概要

Critical: nss security update

タイプ/重大度

Security Advisory: Critical

トピック

An update for nss is now available for Red Hat Enterprise Linux 5.9 Long Life.

Red Hat Product Security has rated this update as having a security impact of
Critical. A Common Vulnerability Scoring System (CVSS) base score, which gives a
detailed severity rating, is available for each vulnerability from the CVE
link(s) in the References section.

説明

Network Security Services (NSS) is a set of libraries designed to support the
cross-platform development of security-enabled client and server applications.

Security Fix(es):

• An out-of-bounds write flaw was found in the way NSS performed certain
  Base64-decoding operations. An attacker could use this flaw to create a
  specially crafted certificate which, when parsed by NSS, could cause it to crash
  or execute arbitrary code, using the permissions of the user running an
  application compiled against the NSS library. (CVE-2017-5461)
  

Red Hat would like to thank the Mozilla project for reporting this issue.
Upstream acknowledges Ronald Crane as the original reporter.

解決法

For details on how to apply this update, which includes the changes described in
this advisory, refer to:

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

After installing this update, applications using NSS (for example, Firefox) must
be restarted for this update to take effect.

影響を受ける製品

• Red Hat Enterprise Linux Server - AUS 5.9 x86_64
• Red Hat Enterprise Linux Server - AUS 5.9 ia64
• Red Hat Enterprise Linux Server - AUS 5.9 i386

修正

• BZ - 1440080 - CVE-2017-5461 nss: Write beyond bounds caused by bugs in Base64 de/encoding in nssb64d.c and nssb64e.c (MFSA 2017-10)

CVE

• CVE-2017-5461

参考資料

• https://access.redhat.com/security/updates/classification/#critical

Red Hat Enterprise Linux Server - AUS 5.9

SRPM
x86_64
nss-3.14.3-11.el5_9.i386.rpm	SHA-256: bcf8caecf6c3ee0969c83df38bdace85f8b10b5a2f30ccc05a41871527872659
nss-devel-3.14.3-11.el5_9.i386.rpm	SHA-256: 94f6efb2edd3c6fea3c11f6bf6866b3c5c390fce3ae941f3a80150df22a60df6
nss-pkcs11-devel-3.14.3-11.el5_9.i386.rpm	SHA-256: f8fadeb27b769417c64f5b39b009c35699bb174e99ef7173f757c3038f61318c
ia64
nss-3.14.3-11.el5_9.i386.rpm	SHA-256: bcf8caecf6c3ee0969c83df38bdace85f8b10b5a2f30ccc05a41871527872659
i386
nss-3.14.3-11.el5_9.i386.rpm	SHA-256: bcf8caecf6c3ee0969c83df38bdace85f8b10b5a2f30ccc05a41871527872659
nss-devel-3.14.3-11.el5_9.i386.rpm	SHA-256: 94f6efb2edd3c6fea3c11f6bf6866b3c5c390fce3ae941f3a80150df22a60df6
nss-pkcs11-devel-3.14.3-11.el5_9.i386.rpm	SHA-256: f8fadeb27b769417c64f5b39b009c35699bb174e99ef7173f757c3038f61318c
nss-tools-3.14.3-11.el5_9.i386.rpm	SHA-256: 200d0b35a7f442e327effef2daec344a0bada452a0c6d1ea516146ca8b241d99