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redhatRedHatRHSA-2022:8385
HistoryNov 15, 2022 - 6:23 a.m.

(RHSA-2022:8385) Moderate: dhcp security and enhancement update

2022-11-1506:23:05
access.redhat.com
20
dhcp protocol
network configuration
security fix
dns vulnerability
red hat enterprise linux.

CVSS2

4

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

SINGLE

Confidentiality Impact

NONE

Integrity Impact

PARTIAL

Availability Impact

NONE

AV:N/AC:L/Au:S/C:N/I:P/A:N

CVSS3

6.8

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

HIGH

User Interaction

NONE

Scope

CHANGED

Confidentiality Impact

NONE

Integrity Impact

HIGH

Availability Impact

NONE

CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:N/I:H/A:N

EPSS

0.002

Percentile

54.6%

JSON

The Dynamic Host Configuration Protocol (DHCP) is a protocol that allows individual devices on an IP network to get their own network configuration information, including an IP address, a subnet mask, and a broadcast address. The dhcp packages provide a relay agent and ISC DHCP service required to enable and administer DHCP on a network.

Security Fix(es):

  • bind: DNS forwarders - cache poisoning vulnerability (CVE-2021-25220)

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 9.1 Release Notes linked from the References section.

OSVersionArchitecturePackageVersionFilename
RedHat9ppc64ledhcp-server< 4.4.2-17.b1.el9dhcp-server-4.4.2-17.b1.el9.ppc64le.rpm
RedHat9x86_64dhcp-server< 4.4.2-17.b1.el9dhcp-server-4.4.2-17.b1.el9.x86_64.rpm
RedHat9aarch64dhcp-debugsource< 4.4.2-17.b1.el9dhcp-debugsource-4.4.2-17.b1.el9.aarch64.rpm
RedHat9s390xdhcp-debuginfo< 4.4.2-17.b1.el9dhcp-debuginfo-4.4.2-17.b1.el9.s390x.rpm
RedHat9aarch64dhcp-relay< 4.4.2-17.b1.el9dhcp-relay-4.4.2-17.b1.el9.aarch64.rpm
RedHat9x86_64dhcp-debugsource< 4.4.2-17.b1.el9dhcp-debugsource-4.4.2-17.b1.el9.x86_64.rpm
RedHat9s390xdhcp-relay-debuginfo< 4.4.2-17.b1.el9dhcp-relay-debuginfo-4.4.2-17.b1.el9.s390x.rpm
RedHat9x86_64dhcp-client< 4.4.2-17.b1.el9dhcp-client-4.4.2-17.b1.el9.x86_64.rpm
RedHat9aarch64dhcp-client-debuginfo< 4.4.2-17.b1.el9dhcp-client-debuginfo-4.4.2-17.b1.el9.aarch64.rpm
RedHat9ppc64ledhcp-debugsource< 4.4.2-17.b1.el9dhcp-debugsource-4.4.2-17.b1.el9.ppc64le.rpm
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1-10 of 331

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CVSS2

4

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

SINGLE

Confidentiality Impact

NONE

Integrity Impact

PARTIAL

Availability Impact

NONE

AV:N/AC:L/Au:S/C:N/I:P/A:N

CVSS3

6.8

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

HIGH

User Interaction

NONE

Scope

CHANGED

Confidentiality Impact

NONE

Integrity Impact

HIGH

Availability Impact

NONE

CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:N/I:H/A:N

EPSS

0.002

Percentile

54.6%

JSON
Related for RHSA-2022:8385
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