The remote Alibaba Cloud Linux 3 host has packages installed that are affected by multiple vulnerabilities as referenced in the ALINUX3-SA-2024:0027 advisory.

    Package updates are available for Alibaba Cloud Linux 3 that fix the following vulnerabilities:

    CVE-2022-3204:
    A vulnerability named 'Non-Responsive Delegation Attack' (NRDelegation Attack) has been discovered in     various DNS resolving software. The NRDelegation Attack works by having a malicious delegation with a     considerable number of non responsive nameservers. The attack starts by querying a resolver for a record     that relies on those unresponsive nameservers. The attack can cause a resolver to spend a lot of     time/resources resolving records under a malicious delegation point where a considerable number of     unresponsive NS records reside. It can trigger high CPU usage in some resolver implementations that     continually look in the cache for resolved NS records in that delegation. This can lead to degraded     performance and eventually denial of service in orchestrated attacks. Unbound does not suffer from high     CPU usage, but resources are still needed for resolving the malicious delegation. Unbound will keep trying     to resolve the record until hard limits are reached. Based on the nature of the attack and the replies,     different limits could be reached. From version 1.16.3 on, Unbound introduces fixes for better performance     when under load, by cutting opportunistic queries for nameserver discovery and DNSKEY prefetching and     limiting the number of times a delegation point can issue a cache lookup for missing records.

    CVE-2023-50387:
    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-2023-50868:
    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.

Tenable has extracted the preceding description block directly from the Alibaba Cloud 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 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.

An update of the bindutils package has been released.

The Rocky Linux 9.2 host has packages installed that are affected by multiple vulnerabilities as referenced in the CIQ ciqsa-2026_0488 advisory.

    This advisory aggregates security fixes for the unbound SRPM in CIQ LTS 9.2. It addresses 12 CVEs:
    CVE-2011-4528, CVE-2014-8602, CVE-2019-16866, CVE-2023-50868, CVE-2020-12662, and 7 more.

Tenable has extracted the preceding description block directly from the CIQ 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 Rocky Linux 9.6 host has packages installed that are affected by multiple vulnerabilities as referenced in the CIQ ciqsa-2026_1369 advisory.

    This advisory aggregates security fixes for the unbound SRPM in CIQ LTS 9.6. It addresses 28 CVEs:
    CVE-2026-42534, CVE-2026-32792, CVE-2011-4528, CVE-2014-8602, CVE-2025-11411, and 23 more.

Tenable has extracted the preceding description block directly from the CIQ 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 Rocky Linux 8.8 host has packages installed that are affected by multiple vulnerabilities as referenced in the CIQ ciqsa-2026_0297 advisory.

    This advisory aggregates security fixes for the dnsmasq SRPM in CIQ LTS 8.8. It addresses 3 CVEs:
    CVE-2023-50387, CVE-2023-50868, CVE-2023-28450.

Tenable has extracted the preceding description block directly from the CIQ 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 Rocky Linux 8.6 host has packages installed that are affected by multiple vulnerabilities as referenced in the CIQ ciqsa-2026_0967 advisory.

    This advisory aggregates security fixes for the bind SRPM in CIQ LTS 8.6. It addresses 5 CVEs:
    CVE-2023-3341, CVE-2023-4408, CVE-2023-2828, CVE-2023-50868, CVE-2023-50387.

Tenable has extracted the preceding description block directly from the CIQ 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	Name	Product	Family	Published	Updated	Severity
236285	Alibaba Cloud Linux 3 : 0027: unbound (ALINUX3-SA-2024:0027)	Nessus	Alibaba Cloud Linux Local Security Checks	5/14/2025	5/14/2025	high
239900	TencentOS Server 3: bind and dhcp (TSSA-2024:0125)	Nessus	Tencent Local Security Checks	6/16/2025	11/20/2025	high
204398	Photon OS 4.0: Bindutils PHSA-2024-4.0-0563	Nessus	PhotonOS Local Security Checks	7/24/2024	11/2/2026	high
353828	Rocky Linux 9.2 [CIQ] Security Update: python3-unbound / python3-unbound-debuginfo / unbound / etc Multiple Vulnerabilities (ciqsa-2026_0488)	Nessus	Rocky Linux Local Security Checks	10/1/2026	10/12/2026	high
354372	Rocky Linux 9.6 [CIQ] Security Update: python3-unbound / python3-unbound-debuginfo / unbound / etc Multiple Vulnerabilities (ciqsa-2026_1369)	Nessus	Rocky Linux Local Security Checks	10/1/2026	10/12/2026	high
354480	Rocky Linux 8.8 [CIQ] Security Update: dnsmasq / dnsmasq-debuginfo / dnsmasq-debugsource / dnsmasq-utils / etc Multiple Vulnerabilities (ciqsa-2026_0297)	Nessus	Rocky Linux Local Security Checks	10/1/2026	10/12/2026	high
357134	Rocky Linux 8.6 [CIQ] Security Update: bind / bind-chroot / bind-debuginfo / bind-debugsource / bind-devel / etc Multiple Vulnerabilities (ciqsa-2026_0967)	Nessus	Rocky Linux Local Security Checks	10/1/2026	10/12/2026	high

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