment 7 Hubert Kario 2016-11-30 10:56:22 EST

*** Bug 1374803 has been marked as a duplicate of this bug. ***

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