Bug 1391818 (CVE-2016-8635) - CVE-2016-8635 nss: small-subgroups attack flaw
Summary: CVE-2016-8635 nss: small-subgroups attack flaw
Status: CLOSED ERRATA
Alias: CVE-2016-8635
Product: Security Response
Classification: Other
Component: vulnerability   
(Show other bugs)
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Red Hat Product Security
QA Contact:
URL:
Whiteboard: impact=moderate,public=20161116,repor...
Keywords: Security
Depends On:
Blocks: 1380228 1391819
TreeView+ depends on / blocked
 
Reported: 2016-11-04 06:40 UTC by Huzaifa S. Sidhpurwala
Modified: 2016-12-07 02:13 UTC (History)
7 users (show)

Fixed In Version:
Doc Type: If docs needed, set a value
Doc Text:
It was found that Diffie Hellman Client key exchange handling in NSS was vulnerable to small subgroup confinement attack. An attacker could use this flaw to recover private keys by confining the client DH key to small subgroup of the desired group.
Story Points: ---
Clone Of:
Environment:
Last Closed: 2016-11-16 06:12:27 UTC
Type: ---
Regression: ---
Mount Type: ---
Documentation: ---
CRM:
Verified Versions:
Category: ---
oVirt Team: ---
RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: ---


Attachments (Terms of Use)


External Trackers
Tracker ID Priority Status Summary Last Updated
Red Hat Product Errata RHSA-2016:2779 normal SHIPPED_LIVE Moderate: nss and nss-util security update 2016-11-22 13:49:09 UTC

Description Huzaifa S. Sidhpurwala 2016-11-04 06:40:23 UTC
It was found that Diffie Hellman Client key exchange handling in NSS, was vulnerable to small subgroup confinement attack[1]. An attacker could use this flaw to recover private keys by confining the client DH key to small subgroup of the desired group.


[1] https://en.wikipedia.org/wiki/Small_subgroup_confinement_attack

Comment 4 Huzaifa S. Sidhpurwala 2016-11-15 04:31:06 UTC
Acknowledgments:

Name: Hubert Kario (Red Hat)

Comment 7 errata-xmlrpc 2016-11-16 05:59:43 UTC
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


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