According to the versions of the dhcp package installed, the EulerOS installation on the remote host is affected by the following vulnerabilities :

  - In BIND 9.8.5 -> 9.8.8, 9.9.3 -> 9.11.29, 9.12.0 -> 9.16.13, and versions BIND 9.9.3-S1 -> 9.11.29-S1 and     9.16.8-S1 -> 9.16.13-S1 of BIND 9 Supported Preview Edition, as well as release versions 9.17.0 -> 9.17.11     of the BIND 9.17 development branch, when a vulnerable version of named receives a malformed IXFR     triggering the flaw described above, the named process will terminate due to a failed assertion the next     time the transferred secondary zone is refreshed. (CVE-2021-25214)

  - In BIND 9.0.0 -> 9.11.29, 9.12.0 -> 9.16.13, and versions BIND 9.9.3-S1 -> 9.11.29-S1 and 9.16.8-S1 ->     9.16.13-S1 of BIND Supported Preview Edition, as well as release versions 9.17.0 -> 9.17.11 of the BIND     9.17 development branch, when a vulnerable version of named receives a query for a record triggering the     flaw described above, the named process will terminate due to a failed assertion check. The vulnerability     affects all currently maintained BIND 9 branches (9.11, 9.11-S, 9.16, 9.16-S, 9.17) as well as all other     versions of BIND 9. (CVE-2021-25215)

  - In BIND 9.3.0 -> 9.11.35, 9.12.0 -> 9.16.21, and versions 9.9.3-S1 -> 9.11.35-S1 and 9.16.8-S1 ->     9.16.21-S1 of BIND Supported Preview Edition, as well as release versions 9.17.0 -> 9.17.18 of the BIND     9.17 development branch, exploitation of broken authoritative servers using a flaw in response processing     can cause degradation in BIND resolver performance. The way the lame cache is currently designed makes it     possible for its internal data structures to grow almost infinitely, which may cause significant delays in     client query processing. (CVE-2021-25219)

  - BIND 9.11.0 -> 9.11.36 9.12.0 -> 9.16.26 9.17.0 -> 9.18.0 BIND Supported Preview Editions: 9.11.4-S1 ->     9.11.36-S1 9.16.8-S1 -> 9.16.26-S1 Versions of BIND 9 earlier than those shown - back to 9.1.0, including     Supported Preview Editions - are also believed to be affected but have not been tested as they are EOL.
    The cache could become poisoned with incorrect records leading to queries being made to the wrong servers,     which might also result in false information being returned to clients. (CVE-2021-25220)

  - In ISC DHCP 4.4.0 -> 4.4.3, ISC DHCP 4.1-ESV-R1 -> 4.1-ESV-R16-P1, when the function     option_code_hash_lookup() is called from add_option(), it increases the option's refcount field. However,     there is not a corresponding call to option_dereference() to decrement the refcount field. The function     add_option() is only used in server responses to lease query packets. Each lease query response calls this     function for several options, so eventually, the reference counters could overflow and cause the server to     abort. (CVE-2022-2928)

  - In ISC DHCP 1.0 -> 4.4.3, ISC DHCP 4.1-ESV-R1 -> 4.1-ESV-R16-P1 a system with access to a DHCP server,     sending DHCP packets crafted to include fqdn labels longer than 63 bytes, could eventually cause the     server to run out of memory. (CVE-2022-2929)

Note that Tenable Network Security has extracted the preceding description block directly from the EulerOS security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

According to the versions of the dhcp package installed, the EulerOS Virtualization installation on the remote host is affected by the following vulnerabilities :

  - In ISC DHCP 4.4.0 -> 4.4.3, ISC DHCP 4.1-ESV-R1 -> 4.1-ESV-R16-P1, when the function     option_code_hash_lookup() is called from add_option(), it increases the option's refcount field. However,     there is not a corresponding call to option_dereference() to decrement the refcount field. The function     add_option() is only used in server responses to lease query packets. Each lease query response calls this     function for several options, so eventually, the reference counters could overflow and cause the server to     abort. (CVE-2022-2928)

  - In ISC DHCP 1.0 -> 4.4.3, ISC DHCP 4.1-ESV-R1 -> 4.1-ESV-R16-P1 a system with access to a DHCP server,     sending DHCP packets crafted to include fqdn labels longer than 63 bytes, could eventually cause the     server to run out of memory. (CVE-2022-2929)

Note that Tenable Network Security has extracted the preceding description block directly from the EulerOS security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

The remote Redhat Enterprise Linux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2023:2502 advisory.

    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):

    * dhcp: option refcount overflow when leasequery is enabled leading to dhcpd abort (CVE-2022-2928)

    * dhcp: DHCP memory leak (CVE-2022-2929)

    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 9.2 Release Notes     linked from the References section.

Tenable has extracted the preceding description block directly from the Red Hat Enterprise Linux security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The version of dhcp installed on the remote host is prior to 4.4.3_P1. It is, therefore, affected by multiple vulnerabilities as referenced in the SSA:2022-278-01 advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

According to the versions of the dhcp packages installed, the EulerOS Virtualization installation on the remote host is affected by the following vulnerabilities :

  - In ISC DHCP 4.4.0 -> 4.4.3, ISC DHCP 4.1-ESV-R1 -> 4.1-ESV-R16-P1, when the function     option_code_hash_lookup() is called from add_option(), it increases the option's refcount field. However,     there is not a corresponding call to option_dereference() to decrement the refcount field. The function     add_option() is only used in server responses to lease query packets. Each lease query response calls this     function for several options, so eventually, the reference counters could overflow and cause the server to     abort. (CVE-2022-2928)

  - In ISC DHCP 1.0 -> 4.4.3, ISC DHCP 4.1-ESV-R1 -> 4.1-ESV-R16-P1 a system with access to a DHCP server,     sending DHCP packets crafted to include fqdn labels longer than 63 bytes, could eventually cause the     server to run out of memory. (CVE-2022-2929)

Note that Tenable Network Security has extracted the preceding description block directly from the EulerOS security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

The remote CentOS Linux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the dhcp-4.4.2-18.b1.el9 build changelog.

  - In ISC DHCP 4.4.0 -> 4.4.3, ISC DHCP 4.1-ESV-R1 -> 4.1-ESV-R16-P1, when the function     option_code_hash_lookup() is called from add_option(), it increases the option's refcount field. However,     there is not a corresponding call to option_dereference() to decrement the refcount field. The function     add_option() is only used in server responses to lease query packets. Each lease query response calls this     function for several options, so eventually, the reference counters could overflow and cause the server to     abort. (CVE-2022-2928)

  - In ISC DHCP 1.0 -> 4.4.3, ISC DHCP 4.1-ESV-R1 -> 4.1-ESV-R16-P1 a system with access to a DHCP server,     sending DHCP packets crafted to include fqdn labels longer than 63 bytes, could eventually cause the     server to run out of memory. (CVE-2022-2929)

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote Fedora 38 host has a package installed that is affected by multiple vulnerabilities as referenced in the FEDORA-2022-5c58ef733f advisory.

    Automatic update for dhcp-4.4.3-4.P1.fc38.

    ##### **Changelog**

    ```
    * Wed Oct  5 2022 Martin Osvald <mosvald@redhat.com> - 12:4.4.3-4.P1
    - New version 4.4.3-P1 (rhbz#2132240)
    - Fix for CVE-2022-2928 (rhbz#2132429)
    - Fix for CVE-2022-2929 (rhbz#2132430)

    ```

Tenable has extracted the preceding description block directly from the Fedora security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

ID	名称	产品	系列	发布时间	最近更新时间	严重程度
168992	EulerOS 2.0 SP10 : dhcp (EulerOS-SA-2022-2842)	Nessus	Huawei Local Security Checks	2022/12/21	2022/12/21	medium
174849	EulerOS Virtualization 2.9.1 : dhcp (EulerOS-SA-2023-1622)	Nessus	Huawei Local Security Checks	2023/4/27	2023/4/27	medium
175469	RHEL 9 : dhcp (RHSA-2023:2502)	Nessus	Red Hat Local Security Checks	2023/5/13	2024/11/7	medium
176363	Slackware Linux 14.0 / 14.1 / 14.2 / 15.0 / current dhcp Multiple Vulnerabilities (SSA:2022-278-01)	Nessus	Slackware Local Security Checks	2023/5/25	2023/5/29	medium
178868	EulerOS Virtualization 3.0.6.6 : dhcp (EulerOS-SA-2023-2409)	Nessus	Huawei Local Security Checks	2023/7/26	2023/7/26	medium
191202	CentOS 9 : dhcp-4.4.2-18.b1.el9	Nessus	CentOS Local Security Checks	2024/2/29	2024/4/26	medium
211227	Fedora 38 : dhcp (2022-5c58ef733f)	Nessus	Fedora Local Security Checks	2024/11/14	2024/11/14	medium

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