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Red Hat Product Errata RHSA-2022:7633 - Security Advisory
Issued:
2022-11-08
Updated:
2022-11-08

RHSA-2022:7633 - 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: Heap use after free in dhcp6_no_relay (CVE-2022-0934)

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 8.7 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 IBM z Systems 8 s390x
  • Red Hat Enterprise Linux for Power, little endian 8 ppc64le
  • Red Hat Enterprise Linux for ARM 64 8 aarch64

Fixes

  • BZ - 2049691 - Malformed DHCPv6 NTP option
  • BZ - 2057075 - CVE-2022-0934 dnsmasq: Heap use after free in dhcp6_no_relay
  • BZ - 2120357 - dnsmasq high CPU usage in 4.11 spoke deployment or after 4.10.21 to 4.11.0-rc.1 upgrade on an SNO node [rhel8]

CVEs

  • CVE-2022-0934

References

  • https://access.redhat.com/security/updates/classification/#moderate
  • https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/8/html/8.7_release_notes/index
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-2.79-24.el8.src.rpm SHA-256: 213d6886e3b139fc5d60aa7e04de2f199af6cd4a1e1743082eaafe0b449cac44
x86_64
dnsmasq-2.79-24.el8.x86_64.rpm SHA-256: ca4707fa75320e8979837fb2c40f02d7216e587375c9e95d1826285378f3ff63
dnsmasq-debuginfo-2.79-24.el8.x86_64.rpm SHA-256: 6a9c5e17517f8935380525960c9fad1877ca068f0c6ab84e14deaeb5df1216d9
dnsmasq-debugsource-2.79-24.el8.x86_64.rpm SHA-256: 9f2a6cb5a7f6fb486707ce50b282996cb081e8668c6025042e89202eeb699a90
dnsmasq-utils-2.79-24.el8.x86_64.rpm SHA-256: 5691f9e43d498b265d92d49ca609cdd8ce4b103fd029806633bb1b3986976a90
dnsmasq-utils-debuginfo-2.79-24.el8.x86_64.rpm SHA-256: e281bd9a547327c78ae9beeb9caf1b7e1af0e2ac21877c6bbce6207680352816

Red Hat Enterprise Linux for IBM z Systems 8

SRPM
dnsmasq-2.79-24.el8.src.rpm SHA-256: 213d6886e3b139fc5d60aa7e04de2f199af6cd4a1e1743082eaafe0b449cac44
s390x
dnsmasq-2.79-24.el8.s390x.rpm SHA-256: d9bb38c0bcdb1adcd74bce9b0df9f83e68f03d4f3c8ec756c12506967ab8b829
dnsmasq-debuginfo-2.79-24.el8.s390x.rpm SHA-256: cf316befcaade2a8ed7531ce4c36a8b4ce0b5c3b6d8f846cce4cab068ecf8f38
dnsmasq-debugsource-2.79-24.el8.s390x.rpm SHA-256: dca2e51b28f2049e9b4c62cea1b334eb10cf6b06db77d2e367e6e989793cf16c
dnsmasq-utils-2.79-24.el8.s390x.rpm SHA-256: 57532b2924f72fde85459e87ed4f4daf12789061486a6cad0084bb1e04cba896
dnsmasq-utils-debuginfo-2.79-24.el8.s390x.rpm SHA-256: ab11d59016640d351163635228eeb8cb40f37ae2c83dd447df612cf56c873005

Red Hat Enterprise Linux for Power, little endian 8

SRPM
dnsmasq-2.79-24.el8.src.rpm SHA-256: 213d6886e3b139fc5d60aa7e04de2f199af6cd4a1e1743082eaafe0b449cac44
ppc64le
dnsmasq-2.79-24.el8.ppc64le.rpm SHA-256: c79b37f96ea20d3a6373963c3ea7cad592cf6102bac6a1aae307b2216b7666e0
dnsmasq-debuginfo-2.79-24.el8.ppc64le.rpm SHA-256: 21190c800255a6c44f4ec205118555ed06176e7aa755ced91093563c0c268be0
dnsmasq-debugsource-2.79-24.el8.ppc64le.rpm SHA-256: 693e63378b4feb21cc9d36ad482f3349b75c6f4ceffea12cc83dae685160f924
dnsmasq-utils-2.79-24.el8.ppc64le.rpm SHA-256: 3b73f99eb72e4c4b3eae047149a8209545354fd0f43b247bfa946db5e7aa98d8
dnsmasq-utils-debuginfo-2.79-24.el8.ppc64le.rpm SHA-256: f9e0f891a8f06da5e5f8fa22e6efacb01bb8194af14a2226411fc79bde182a8d

Red Hat Enterprise Linux for ARM 64 8

SRPM
dnsmasq-2.79-24.el8.src.rpm SHA-256: 213d6886e3b139fc5d60aa7e04de2f199af6cd4a1e1743082eaafe0b449cac44
aarch64
dnsmasq-2.79-24.el8.aarch64.rpm SHA-256: 299459df6af996c27434bd9aab9ff9e70e827086191781a017a15a8ddb51af35
dnsmasq-debuginfo-2.79-24.el8.aarch64.rpm SHA-256: b0f4222a77e0536414e8f5d30de44ac1eef20ef9d439b39740f5ff91b4c14627
dnsmasq-debugsource-2.79-24.el8.aarch64.rpm SHA-256: 6b85867f5b6d396cd002d64287c6c7ce65a6f971f03e52449fa2f436e59f6200
dnsmasq-utils-2.79-24.el8.aarch64.rpm SHA-256: 8ad0a55f273eec8face261f5e7ec87d7b025fd35567b6c210c3d675d9d68cd53
dnsmasq-utils-debuginfo-2.79-24.el8.aarch64.rpm SHA-256: 32feaeafc6f552d856f4b3ed7e1ce6d63162f7a32000a299bc80ba2a4be73a0e

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

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