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Red Hat Product Errata RHSA-2021:4153 - Security Advisory
Issued:
2021-11-09
Updated:
2021-11-09

RHSA-2021:4153 - Security Advisory

  • Overview
  • Updated Packages

Synopsis

Moderate: dnsmasq security and bug fix update

Type/Severity

Security Advisory: Moderate

Red Hat Insights patch analysis

Identify and remediate systems affected by this advisory.

View affected systems

Topic

An update for dnsmasq is now available for Red Hat Enterprise Linux 8.

Red Hat Product Security has rated this update as having a security impact of Moderate. 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

The dnsmasq packages contain Dnsmasq, a lightweight DNS (Domain Name Server) forwarder and DHCP (Dynamic Host Configuration Protocol) server.

Security Fix(es):

  • dnsmasq: fixed outgoing port used when --server is used with an interface name (CVE-2021-3448)

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.

Additional Changes:

For detailed information on changes in this release, see the Red Hat Enterprise Linux 8.5 Release Notes linked from 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

Affected Products

  • Red Hat Enterprise Linux for x86_64 8 x86_64
  • Red Hat Enterprise Linux for x86_64 - Extended Update Support 8.6 x86_64
  • Red Hat Enterprise Linux Server - AUS 8.6 x86_64
  • Red Hat Enterprise Linux for IBM z Systems 8 s390x
  • Red Hat Enterprise Linux for IBM z Systems - Extended Update Support 8.6 s390x
  • Red Hat Enterprise Linux for Power, little endian 8 ppc64le
  • Red Hat Enterprise Linux for Power, little endian - Extended Update Support 8.6 ppc64le
  • Red Hat Enterprise Linux Server - TUS 8.6 x86_64
  • Red Hat Enterprise Linux for ARM 64 8 aarch64
  • Red Hat Enterprise Linux for ARM 64 - Extended Update Support 8.6 aarch64
  • Red Hat Enterprise Linux Server for Power LE - Update Services for SAP Solutions 8.6 ppc64le
  • Red Hat Enterprise Linux for x86_64 - Update Services for SAP Solutions 8.6 x86_64

Fixes

  • BZ - 1921153 - failed to send packet: Network is unreachable when resolution is busy.
  • BZ - 1927973 - dnsmasq --bind-dynamic stops replying to upstream queries
  • BZ - 1939368 - CVE-2021-3448 dnsmasq: fixed outgoing port used when --server is used with an interface name
  • BZ - 1947039 - typo in dnsmasq man page

CVEs

  • CVE-2021-3448

References

  • https://access.redhat.com/security/updates/classification/#moderate
  • https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/8/html/8.5_release_notes/
Note: More recent versions of these packages may be available. Click a package name for more details.

Red Hat Enterprise Linux for x86_64 8

SRPM
dnsmasq-2.79-19.el8.src.rpm SHA-256: a8faa6a9708a5af2633360b2181ee85d66aee0a45223bd2366c61823c0c8e5cb
x86_64
dnsmasq-2.79-19.el8.x86_64.rpm SHA-256: 85f6b6a7dc29dbb801ea8a1359895719a37f4bb3753db50464fc508022f92777
dnsmasq-debuginfo-2.79-19.el8.x86_64.rpm SHA-256: b3a25e5c8a2ce4637a6d86213bac4037a3b1dcd83c87c41e1c25db4a9226a4d1
dnsmasq-debugsource-2.79-19.el8.x86_64.rpm SHA-256: 1359f514ccf6e696f033797cddd7458067f7c894ea61fb277a96619faeffdf81
dnsmasq-utils-2.79-19.el8.x86_64.rpm SHA-256: f23e4135742796c57a167aeec5e320ab9b42e5331811770af3ce2c2ac99add06
dnsmasq-utils-debuginfo-2.79-19.el8.x86_64.rpm SHA-256: 5a173e280be1ffb6764e9aba9d44d6661b534666be1a17850d7da378d8cfe0f8

Red Hat Enterprise Linux for x86_64 - Extended Update Support 8.6

SRPM
dnsmasq-2.79-19.el8.src.rpm SHA-256: a8faa6a9708a5af2633360b2181ee85d66aee0a45223bd2366c61823c0c8e5cb
x86_64
dnsmasq-2.79-19.el8.x86_64.rpm SHA-256: 85f6b6a7dc29dbb801ea8a1359895719a37f4bb3753db50464fc508022f92777
dnsmasq-debuginfo-2.79-19.el8.x86_64.rpm SHA-256: b3a25e5c8a2ce4637a6d86213bac4037a3b1dcd83c87c41e1c25db4a9226a4d1
dnsmasq-debugsource-2.79-19.el8.x86_64.rpm SHA-256: 1359f514ccf6e696f033797cddd7458067f7c894ea61fb277a96619faeffdf81
dnsmasq-utils-2.79-19.el8.x86_64.rpm SHA-256: f23e4135742796c57a167aeec5e320ab9b42e5331811770af3ce2c2ac99add06
dnsmasq-utils-debuginfo-2.79-19.el8.x86_64.rpm SHA-256: 5a173e280be1ffb6764e9aba9d44d6661b534666be1a17850d7da378d8cfe0f8

Red Hat Enterprise Linux Server - AUS 8.6

SRPM
dnsmasq-2.79-19.el8.src.rpm SHA-256: a8faa6a9708a5af2633360b2181ee85d66aee0a45223bd2366c61823c0c8e5cb
x86_64
dnsmasq-2.79-19.el8.x86_64.rpm SHA-256: 85f6b6a7dc29dbb801ea8a1359895719a37f4bb3753db50464fc508022f92777
dnsmasq-debuginfo-2.79-19.el8.x86_64.rpm SHA-256: b3a25e5c8a2ce4637a6d86213bac4037a3b1dcd83c87c41e1c25db4a9226a4d1
dnsmasq-debugsource-2.79-19.el8.x86_64.rpm SHA-256: 1359f514ccf6e696f033797cddd7458067f7c894ea61fb277a96619faeffdf81
dnsmasq-utils-2.79-19.el8.x86_64.rpm SHA-256: f23e4135742796c57a167aeec5e320ab9b42e5331811770af3ce2c2ac99add06
dnsmasq-utils-debuginfo-2.79-19.el8.x86_64.rpm SHA-256: 5a173e280be1ffb6764e9aba9d44d6661b534666be1a17850d7da378d8cfe0f8

Red Hat Enterprise Linux for IBM z Systems 8

SRPM
dnsmasq-2.79-19.el8.src.rpm SHA-256: a8faa6a9708a5af2633360b2181ee85d66aee0a45223bd2366c61823c0c8e5cb
s390x
dnsmasq-2.79-19.el8.s390x.rpm SHA-256: 6f19ba74a1da779a0240c07709d5f7a7225f023af21061ccb969863b854c8bc8
dnsmasq-debuginfo-2.79-19.el8.s390x.rpm SHA-256: 9675058fa9357b4c98fd07aea862ffca66abf7ee91e933e948a9d896ce418ba8
dnsmasq-debugsource-2.79-19.el8.s390x.rpm SHA-256: e31b01676b1e817b3bae9c73c3bbbd4c49a0f69b004c16c2f7da4ea8db6810f4
dnsmasq-utils-2.79-19.el8.s390x.rpm SHA-256: 26f37a8e9c28edc6cb193e0f51790a46dc2f1547f60c646583d8a7de2f2ec832
dnsmasq-utils-debuginfo-2.79-19.el8.s390x.rpm SHA-256: 59190e9281736c45d92c7e42256bd41f087206b46b820744d4fab76df4be8798

Red Hat Enterprise Linux for IBM z Systems - Extended Update Support 8.6

SRPM
dnsmasq-2.79-19.el8.src.rpm SHA-256: a8faa6a9708a5af2633360b2181ee85d66aee0a45223bd2366c61823c0c8e5cb
s390x
dnsmasq-2.79-19.el8.s390x.rpm SHA-256: 6f19ba74a1da779a0240c07709d5f7a7225f023af21061ccb969863b854c8bc8
dnsmasq-debuginfo-2.79-19.el8.s390x.rpm SHA-256: 9675058fa9357b4c98fd07aea862ffca66abf7ee91e933e948a9d896ce418ba8
dnsmasq-debugsource-2.79-19.el8.s390x.rpm SHA-256: e31b01676b1e817b3bae9c73c3bbbd4c49a0f69b004c16c2f7da4ea8db6810f4
dnsmasq-utils-2.79-19.el8.s390x.rpm SHA-256: 26f37a8e9c28edc6cb193e0f51790a46dc2f1547f60c646583d8a7de2f2ec832
dnsmasq-utils-debuginfo-2.79-19.el8.s390x.rpm SHA-256: 59190e9281736c45d92c7e42256bd41f087206b46b820744d4fab76df4be8798

Red Hat Enterprise Linux for Power, little endian 8

SRPM
dnsmasq-2.79-19.el8.src.rpm SHA-256: a8faa6a9708a5af2633360b2181ee85d66aee0a45223bd2366c61823c0c8e5cb
ppc64le
dnsmasq-2.79-19.el8.ppc64le.rpm SHA-256: 7e23f845e2231e3b449d73527c138352ed6e7fc938bac54f8418780ef16d5893
dnsmasq-debuginfo-2.79-19.el8.ppc64le.rpm SHA-256: 5238c5f20844bbbbc57f0d6db50a070dc7d9b7945e01ce1e95cf838790501071
dnsmasq-debugsource-2.79-19.el8.ppc64le.rpm SHA-256: 6b7aa25b7bcbdc3af6640dd1fb6706c3eda0795314b0a62e4a48618beae15d6e
dnsmasq-utils-2.79-19.el8.ppc64le.rpm SHA-256: 2df02498c41f12bb691c2087650bb6ba414bdbed77d4dd9a4e73a5be951d0b52
dnsmasq-utils-debuginfo-2.79-19.el8.ppc64le.rpm SHA-256: 24b9b41c78ffd457d24f5056b78b4b34195fc740f1d4b109d6a77a50180a6042

Red Hat Enterprise Linux for Power, little endian - Extended Update Support 8.6

SRPM
dnsmasq-2.79-19.el8.src.rpm SHA-256: a8faa6a9708a5af2633360b2181ee85d66aee0a45223bd2366c61823c0c8e5cb
ppc64le
dnsmasq-2.79-19.el8.ppc64le.rpm SHA-256: 7e23f845e2231e3b449d73527c138352ed6e7fc938bac54f8418780ef16d5893
dnsmasq-debuginfo-2.79-19.el8.ppc64le.rpm SHA-256: 5238c5f20844bbbbc57f0d6db50a070dc7d9b7945e01ce1e95cf838790501071
dnsmasq-debugsource-2.79-19.el8.ppc64le.rpm SHA-256: 6b7aa25b7bcbdc3af6640dd1fb6706c3eda0795314b0a62e4a48618beae15d6e
dnsmasq-utils-2.79-19.el8.ppc64le.rpm SHA-256: 2df02498c41f12bb691c2087650bb6ba414bdbed77d4dd9a4e73a5be951d0b52
dnsmasq-utils-debuginfo-2.79-19.el8.ppc64le.rpm SHA-256: 24b9b41c78ffd457d24f5056b78b4b34195fc740f1d4b109d6a77a50180a6042

Red Hat Enterprise Linux Server - TUS 8.6

SRPM
dnsmasq-2.79-19.el8.src.rpm SHA-256: a8faa6a9708a5af2633360b2181ee85d66aee0a45223bd2366c61823c0c8e5cb
x86_64
dnsmasq-2.79-19.el8.x86_64.rpm SHA-256: 85f6b6a7dc29dbb801ea8a1359895719a37f4bb3753db50464fc508022f92777
dnsmasq-debuginfo-2.79-19.el8.x86_64.rpm SHA-256: b3a25e5c8a2ce4637a6d86213bac4037a3b1dcd83c87c41e1c25db4a9226a4d1
dnsmasq-debugsource-2.79-19.el8.x86_64.rpm SHA-256: 1359f514ccf6e696f033797cddd7458067f7c894ea61fb277a96619faeffdf81
dnsmasq-utils-2.79-19.el8.x86_64.rpm SHA-256: f23e4135742796c57a167aeec5e320ab9b42e5331811770af3ce2c2ac99add06
dnsmasq-utils-debuginfo-2.79-19.el8.x86_64.rpm SHA-256: 5a173e280be1ffb6764e9aba9d44d6661b534666be1a17850d7da378d8cfe0f8

Red Hat Enterprise Linux for ARM 64 8

SRPM
dnsmasq-2.79-19.el8.src.rpm SHA-256: a8faa6a9708a5af2633360b2181ee85d66aee0a45223bd2366c61823c0c8e5cb
aarch64
dnsmasq-2.79-19.el8.aarch64.rpm SHA-256: 92dbadc8d47fbf8988360321d86a91b2d1017773e709ef0cdd77204d91ae7f54
dnsmasq-debuginfo-2.79-19.el8.aarch64.rpm SHA-256: e8039b6a945928a326e5ef2d2c98aff4d68c8ceeadedd851142eeb0bee224c6d
dnsmasq-debugsource-2.79-19.el8.aarch64.rpm SHA-256: ffbc9d9bdbada6ddd3dd422643599ecf8171dd2910466e55ec9f8cc30ac1fc15
dnsmasq-utils-2.79-19.el8.aarch64.rpm SHA-256: 5a9f01f7e9bfe24e79bc0ce3fb3465e6063ea65e969d04c9d3a80fd767ae25a1
dnsmasq-utils-debuginfo-2.79-19.el8.aarch64.rpm SHA-256: 3b2d2870546cfb357998dbbc70fce7953d481b4519cce926549f1784c96a69ef

Red Hat Enterprise Linux for ARM 64 - Extended Update Support 8.6

SRPM
dnsmasq-2.79-19.el8.src.rpm SHA-256: a8faa6a9708a5af2633360b2181ee85d66aee0a45223bd2366c61823c0c8e5cb
aarch64
dnsmasq-2.79-19.el8.aarch64.rpm SHA-256: 92dbadc8d47fbf8988360321d86a91b2d1017773e709ef0cdd77204d91ae7f54
dnsmasq-debuginfo-2.79-19.el8.aarch64.rpm SHA-256: e8039b6a945928a326e5ef2d2c98aff4d68c8ceeadedd851142eeb0bee224c6d
dnsmasq-debugsource-2.79-19.el8.aarch64.rpm SHA-256: ffbc9d9bdbada6ddd3dd422643599ecf8171dd2910466e55ec9f8cc30ac1fc15
dnsmasq-utils-2.79-19.el8.aarch64.rpm SHA-256: 5a9f01f7e9bfe24e79bc0ce3fb3465e6063ea65e969d04c9d3a80fd767ae25a1
dnsmasq-utils-debuginfo-2.79-19.el8.aarch64.rpm SHA-256: 3b2d2870546cfb357998dbbc70fce7953d481b4519cce926549f1784c96a69ef

Red Hat Enterprise Linux Server for Power LE - Update Services for SAP Solutions 8.6

SRPM
dnsmasq-2.79-19.el8.src.rpm SHA-256: a8faa6a9708a5af2633360b2181ee85d66aee0a45223bd2366c61823c0c8e5cb
ppc64le
dnsmasq-2.79-19.el8.ppc64le.rpm SHA-256: 7e23f845e2231e3b449d73527c138352ed6e7fc938bac54f8418780ef16d5893
dnsmasq-debuginfo-2.79-19.el8.ppc64le.rpm SHA-256: 5238c5f20844bbbbc57f0d6db50a070dc7d9b7945e01ce1e95cf838790501071
dnsmasq-debugsource-2.79-19.el8.ppc64le.rpm SHA-256: 6b7aa25b7bcbdc3af6640dd1fb6706c3eda0795314b0a62e4a48618beae15d6e
dnsmasq-utils-2.79-19.el8.ppc64le.rpm SHA-256: 2df02498c41f12bb691c2087650bb6ba414bdbed77d4dd9a4e73a5be951d0b52
dnsmasq-utils-debuginfo-2.79-19.el8.ppc64le.rpm SHA-256: 24b9b41c78ffd457d24f5056b78b4b34195fc740f1d4b109d6a77a50180a6042

Red Hat Enterprise Linux for x86_64 - Update Services for SAP Solutions 8.6

SRPM
dnsmasq-2.79-19.el8.src.rpm SHA-256: a8faa6a9708a5af2633360b2181ee85d66aee0a45223bd2366c61823c0c8e5cb
x86_64
dnsmasq-2.79-19.el8.x86_64.rpm SHA-256: 85f6b6a7dc29dbb801ea8a1359895719a37f4bb3753db50464fc508022f92777
dnsmasq-debuginfo-2.79-19.el8.x86_64.rpm SHA-256: b3a25e5c8a2ce4637a6d86213bac4037a3b1dcd83c87c41e1c25db4a9226a4d1
dnsmasq-debugsource-2.79-19.el8.x86_64.rpm SHA-256: 1359f514ccf6e696f033797cddd7458067f7c894ea61fb277a96619faeffdf81
dnsmasq-utils-2.79-19.el8.x86_64.rpm SHA-256: f23e4135742796c57a167aeec5e320ab9b42e5331811770af3ce2c2ac99add06
dnsmasq-utils-debuginfo-2.79-19.el8.x86_64.rpm SHA-256: 5a173e280be1ffb6764e9aba9d44d6661b534666be1a17850d7da378d8cfe0f8

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

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