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Red Hat Product Errata RHSA-2021:4994 - Security Advisory
Issued:
2021-12-07
Updated:
2021-12-07

RHSA-2021:4994 - Security Advisory

  • Overview
  • Updated Packages

Synopsis

Critical: nss security update

Type/Severity

Security Advisory: Critical

Red Hat Insights patch analysis

Identify and remediate systems affected by this advisory.

View affected systems

Topic

An update for nss is now available for Red Hat Enterprise Linux 7.3 Advanced Update 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):

  • nss: Memory corruption in decodeECorDsaSignature with DSA signatures (and RSA-PSS) (CVE-2021-43527)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

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 - AUS 7.3 x86_64

Fixes

  • BZ - 2024370 - CVE-2021-43527 nss: Memory corruption in decodeECorDsaSignature with DSA signatures (and RSA-PSS)

CVEs

  • CVE-2021-43527

References

  • https://access.redhat.com/security/updates/classification/#critical
  • https://access.redhat.com/security/vulnerabilities/RHSB-2021-008
Note: More recent versions of these packages may be available. Click a package name for more details.

Red Hat Enterprise Linux Server - AUS 7.3

SRPM
nss-3.28.4-2.el7_3.src.rpm SHA-256: f874e7717a5e419d5a0535d5a364b817e5b31d2e036bd4a080ae5e5330779cb0
x86_64
nss-3.28.4-2.el7_3.i686.rpm SHA-256: c78057e663670f21080382d2abc0618a67aa3b1e1b6923e8725ef8b736bd0631
nss-3.28.4-2.el7_3.x86_64.rpm SHA-256: c583094830dc22240a4fc392c823cf061c8cda210ce1454517fe6d9e7e0418e1
nss-debuginfo-3.28.4-2.el7_3.i686.rpm SHA-256: 37a78458e516d0f1d3e99604ed5ffa7131c497446496ff8a9ccfd3d5015802f4
nss-debuginfo-3.28.4-2.el7_3.i686.rpm SHA-256: 37a78458e516d0f1d3e99604ed5ffa7131c497446496ff8a9ccfd3d5015802f4
nss-debuginfo-3.28.4-2.el7_3.x86_64.rpm SHA-256: 46fd18ba2e9909a8cb38c82d9ee58ff549b00875b45a406001eadfe0be47a27b
nss-debuginfo-3.28.4-2.el7_3.x86_64.rpm SHA-256: 46fd18ba2e9909a8cb38c82d9ee58ff549b00875b45a406001eadfe0be47a27b
nss-devel-3.28.4-2.el7_3.i686.rpm SHA-256: 1c8a1f4b93d0904892c5ab1075b2fc2d98948c200f13ecca272036092634130c
nss-devel-3.28.4-2.el7_3.x86_64.rpm SHA-256: 56c9b206bac4a6d5ec9653fae97d842eb92ed929f01fecdfe8b1721901126dea
nss-pkcs11-devel-3.28.4-2.el7_3.i686.rpm SHA-256: fe0df2f6d383a41ea969fcb0bbf2e85ebf3c0aed6751e6f50c2850166d626458
nss-pkcs11-devel-3.28.4-2.el7_3.x86_64.rpm SHA-256: 05b1592e61ba5cd3999a9a633eac426421fd6a9b43422a93cd5bf455b2ca4085
nss-sysinit-3.28.4-2.el7_3.x86_64.rpm SHA-256: 9a3c31b2729622e8ae567e368681633f272fbbadee775430cbab52e55bb7fb15
nss-tools-3.28.4-2.el7_3.x86_64.rpm SHA-256: cb5f725d66bc8c5515c441d068d2b3d3d24bc644301cd006cf5996374cf5966c

The Red Hat security contact is secalert@redhat.com. More contact details at https://access.redhat.com/security/team/contact/.

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