Astra Linux – Vulnerability in unbound

NLnet Labs Unbound, including version 1.16.1, is vulnerable to a new type of “ghost domain name” attack. The vulnerability operates by targeting an Unbound instance. Unbound is queried for a subdomain of a rogue domain name. The rogue nameserver returns delegation information for the subdomain,...

Astra Linux – Vulnerability in unbound

Before version 1.9.5, Unbound allowed an out-of-bounds write operation through a compressed name in rdatacopy. NOTE: The vendor disputes that this is a vulnerability. Although the code may be vulnerable, an ongoing Unbound installation cannot be remotely or locally exploited...

Astra Linux – Vulnerability in unbound

Before version 1.9.5, Unbound allowed an integer overflow in the regional allocator through the ALIGNUP macro. NOTE: The vendor denies that this is a vulnerability. Although the code may be vulnerable, an ongoing Unbound installation cannot be remotely or locally exploited...

Astra Linux – Vulnerability in unbound

Unbound before version 1.9.5 allows an out-of-bounds write access in sldnsbgettokenpar. NOTE: The vendor denies that this is a vulnerability. Although the code may be vulnerable, an ongoing Unbound installation cannot be remotely or locally exploited...

Astra Linux – Vulnerability in unbound

Unbound before version 1.9.5 can cause assertion failures and denial of service in synthcname. NOTE: The vendor denies that this is a vulnerability. Although the code may be vulnerable, an active UnBound installation cannot be exploited remotely or locally...

Astra Linux – Vulnerability in unbound

Unbound before version 1.9.5 allows assertion failures and denial of service in dnamepktcopy due to an invalid packet. NOTE: The vendor disputes that this is a vulnerability. Although the code may be vulnerable, an ongoing Unbound installation cannot be remotely or locally exploited...

Astra Linux – Vulnerability in unbound

Unbound versions 1.6.4 through 1.9.4 contain a vulnerability in the ipsec module that can lead to the execution of shell code after receiving a specially crafted answer. This issue can only be exploited if Unbound was compiled with the --enable-ipsecmod option, and Isecmod is enabled and utilized...

Astra Linux – Vulnerability in unbound

A vulnerability in caching resolvers called “Rebirthday Attack” has been discovered in resolvers that support EDNS Client Subnet ECS. Unbound is also vulnerable when compiled with ECS support, i.e., with the option --enable-subnet, and when configured to send ECS information along with queries to...

Astra Linux – Vulnerabilities in unbound, bind9, and dnsmasq

Certain aspects of the DNS protocol’s DNSSEC mechanism described in RFC 4033, 4034, 4035, 6840, and related RFCs allow remote attackers to cause a denial of service attack by manipulating one or more DNSSEC responses. This issue is known as the “KeyTrap” problem. One of the concerns is that, when...

Astra Linux – Vulnerability in unbound

Before version 1.9.5, Unbound allowed for an integer overflow in sldnsstr2wirednamebuforigin, resulting in an out-of-bounds write. NOTE: The vendor denies that this is a vulnerability. Although the code may be vulnerable, an ongoing Unbound installation cannot be remotely or locally exploited...

Astra Linux – Vulnerability in unbound

Unbound from NLnet Labs, including versions up to and including 1.12.0, and NSD from NLnet Labs, including versions up to and including 4.3.3, contain a local vulnerability that allows for a local symlink attack. When creating the PID file, Unbound and NSD either create the file if it does not...

Astra Linux – Vulnerability in unbound

Before version 1.9.5, Unbound allowed assertion failures due to a compressed name in dnamepktcopy. NOTE: The vendor disputes that this is a vulnerability. Although the code may be vulnerable, an ongoing Unbound installation cannot be exploited remotely or locally...

Astra Linux – Vulnerability in unbound

Unbound before version 1.9.5 allows for an integer overflow in the size calculation in dnscrypt/dnscrypt.c. NOTE: The vendor denies that this is a vulnerability. Although the code may be vulnerable, an active Unbound installation cannot be exploited remotely or locally...

Astra Linux – Vulnerability in unbound

Before version 1.9.5, Unbound allowed an infinite loop through a compressed name in dnamepktcopy. NOTE: The vendor disputes that this is a vulnerability. Although the code may be vulnerable, an ongoing Unbound installation cannot be exploited remotely or locally...

PT-2026-42125

Name of the Vulnerable Software and Affected Versions NLnet Labs Unbound versions 1.19.1 through 1.25.0 Description A flaw in the DNSSEC validator allows for denial of service and potential remote code execution. The issue occurs during the deep copying of a data structure when DS sub-queries...

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...

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...

CVE-2026-42960

NLnet Labs Unbound up to and including version 1.25.0 is vulnerable to poisoning via promiscuous records for the authority section. Promiscuous RRSets that complement DNS replies in the authority section can be used to trick Unbound to cache such records. If an adversary is able to attach such...

NLnet Labs Unbound 缓冲区错误漏洞

NLnet Labs Unbound is a high-performance DNS resolver open-sourced by NLnet Labs. In versions 1.6.2 to 1.25.0 of NLnet Labs Unbound, there is a buffer error vulnerability. This vulnerability stems from a potential stack overflow during the DNSCrypt packet reading process. Malicious attackers can...

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 from 1.14.0 to 1.25.0 contain security vulnerabilities. These vulnerabilities stem from inconsistent locking mechanisms, and under certain conditions, they may lead to heap reclamation...