Astra Linux – Vulnerability in unbound

A vulnerability called “Non-Responsive Delegation Attack” NRDelegation Attack has been discovered in various DNS resolution software. The NRDelegation Attack works by creating a malicious delegation with a significant number of non-responsive name servers. The attack begins by querying a resolver...

Astra Linux – Vulnerability in Linux, Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: phonet/pep: refusal to enable an unbound pipe The ioctl function implicitly assumed that the socket was already bound to a valid local socket name, i.e., a Phonet object. If the socket was not bound, two problems would occur: 1 W...

Astra Linux – Vulnerability in unbound

NLnet Labs Unbound, including version 1.16.1, is vulnerable to a new type of “ghost domain names” attack. The vulnerability operates by targeting an Unbound instance. When the cached delegation information is about to expire, Unbound queries for a rogue domain name. The rogue nameserver delays th...

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 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...

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

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 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

Before version 1.9.5, Unbound allowed configuration injection in the createunboundadservers.sh script after a successful man-in-the-middle attack on a cleartext HTTP session. NOTE: The vendor does not consider this a vulnerability of the Unbound software. createunboundadservers.sh is a contribute...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerabilities have been resolved: dccp/tcp: Unhash sk from ehash for tb2 alloc failure after checkestalblished. syzkaller reported a warning 0 in inetcskdestroysock, with no repro. WARNONinetsksk-inetnum && !inetcsksk-icskbindhash; However, syzkaller’s log...

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 – Vulnerabilities in unbound, bind9, and dnsmasq

The “Closest Encloser Proof” aspect of the DNS protocol as described in RFC 5155, when the guidance provided in RFC 9276 is skipped enables remote attackers to cause a denial of service resulting in high CPU usage for SHA-1 calculations through DNSSEC responses during a random subdomain attack,...

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

Unbound versions up to and including 1.24.1 are vulnerable to possible domain hijack attacks. Promiscuous NS RRSets that complement positive DNS replies in the authority section can be used to trick resolvers into updating their delegation information for the zone. Typically, these RRSets are use...

Astra Linux – Vulnerability in unbound

Unbound before version 1.9.5 allows for an integer overflow in the regional allocator through regionalalloc. NOTE: The vendor denies 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 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

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 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

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 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...