Astra Linux – Vulnerability in bind9

By spoofing the target resolver with responses that have a malformed ECDSA signature, an attacker can trigger a small memory leak. It is possible to gradually erode the available memory to the point where named crashes occur due to lack of resources...

CVE-2026-5950

An unbounded resend loop vulnerability exists in the BIND 9 resolver state machine during bad-server handling, enabling a remote unauthenticated attacker to cause severe resource exhaustion by sending queries that trigger specific retry conditions. This issue affects BIND 9 versions 9.18.36 throu...

NLnet Labs Unbound 访问控制错误漏洞

NLnet Labs Unbound is a high-performance DNS resolver open-sourced by NLnet Labs. In versions 1.16.2 to 1.25.0 of NLnet Labs Unbound, there is an access control vulnerability. This vulnerability stems from a phantom domain attack. It allows attackers to control phantoms and query the vulnerable...

NLnet Labs Unbound 安全漏洞

NLnet Labs Unbound is a high-performance DNS resolver open-sourced by NLnet Labs. Versions of NLnet Labs Unbound 1.25.0 and earlier contained security vulnerabilities. These vulnerabilities stemmed from the possibility of service degradation when processing a large number of incoming EDNS options...

NLnet Labs Unbound 资源管理错误漏洞

NLnet Labs Unbound is a high-performance DNS resolver open-sourced by NLnet Labs. In versions 1.19.1 to 1.25.0 of NLnet Labs Unbound, there is a resource management vulnerability. This vulnerability stems from incorrect overwriting of target pointers when deep copying data structures in the DNSSE...

NLnet Labs Unbound 安全漏洞

NLnet Labs Unbound is a high-performance DNS resolver open-sourced by NLnet Labs. Versions of NLnet Labs Unbound 1.25.0 and earlier contained security vulnerabilities. These vulnerabilities stemmed from unbound name compression operations when handling large RRsets, which could lead to performanc...

FreeBSD : nginx-devel -- multiple vulnerabilities (1ed77d8e-53bb-11f1-b339-3497f65b111b)

The version of FreeBSD installed on the remote host is prior to tested version. It is, therefore, affected by multiple vulnerabilities as referenced in the 1ed77d8e-53bb-11f1-b339-3497f65b111b advisory. The nginx project reports: nginx 1.31.0 fixes multiple security issues affecting HTTP/2...

ISC BIND 9 安全漏洞

ISC BIND 9 is a domain name system software developed by the ISC organization. ISC BIND 9 has a security vulnerability that stems from an unlimited recursive loop within the resolver’s state machine. This vulnerability could allow remote unauthenticated attackers to cause severe resource...

NLnet Labs Unbound 安全漏洞

NLnet Labs Unbound is a high-performance DNS resolver open-sourced by NLnet Labs. There are security vulnerabilities in the version of NLnet Labs Unbound from 1.14.0 to 1.25.0. These vulnerabilities stem from the truncation of size calculations when encoding multiple NSIDs and/or DNS Cookies, as...

NLnet Labs Unbound 安全漏洞

NLnet Labs Unbound is a high-performance DNS resolver open-sourced by NLnet Labs. Versions of NLnet Labs Unbound 1.25.0 and earlier contained security vulnerabilities. These vulnerabilities were caused by mixed records in the authoritative section, leading to cache poisoning. Attackers could...

UBUNTU-CVE-2026-5950

An unbounded resend loop vulnerability exists in the BIND 9 resolver state machine during bad-server handling, enabling a remote unauthenticated attacker to cause severe resource exhaustion by sending queries that trigger specific retry conditions. This issue affects BIND 9 versions 9.18.36 throu...

UBUNTU-CVE-2026-43617

Rsync version 3.4.2 and prior contain an authorization bypass vulnerability in the rsync daemon's hostname-based access control list enforcement when configured with chroot. Attackers can bypass hostname-based deny rules by controlling the PTR record for their source IP address, allowing...

bind: Resource exhaustion via malformed DNSKEY handling

A vulnerability was found in BIND 9 resolvers, where processing malformed DNSKEY records from a specially crafted zone can lead to resource exhaustion, primarily causing excessive CPU utilization. This issue enables a remote, unauthenticated attacker to degrade resolver performance and potentiall...

Moderate: Red Hat Security Advisory: unbound security update

An update for unbound is now available for Red Hat Enterprise Linux 10. 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 t...

ALSA-2026:18931 Moderate: unbound security update

The unbound packages provide a validating, recursive, and caching DNS or DNSSEC resolver. Security Fixes: unbound: DNSBomb vulnerability CVE-2024-33655 unbound: Unbound domain hijacking via promiscuous records CVE-2025-11411 For more details about the security issues, including the impact, a CVSS...

Moderate: unbound security update

The unbound packages provide a validating, recursive, and caching DNS or DNSSEC resolver. Security Fixes: unbound: DNSBomb vulnerability CVE-2024-33655 unbound: Unbound domain hijacking via promiscuous records CVE-2025-11411 For more details about the security issues, including the impact, a CVSS...

RHEL 9 : unbound (RHSA-2026:18931)

The remote Redhat Enterprise Linux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2026:18931 advisory. The unbound packages provide a validating, recursive, and caching DNS or DNSSEC resolver. Security Fixes: unbound: DNSBomb vulnerability...

GHSA-74R7-3MJM-JC5V eduMFA: Unauthenticated Failcounter Increment on Resolver Tokens via /validate/check

Impact If the resolver parameter is passed, but the user does not exist, all failcounters of tokens in that resolver will be increased. Patches This, along with other issues, was fixed in eduMFA v2.9.1. Workarounds Limiting access to /validate/check to client applications i.e. Shibboleth/FreeRADI...

eduMFA: Unauthenticated Failcounter Increment on Resolver Tokens via /validate/check

Impact If the resolver parameter is passed, but the user does not exist, all failcounters of tokens in that resolver will be increased. Patches This, along with other issues, was fixed in eduMFA v2.9.1. Workarounds Limiting access to /validate/check to client applications i.e. Shibboleth/FreeRADI...

PT-2026-42165

Name of the Vulnerable Software and Affected Versions BIND 9 versions 9.18.36 through 9.18.48 BIND 9 versions 9.20.8 through 9.20.22 BIND 9 versions 9.21.7 through 9.21.21 BIND 9 versions 9.18.36-S1 through 9.18.48-S1 BIND 9 versions 9.20.9-S1 through 9.20.22-S1 Description An unbounded resend lo...