CVE-2024-26134 CBOR2 decoder has potential buffer overflow

cbor2 provides encoding and decoding for the Concise Binary Object Representation CBOR RFC 8949 serialization format. Starting in version 5.5.1 and prior to version 5.6.2, an attacker can crash a service using cbor2 to parse a CBOR binary by sending a long enough object. Version 5.6.2 contains a...

Fedora 39 : dnsmasq (2024-e24211eff0)

The remote Fedora 39 host has a package installed that is affected by multiple vulnerabilities as referenced in the FEDORA-2024-e24211eff0 advisory. https://lists.thekelleys.org.uk/pipermail/dnsmasq-discuss/2024q1/017430.html Tenable has extracted the preceding description block directly from the...

Debian dsa-5626 : pdns-recursor - security update

The remote Debian 12 host has a package installed that is affected by multiple vulnerabilities as referenced in the dsa-5626 advisory. -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA512 - ------------------------------------------------------------------------- Debian Security Advisory DSA-5626-1...

Assertion Failure

bind9 is vulnerable to Assertion Failure. The vulnerability is due to assertion failure when the resolver receives a PTR Pointer Record query for an RFC 1918 address a private IP address as defined by the Internet Assigned Numbers Authority in nxdomain-redirect ; configuration. which leads to a...

FreeBSD : powerdns-recursor -- Multiple Vulnerabilities (e15ba624-cca8-11ee-84ca-b42e991fc52e)

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 e15ba624-cca8-11ee-84ca-b42e991fc52e advisory. - Certain DNSSEC aspects of the DNS protocol in RFC 4033, 4034, 4035, 6840, and related RFCs...

Updated bind packages fix security vulnerabilities

The updated packages fix security vulnerabilities: Parsing large DNS messages may cause excessive CPU load. CVE-2023-4408 Querying RFC 1918 reverse zones may cause an assertion failure when "nxdomain-redirect" is enabled. CVE-2023-5517 Enabling both DNS64 and serve-stale may cause an assertion...

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...

Code injection

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...

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...

CVE-2023-50868

CVE-2023-50868 is a DNSSEC-related denial of service issue (NSEC3 Closest Encloser proof) that can cause CPU exhaustion. The connected documents confirm impact on DNS implementations such as Unbound and BIND/BIND9 and describe the root cause as processors performing thousands of hash iterations f...

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...

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...

powerdns-recursor -- Multiple Vulnerabilities

[email protected] reports: 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"...

CVE-2023-50387

CVE-2023-50387 (KeyTrap) affects DNSSEC processing in DNS resolvers. Multiple advisories note excessive CPU/DoS risk when validating DNSKEY/RRSIG in zones with many records. Affected products include Bind (bind9) and Unbound across Linux distributions (e.g., AL2, AlmaLinux) with patches/released ...

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...

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...

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...

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...

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...

CVE-2023-5517

A flaw in query-handling code can cause named to exit prematurely with an assertion failure when: - nxdomain-redirect ; 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 versio...