Synopsis

Critical: nss security update

Type/Severity

Security Advisory: Critical

Topic

An update for nss is now available for Red Hat Enterprise Linux 5 Extended
Lifecycle Support.

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.

Description

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.

Solution

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.

Affected Products

• Red Hat Enterprise Linux Server - Extended Life Cycle Support 5 x86_64
• Red Hat Enterprise Linux Server - Extended Life Cycle Support 5 i386
• Red Hat Enterprise Linux Server - Extended Life Cycle Support (for IBM z Systems) 5 s390x

Fixes

• 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)

CVEs

• CVE-2017-5461

References

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

Red Hat Enterprise Linux Server - Extended Life Cycle Support 5

SRPM
nss-3.21.4-1.el5_11.src.rpm	SHA-256: fbd57512fcf990d43865f00da5a7e1b75707a28522b460b1b12b927df01a08bb
x86_64
nss-3.21.4-1.el5_11.i386.rpm	SHA-256: 3d05b949911180210be4a6438b09fef5c771c0c1fc977e31c1ef2d0954688fa9
nss-3.21.4-1.el5_11.x86_64.rpm	SHA-256: 473ee87ad641344590ce4589e9dde0d82a0f8fbe7a63d6ffeaba6d9dc17b1458
nss-debuginfo-3.21.4-1.el5_11.i386.rpm	SHA-256: 75467314ea97f9f8e01974e6ef898fae5a2f7b7b9d8a0a67cf114fe63dbb2446
nss-debuginfo-3.21.4-1.el5_11.x86_64.rpm	SHA-256: 71fe06dbc9c3d6851a90ca3592300191b93557f4a4478c84762fce40dfee9b42
nss-devel-3.21.4-1.el5_11.i386.rpm	SHA-256: 92dbcb5e40eb6151b773c0da571dfb57071456bca52f1414ba7976db5256f24f
nss-devel-3.21.4-1.el5_11.x86_64.rpm	SHA-256: 1b7879423526eca49a019fa0f7ba509a2fc297ea1568f136dfb5377441752590
nss-pkcs11-devel-3.21.4-1.el5_11.i386.rpm	SHA-256: 3f251add7c1e3732bb5716dd1ed565cf0d5153a3d8170ee15b6cd65d476c4378
nss-pkcs11-devel-3.21.4-1.el5_11.x86_64.rpm	SHA-256: f5cda31dfe20f1dcdf14ad85dc7d9544330da7cae14e45d78237a93da24b28c0
nss-tools-3.21.4-1.el5_11.x86_64.rpm	SHA-256: 4ee8354313520450c59679ae476f10fb0ecd514aba7840050eedcead9f174165
i386
nss-3.21.4-1.el5_11.i386.rpm	SHA-256: 3d05b949911180210be4a6438b09fef5c771c0c1fc977e31c1ef2d0954688fa9
nss-debuginfo-3.21.4-1.el5_11.i386.rpm	SHA-256: 75467314ea97f9f8e01974e6ef898fae5a2f7b7b9d8a0a67cf114fe63dbb2446
nss-devel-3.21.4-1.el5_11.i386.rpm	SHA-256: 92dbcb5e40eb6151b773c0da571dfb57071456bca52f1414ba7976db5256f24f
nss-pkcs11-devel-3.21.4-1.el5_11.i386.rpm	SHA-256: 3f251add7c1e3732bb5716dd1ed565cf0d5153a3d8170ee15b6cd65d476c4378
nss-tools-3.21.4-1.el5_11.i386.rpm	SHA-256: 342ff540987f122f1921d7ade4d862098db9f9cef51008081946a4bf1de5be37

Red Hat Enterprise Linux Server - Extended Life Cycle Support (for IBM z Systems) 5

SRPM
nss-3.21.4-1.el5_11.src.rpm	SHA-256: fbd57512fcf990d43865f00da5a7e1b75707a28522b460b1b12b927df01a08bb
s390x
nss-3.21.4-1.el5_11.s390.rpm	SHA-256: 2275d412fecd4051712473adf64c4a2f585b23583d08acc65cdf5ffcc84d6b66
nss-3.21.4-1.el5_11.s390x.rpm	SHA-256: fae8b39625314f05e4bc2a3e84a4f81bf22af71e730ba9b3585e28143165643b
nss-debuginfo-3.21.4-1.el5_11.s390.rpm	SHA-256: eaf92cd1aabdc9217ef0085162ba4f3df89a156edc1d4f8433a37f4b809b1075
nss-debuginfo-3.21.4-1.el5_11.s390x.rpm	SHA-256: bd507c8828c01286f1b25d8c7a0a0c6bbe0008a0d7b763c1a76277ccb9e92c0a
nss-devel-3.21.4-1.el5_11.s390.rpm	SHA-256: 2cdc47c1d35a5e49d1b702d3f56b737214981876024abdd43241cf1d646d6b80
nss-devel-3.21.4-1.el5_11.s390x.rpm	SHA-256: 16ff29aa053d5d42d3b9853982d20f4b59f47de8d381fd5f22bb687d00ff5945
nss-pkcs11-devel-3.21.4-1.el5_11.s390.rpm	SHA-256: 085c1fe6f5977256503f00edc88874c7f5b561805b0690bc7ac62165ee841c5b
nss-pkcs11-devel-3.21.4-1.el5_11.s390x.rpm	SHA-256: 784c8fe9c572cc596cb36f36e3d2c44e4542873435c102d586513e0a8e458046
nss-tools-3.21.4-1.el5_11.s390x.rpm	SHA-256: 4adc44b518ac7b9e127914ebdf81ddf68a693224dc3ac2a9dec309b935913074