CVE-2026-69184

c-ares is an asynchronous resolver library. Prior to 1.34.7, aresdnsnameparse enforces backward DNS compression pointers but does not bound the total pointer hops or assembled name length. A malicious DNS server can send a response containing a long descending pointer chain and many resource...

CVE-2026-69184

c-ares (asynchronous DNS resolver library) prior to 1.34.7 is affected by a CPU-exhaustion denial-of-service in ares_dns_name_parse(). The function enforces backward DNS compression pointers but does not bound total pointer hops or assembled name length, so a malicious DNS server can send a respo...

Security update for c-ares (important)

openSUSE security update: security update for c-ares ------------------------------------------------------------- Announcement ID: openSUSE-SU-2026:21721-1 Rating: important References: bsc1270416 bsc1276290 bsc1276291 Cross-References: CVE-2026-33630 CVE-2026-69184 CVE-2026-69186 CVSS scores:...

[SECURITY] [DLA 4761-1] libnet-dns-perl security update

Debian LTS Advisory DLA-4761-1 [email protected] https://www.debian.org/lts/security/ Guilhem Moulin August 30, 2026 https://wiki.debian.org/LTS Package : libnet-dns-perl Version : 1.29-1+deb11u1 1.36-1+deb12u1 CVE ID : CVE-2026-64194 Debian Bug : 1142503 Steffen Ullrich discovered that...

Debian dla-4761 : libnet-dns-perl - security update

The remote Debian 11 / 12 host has a package installed that is affected by a vulnerability as referenced in the dla-4761 advisory. ------------------------------------------------------------------------- Debian LTS Advisory DLA-4761-1 [email protected]...

PT-2026-80175

Name of the Vulnerable Software and Affected Versions c-ares versions prior to 1.34.8-1.1 Description A CPU-exhaustion denial of service occurs due to unbounded DNS name compression pointer chains. This issue allows an attacker to cause excessive CPU usage by providing specially crafted DNS...

CVE-2026-64194

Net::DNS versions through 1.55 for Perl allow Denial of Service via deep DNS compression pointer chains. Net::DNS::DomainName::decode follows RFC 1035 compression pointers by recursing into itself with no depth limit. It is possible to construct a name which saturates the call stack at least with...

OESA-2026-2488 python-twisted security update

Twisted is an event-based framework for internet applications, supporting Python 2.7 and Python 3.5+. It includes modules for many different purposes, including the following: Security Fixes: A denial of service vulnerability exists in Twisted framework when handling DNS compression pointer chain...

OESA-2026-2368 python-twisted security update

Twisted is an event-based framework for internet applications, supporting Python 2.7 and Python 3.5+. It includes modules for many different purposes, including the following: Security Fixes: A denial of service vulnerability exists in Twisted framework when handling DNS compression pointer chain...

CVE-2026-42304

The CVE-2026-42304 issue affects Twisted (twisted.names) up to version 26.4.0rc2. Root cause: the DNS name decoder in twisted.names.dns.Name.decode lacks a limit on pointer dereferences per DNS message, and the per-question visited state can reset, enabling an attacker to craft TCP DNS packets wi...

GHSA-GRGV-6HW6-V9G4 Twisted has a Denial of Service (DoS) in twisted.names via Crafted DNS Compression Pointer Chains

Details The twisted.names module is vulnerable to a Denial of Service DoS attack via resource exhaustion during DNS name decompression. A remote, unauthenticated attacker can exploit this by sending a crafted TCP DNS packet containing deeply chained compression pointers. This flaw bypasses previo...

Twisted has a Denial of Service (DoS) in twisted.names via Crafted DNS Compression Pointer Chains

Details The twisted.names module is vulnerable to a Denial of Service DoS attack via resource exhaustion during DNS name decompression. A remote, unauthenticated attacker can exploit this by sending a crafted TCP DNS packet containing deeply chained compression pointers. This flaw bypasses previo...