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Red Hat: RHSA-2021:0691-01 Critical: Bind Buffer Overflow Advisory

red hat
Calendar Grey March 2, 2021
Dist Redhat Esm H88
Critical security patch for Red Hat Enterprise Linux addresses a memory leak vulnerability affecting DHCP operations.
An update for bind is now available for Red Hat Enterprise Linux 7.6 Extended Update Support

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 the update, the BIND daemon (named) will be restarted automatically.

Summary

The Berkeley Internet Name Domain (BIND) is an implementation of the Domain Name System (DNS) protocols. BIND includes a DNS server (named); a resolver library (routines for applications to use when interfacing with DNS); and tools for verifying that the DNS server is operating correctly.
Security Fix(es):
* bind: Buffer overflow in the SPNEGO implementation affecting GSSAPI security policy negotiation (CVE-2020-8625)
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.

Topics%20covered

Topics Covered

security advisory Red Hat buffer overflow critical bind threat GSSAPI bind update DNS security

References

https://access.redhat.com/security/cve/CVE-2020-8625 https://access.redhat.com/security/updates/classification/#important

Package List

Red Hat Enterprise Linux ComputeNode EUS (v. 7.6):
Source: bind-9.9.4-74.el7_6.6.src.rpm
noarch: bind-license-9.9.4-74.el7_6.6.noarch.rpm
x86_64: bind-debuginfo-9.9.4-74.el7_6.6.i686.rpm bind-debuginfo-9.9.4-74.el7_6.6.x86_64.rpm bind-libs-9.9.4-74.el7_6.6.i686.rpm bind-libs-9.9.4-74.el7_6.6.x86_64.rpm bind-libs-lite-9.9.4-74.el7_6.6.i686.rpm bind-libs-lite-9.9.4-74.el7_6.6.x86_64.rpm bind-utils-9.9.4-74.el7_6.6.x86_64.rpm
Red Hat Enterprise Linux ComputeNode Optional EUS (v. 7.6):
x86_64: bind-9.9.4-74.el7_6.6.x86_64.rpm bind-chroot-9.9.4-74.el7_6.6.x86_64.rpm bind-debuginfo-9.9.4-74.el7_6.6.i686.rpm bind-debuginfo-9.9.4-74.el7_6.6.x86_64.rpm bind-devel-9.9.4-74.el7_6.6.i686.rpm bind-devel-9.9.4-74.el7_6.6.x86_64.rpm bind-lite-devel-9.9.4-74.el7_6.6.i686.rpm bind-lite-devel-9.9.4-74.el7_6.6.x86_64.rpm bind-pkcs11-9.9.4-74.el7_6.6.x86_64.rpm bind-pkcs11-devel-9.9.4-74.el7_6.6.i686.rpm bind-pkcs11-devel-9.9.4-74.el7_6.6.x86_64.rpm bind-pkcs11-libs-9.9.4-74.el7_6.6.i686.rpm bind-pkcs11-libs-9.9.4-74.el7_6.6.x86_64.rpm bind-pkcs11-utils-9.9.4-74.el7_6.6.x86_64.rpm bind-sdb-9.9.4-74.el7_6.6.x86_64.rpm bind-sdb-chroot-9.9.4-74.el7_6.6.x86_64.rpm
Red Hat Enterprise Linux Server EUS (v. 7.6):
Source: bind-9.9.4-74.el7_6.6.src.rpm
noarch: bind-license-9.9.4-74.el7_6.6.noarch.rpm


Read the Full Advisory


Severity
important
Lowest
Low
Medium
High
Critical

Advisory ID: RHSA-2021:0691-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2021:0691
Issue date: 2021-03-02

Topic

An update for bind is now available for Red Hat Enterprise Linux 7.6Extended Update Support.Red Hat Product Security has rated this update as having a security impactof Important. A Common Vulnerability Scoring System (CVSS) base score,which gives a detailed severity rating, is available for each vulnerabilityfrom the CVE link(s) in the References section.

Topics%20covered

Topics Covered

security advisory Red Hat buffer overflow critical bind threat GSSAPI bind update DNS security

Relevant Releases Architectures

Red Hat Enterprise Linux ComputeNode EUS (v. 7.6) - noarch, x86_64

Red Hat Enterprise Linux ComputeNode Optional EUS (v. 7.6) - x86_64

Red Hat Enterprise Linux Server EUS (v. 7.6) - noarch, ppc64, ppc64le, s390x, x86_64

Red Hat Enterprise Linux Server Optional EUS (v. 7.6) - ppc64, ppc64le, s390x, x86_64

Red Hat Enterprise Linux for ARM and IBM Power LE (POWER9) Server (v. 7) - aarch64, noarch, ppc64le, s390x

Red Hat Enterprise Linux for ARM and IBM Power LE (POWER9) Server Optional (v. 7) - aarch64, ppc64le, s390x

Bugs Fixed

1928486 - CVE-2020-8625 bind: Buffer overflow in the SPNEGO implementation affecting GSSAPI security policy negotiation

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