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Red Hat: RHSA-2015:1699-01 Moderate: nss-softokn Signature Forgery Risk

red hat
Calendar Grey September 1, 2015
Dist Redhat Esm H88
New nss-softokn updates are now available for Red Hat Enterprise Linux, resolving a significant security concern related to signature verification.
Updated nss-softokn packages that fix one security issue are now available for Red Hat Enterprise Linux 6 and 7

Solution

Before applying this update, make sure all previously released errata relevant to your system have been applied.

For details on how to apply this update, refer to:

https://access.redhat.com/articles/11258

Summary

Network Security Services (NSS) is a set of libraries designed to support cross-platform development of security-enabled client and server applications.
A flaw was found in the way NSS verified certain ECDSA (Elliptic Curve Digital Signature Algorithm) signatures. Under certain conditions, an attacker could use this flaw to conduct signature forgery attacks. (CVE-2015-2730)
Red Hat would like to thank the Mozilla project for reporting this issue. Upstream acknowledges Watson Ladd as the original reporter of this issue.
All nss-softokn users are advised to upgrade to these updated packages, which contain a backported patch to correct this issue.

Topics%20covered

Topics Covered

security advisory Red Hat moderate impact signature forgery nss-softokn

References

https://access.redhat.com/security/cve/CVE-2015-2730 https://access.redhat.com/security/updates/classification/#moderate https://www.mozilla.org/en-US/security/advisories/mfsa2015-64/

Package List

Red Hat Enterprise Linux Desktop (v. 6):
Source: nss-softokn-3.14.3-23.el6_7.src.rpm
i386: nss-softokn-3.14.3-23.el6_7.i686.rpm nss-softokn-debuginfo-3.14.3-23.el6_7.i686.rpm nss-softokn-freebl-3.14.3-23.el6_7.i686.rpm
x86_64: nss-softokn-3.14.3-23.el6_7.i686.rpm nss-softokn-3.14.3-23.el6_7.x86_64.rpm nss-softokn-debuginfo-3.14.3-23.el6_7.i686.rpm nss-softokn-debuginfo-3.14.3-23.el6_7.x86_64.rpm nss-softokn-freebl-3.14.3-23.el6_7.i686.rpm nss-softokn-freebl-3.14.3-23.el6_7.x86_64.rpm
Red Hat Enterprise Linux Desktop Optional (v. 6):
i386: nss-softokn-debuginfo-3.14.3-23.el6_7.i686.rpm nss-softokn-devel-3.14.3-23.el6_7.i686.rpm nss-softokn-freebl-devel-3.14.3-23.el6_7.i686.rpm
x86_64: nss-softokn-debuginfo-3.14.3-23.el6_7.i686.rpm nss-softokn-debuginfo-3.14.3-23.el6_7.x86_64.rpm nss-softokn-devel-3.14.3-23.el6_7.i686.rpm nss-softokn-devel-3.14.3-23.el6_7.x86_64.rpm nss-softokn-freebl-devel-3.14.3-23.el6_7.i686.rpm nss-softokn-freebl-devel-3.14.3-23.el6_7.x86_64.rpm
Red Hat Enterprise Linux HPC Node (v. 6):
Source: nss-softokn-3.14.3-23.el6_7.src.rpm
x86_64: nss-softokn-3.14.3-23.el6_7.i686.rpm nss-softokn-3.14.3-23.el6_7.x86_64.rpm nss-softokn-debuginfo-3.14.3-23.el6_7.i686.rpm nss-softokn-debuginfo-3.14.3-23.el6_7.x86_64.rpm nss-softokn-freebl-3.14.3-23.el6_7.i686.rpm

Read the Full Advisory


Advisory ID: RHSA-2015:1699-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2015:1699.html
Issue date: 2015-09-01

Topic

Updated nss-softokn packages that fix one security issue are now availablefor Red Hat Enterprise Linux 6 and 7.Red Hat Product Security has rated this update as having Moderate securityimpact. A Common Vulnerability Scoring System (CVSS) base score, whichgives a detailed severity rating, is available from the CVE link in theReferences section.

Topics%20covered

Topics Covered

security advisory Red Hat moderate impact signature forgery nss-softokn

Relevant Releases Architectures

Red Hat Enterprise Linux Client (v. 7) - x86_64

Red Hat Enterprise Linux Client Optional (v. 7) - x86_64

Red Hat Enterprise Linux ComputeNode (v. 7) - x86_64

Red Hat Enterprise Linux ComputeNode Optional (v. 7) - x86_64

Red Hat Enterprise Linux Desktop (v. 6) - i386, x86_64

Red Hat Enterprise Linux Desktop Optional (v. 6) - i386, x86_64

Red Hat Enterprise Linux HPC Node (v. 6) - x86_64

Red Hat Enterprise Linux HPC Node Optional (v. 6) - x86_64

Red Hat Enterprise Linux Server (v. 6) - i386, ppc64, s390x, x86_64

Red Hat Enterprise Linux Server (v. 7) - ppc64, ppc64le, s390x, x86_64

Red Hat Enterprise Linux Workstation (v. 6) - i386, x86_64

Red Hat Enterprise Linux Workstation (v. 7) - x86_64

Bugs Fixed

1236954 - CVE-2015-2730 NSS: ECDSA signature validation fails to handle some signatures correctly (MFSA 2015-64)

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