It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2023-2024-550 advisory.

    The DNS message parsing code in `named` includes a section whose computational complexity is overly high.
    It does not cause problems for typical DNS traffic, but crafted queries and responses may cause excessive     CPU load on the affected `named` instance by exploiting this flaw. This issue affects both authoritative     servers and recursive resolvers.This issue affects BIND 9 versions 9.0.0 through 9.16.45, 9.18.0 through     9.18.21, 9.19.0 through 9.19.19, 9.9.3-S1 through 9.11.37-S1, 9.16.8-S1 through 9.16.45-S1, and 9.18.11-S1     through 9.18.21-S1. (CVE-2023-4408)

    Certain DNSSEC aspects of the DNS protocol (in RFC 4035 and related RFCs) allow remote attackers to cause     a denial of service (CPU consumption) via one or more DNSSEC responses when there is a zone with many     DNSKEY and RRSIG records, aka the KeyTrap issue. The protocol specification implies that an algorithm     must evaluate all combinations of DNSKEY and RRSIG records. (CVE-2023-50387)

    The Closest Encloser Proof aspect of the DNS protocol (in RFC 5155 when RFC 9276 guidance is skipped)     allows remote attackers to cause a denial of service (CPU consumption for SHA-1 computations) via DNSSEC     responses in a random subdomain attack, aka the NSEC3 issue. The RFC 5155 specification implies that an     algorithm must perform thousands of iterations of a hash function in certain situations. (CVE-2023-50868)

    A flaw in query-handling code can cause `named` to exit prematurely with an assertion failure when:

    - `nxdomain-redirect <domain>;` is configured, and- the resolver receives a PTR query for an RFC 1918     address that would normally result in an authoritative NXDOMAIN response.This issue affects BIND 9     versions 9.12.0 through 9.16.45, 9.18.0 through 9.18.21, 9.19.0 through 9.19.19, 9.16.8-S1 through     9.16.45-S1, and 9.18.11-S1 through 9.18.21-S1. (CVE-2023-5517)

    A bad interaction between DNS64 and serve-stale may cause `named` to crash with an assertion failure     during recursive resolution, when both of these features are enabled.This issue affects BIND 9 versions     9.16.12 through 9.16.45, 9.18.0 through 9.18.21, 9.19.0 through 9.19.19, 9.16.12-S1 through 9.16.45-S1,     and 9.18.11-S1 through 9.18.21-S1. (CVE-2023-5679)

    To keep its cache database efficient, `named` running as a recursive resolver occasionally attempts to     clean up the database. It uses several methods, including some that are asynchronous: a small chunk of     memory pointing to the cache element that can be cleaned up is first allocated and then queued for later     processing. It was discovered that if the resolver is continuously processing query patterns triggering     this type of cache-database maintenance, `named` may not be able to handle the cleanup events in a timely     manner. This in turn enables the list of queued cleanup events to grow infinitely large over time,     allowing the configured `max-cache-size` limit to be significantly exceeded.This issue affects BIND 9     versions 9.16.0 through 9.16.45 and 9.16.8-S1 through 9.16.45-S1. (CVE-2023-6516)

Tenable has extracted the preceding description block directly from the tested product 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 remote Redhat Enterprise Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2024:1647 advisory.

    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):

    * bind9.16: Preparing an NSEC3 closest encloser proof can exhaust CPU resources (CVE-2023-50868)

    * bind9.16: KeyTrap - Extreme CPU consumption in DNSSEC validator (CVE-2023-50387)

    * bind9.16: Specific recursive query patterns may lead to an out-of-memory condition (CVE-2023-6516)

    * bind9.16: Enabling both DNS64 and serve-stale may cause an assertion failure during recursive resolution     (CVE-2023-5679)

    * bind9.16: Querying RFC 1918 reverse zones may cause an assertion failure when nxdomain-redirect is     enabled (CVE-2023-5517)

    * bind9.16: bind9: Parsing large DNS messages may cause excessive CPU load (CVE-2023-4408)

    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.

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 remote AlmaLinux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the ALSA-2024:1782 advisory.

  - The DNS message parsing code in `named` includes a section whose computational complexity is overly high.
    It does not cause problems for typical DNS traffic, but crafted queries and responses may cause excessive     CPU load on the affected `named` instance by exploiting this flaw. This issue affects both authoritative     servers and recursive resolvers. This issue affects BIND 9 versions 9.0.0 through 9.16.45, 9.18.0 through     9.18.21, 9.19.0 through 9.19.19, 9.9.3-S1 through 9.11.37-S1, 9.16.8-S1 through 9.16.45-S1, and 9.18.11-S1     through 9.18.21-S1. (CVE-2023-4408)

  - Certain DNSSEC aspects of the DNS protocol (in RFC 4033, 4034, 4035, 6840, and related RFCs) allow remote     attackers to cause a denial of service (CPU consumption) via one or more DNSSEC responses, aka the     KeyTrap issue. One of the concerns is that, when there is a zone with many DNSKEY and RRSIG records, the     protocol specification implies that an algorithm must evaluate all combinations of DNSKEY and RRSIG     records. (CVE-2023-50387)

  - The Closest Encloser Proof aspect of the DNS protocol (in RFC 5155 when RFC 9276 guidance is skipped)     allows remote attackers to cause a denial of service (CPU consumption for SHA-1 computations) via DNSSEC     responses in a random subdomain attack, aka the NSEC3 issue. The RFC 5155 specification implies that an     algorithm must perform thousands of iterations of a hash function in certain situations. (CVE-2023-50868)

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

The remote Redhat Enterprise Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2024:1782 advisory.

    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.

    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):

    * bind9: Parsing large DNS messages may cause excessive CPU load (CVE-2023-4408)

    * bind9: KeyTrap - Extreme CPU consumption in DNSSEC validator (CVE-2023-50387)

    * bind9: Preparing an NSEC3 closest encloser proof can exhaust CPU resources (CVE-2023-50868)

    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.

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 remote Redhat Enterprise Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2024:2721 advisory.

    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.

    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: KeyTrap - Extreme CPU consumption in DNSSEC validator (CVE-2023-50387)

    * bind: Preparing an NSEC3 closest encloser proof can exhaust CPU resources (CVE-2023-50868)

    * bind: Parsing large DNS messages may cause excessive CPU load (CVE-2023-4408)

    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.

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 remote Redhat Enterprise Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2024:3271 advisory.

    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.

    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):

    * bind9: Parsing large DNS messages may cause excessive CPU load (CVE-2023-4408)

    * bind9: KeyTrap - Extreme CPU consumption in DNSSEC validator (CVE-2023-50387)

    * bind9: Preparing an NSEC3 closest encloser proof can exhaust CPU resources (CVE-2023-50868)

    Bug Fix:

    * dhcp rebuilt after API change of bind-export-libs

    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.

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.

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

    To keep its cache database efficient, `named` running as a recursive resolver occasionally attempts to     clean up the database. It uses several methods, including some that are asynchronous: a small chunk of     memory pointing to the cache element that can be cleaned up is first allocated and then queued for later     processing. It was discovered that if the resolver is continuously processing query patterns triggering     this type of cache-database maintenance, `named` may not be able to handle the cleanup events in a timely     manner. This in turn enables the list of queued cleanup events to grow infinitely large over time,     allowing the configured `max-cache-size` limit to be significantly exceeded.(CVE-2023-6516)

    A bad interaction between DNS64 and serve-stale may cause `named` to crash with an assertion failure     during recursive resolution, when both of these features are enabled.(CVE-2023-5679)

    A flaw in query-handling code can cause `named` to exit prematurely with an assertion failure when: -     `nxdomain-redirect domain;` is configured, and - the resolver receives a PTR query for an RFC 1918     address that would normally result in an authoritative NXDOMAIN response. (CVE-2023-5517)

    The Closest Encloser Proof aspect of the DNS protocol (in RFC 5155 when RFC 9276 guidance is skipped)     allows remote attackers to cause a denial of service (CPU consumption for SHA-1 computations) via DNSSEC     responses in a random subdomain attack, aka the 'NSEC3' issue. The RFC 5155 specification implies that an     algorithm must perform thousands of iterations of a hash function in certain situations.(CVE-2023-50868)

    Certain DNSSEC aspects of the DNS protocol (in RFC 4033, 4034, 4035, 6840, and related RFCs) allow remote     attackers to cause a denial of service (CPU consumption) via one or more DNSSEC responses, aka the     'KeyTrap' issue. One of the concerns is that, when there is a zone with many DNSKEY and RRSIG records, the     protocol specification implies that an algorithm must evaluate all combinations of DNSKEY and RRSIG     records.(CVE-2023-50387)

    The DNS message parsing code in `named` includes a section whose computational complexity is overly high.
    It does not cause problems for typical DNS traffic, but crafted queries and responses may cause excessive     CPU load on the affected `named` instance by exploiting this flaw. This issue affects both authoritative     servers and recursive resolvers.(CVE-2023-4408)

Tenable has extracted the preceding description block directly from the EulerOS Virtualization bind 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 remote SUSE Linux SLES12 / SLES_SAP12 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2024:1894-1 advisory.

    - CVE-2023-50387: Fixed validating DNS messages containing a lot of DNSSEC signatures that could have let     to a denial-of-service (bsc#1219823).
    - CVE-2023-50868: Fixed NSEC3 closest encloser proof that could have let to a denial-of-service     (bsc#1219826).
    - CVE-2023-4408: Fixed parsing DNS messages with many different names that could have let to a denial-of-     service (bsc#1219851).

Tenable has extracted the preceding description block directly from the SUSE 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 remote SUSE Linux SLES15 / SLES_SAP15 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2024:2033-1 advisory.

    - CVE-2023-4408: Fixed denial of service during DNS message parsing with different names (bsc#1219851)
     - CVE-2023-50387: Fixed denial of service during DNS messages validation with DNSSEC signatures     (bsc#1219823)
     - CVE-2023-50868: Fixed denial of service during NSEC3 closest encloser proof preparation (bsc#1219826)
     - CVE-2023-5517: Fixed denial of service caused by specific queries with nxdomain-redirect enabled     (bsc#1219852)
     - CVE-2023-6516: Fixed denial of service caused by specific queries that continuously triggered cache     database maintenance (bsc#1219854)

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

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

An update of the bindutils package has been released.

The version of AHV installed on the remote host is prior to 20230302.102005. It is, therefore, affected by multiple vulnerabilities as referenced in the NXSA-AHV-20230302.101026 advisory.

  - A crafted NTFS image can trigger a heap-based buffer overflow, caused by an unsanitized attribute in     ntfs_get_attribute_value, in NTFS-3G < 2021.8.22. (CVE-2021-39263)

  - EDK2's Network Package is susceptible to a buffer overflow vulnerability when processing DNS Servers     option from a DHCPv6 Advertise message. This vulnerability can be exploited by an attacker to gain     unauthorized access and potentially lead to a loss of Confidentiality, Integrity and/or Availability.
    (CVE-2023-45234)

  - Certain DNSSEC aspects of the DNS protocol (in RFC 4033, 4034, 4035, 6840, and related RFCs) allow remote     attackers to cause a denial of service (CPU consumption) via one or more DNSSEC responses, aka the     KeyTrap issue. One of the concerns is that, when there is a zone with many DNSKEY and RRSIG records, the     protocol specification implies that an algorithm must evaluate all combinations of DNSKEY and RRSIG     records. (CVE-2023-50387)

  - The Closest Encloser Proof aspect of the DNS protocol (in RFC 5155 when RFC 9276 guidance is skipped)     allows remote attackers to cause a denial of service (CPU consumption for SHA-1 computations) via DNSSEC     responses in a random subdomain attack, aka the NSEC3 issue. The RFC 5155 specification implies that an     algorithm must perform thousands of iterations of a hash function in certain situations. (CVE-2023-50868)

  - close_altfile in filename.c in less before 606 omits shell_quote calls for LESSCLOSE. (CVE-2022-48624)

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 Tencent Linux installed on the remote TencentOS Server 3 host is prior to tested version. It is, therefore, affected by multiple vulnerabilities as referenced in the TSSA-2024:0125 advisory.

    Package updates are available for TencentOS Server 3 that fix the following vulnerabilities:

    CVE-2023-4408:
    A flaw was found in the bind package. This issue may allow a remote attacker with no specific privileges     to craft a specially long DNS message leading to an excessive and uncontrolled CPU usage, the server being     unavailable, and a Denial of Service.

    CVE-2023-50387:
    Processing specially crafted responses coming from DNSSEC-signed zones can lead to uncontrolled CPU usage,     leading to a Denial of Service in the DNSSEC-validating resolver side.

    This vulnerability applies only for systems where DNSSEC validation is enabled.

    CVE-2023-50868:
    A flaw was found in bind9. By flooding a DNSSEC resolver with responses coming from a DNSEC-signed zone     using NSEC3, an attacker can lead the targeted resolver to a CPU exhaustion, further leading to a Denial     of Service on the targeted host.

    This vulnerability applies only for systems where DNSSEC validation is enabled.

Tenable has extracted the preceding description block directly from the Tencent 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.

ID	名称	产品	系列	发布时间	最近更新时间	严重程度
191615	Amazon Linux 2023 : bind, bind-chroot, bind-devel (ALAS2023-2024-550)	Nessus	Amazon Linux Local Security Checks	2024/3/6	2025/12/24	high
192863	RHEL 8 : bind9.16 (RHSA-2024:1647)	Nessus	Red Hat Local Security Checks	2024/4/2	2025/12/24	high
193277	AlmaLinux 8 : bind and dhcp (ALSA-2024:1782)	Nessus	Alma Linux Local Security Checks	2024/4/12	2025/12/24	high
194408	RHEL 8 : bind and dhcp (RHSA-2024:1782)	Nessus	Red Hat Local Security Checks	2024/4/28	2025/12/24	high
195113	RHEL 8 : bind and dhcp (RHSA-2024:2721)	Nessus	Red Hat Local Security Checks	2024/5/7	2025/12/24	high
197759	RHEL 8 : bind and dhcp (RHSA-2024:3271)	Nessus	Red Hat Local Security Checks	2024/5/23	2025/12/24	high
198102	EulerOS Virtualization 2.11.1 : bind (EulerOS-SA-2024-1712)	Nessus	Huawei Local Security Checks	2024/5/29	2025/12/24	high
200079	SUSE SLES12: bind / bind-chrootenv / bind-devel / bind-doc / bind-utils / etc (SUSE-SU-2024:1894-1)	Nessus	SuSE Local Security Checks	2024/6/4	2026/6/26	high
200689	SUSE SLES15: bind / bind-chrootenv / bind-devel / bind-doc / bind-utils / etc (SUSE-SU-2024:2033-1)	Nessus	SuSE Local Security Checks	2024/6/18	2026/6/26	high
204398	Photon OS 4.0: Bindutils PHSA-2024-4.0-0563	Nessus	PhotonOS Local Security Checks	2024/7/24	2025/12/24	high
206824	Nutanix AHV : Multiple Vulnerabilities (NXSA-AHV-20230302.101026)	Nessus	Misc.	2024/9/9	2025/10/6	medium
239900	TencentOS Server 3: bind and dhcp (TSSA-2024:0125)	Nessus	Tencent Local Security Checks	2025/6/16	2025/11/20	high

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