Vulnerabilities (CVE)

Filtered by vendor Thekelleys Subscribe
Filtered by product Dnsmasq
Total 37 CVE
CVE Vendors Products Updated CVSS v2 CVSS v3
CVE-2017-14496 6 Canonical, Debian, Google and 3 more 8 Ubuntu Linux, Debian Linux, Android and 5 more 2025-04-20 7.8 HIGH 7.5 HIGH
Integer underflow in the add_pseudoheader function in dnsmasq before 2.78 , when the --add-mac, --add-cpe-id or --add-subnet option is specified, allows remote attackers to cause a denial of service via a crafted DNS request.
CVE-2017-14493 5 Canonical, Debian, Opensuse and 2 more 7 Ubuntu Linux, Debian Linux, Leap and 4 more 2025-04-20 7.5 HIGH 9.8 CRITICAL
Stack-based buffer overflow in dnsmasq before 2.78 allows remote attackers to cause a denial of service (crash) or execute arbitrary code via a crafted DHCPv6 request.
CVE-2017-14494 5 Canonical, Debian, Novell and 2 more 7 Ubuntu Linux, Debian Linux, Leap and 4 more 2025-04-20 4.3 MEDIUM 5.9 MEDIUM
dnsmasq before 2.78, when configured as a relay, allows remote attackers to obtain sensitive memory information via vectors involving handling DHCPv6 forwarded requests.
CVE-2017-14492 5 Canonical, Debian, Novell and 2 more 7 Ubuntu Linux, Debian Linux, Leap and 4 more 2025-04-20 7.5 HIGH 9.8 CRITICAL
Heap-based buffer overflow in dnsmasq before 2.78 allows remote attackers to cause a denial of service (crash) or execute arbitrary code via a crafted IPv6 router advertisement request.
CVE-2017-14495 5 Canonical, Debian, Novell and 2 more 7 Ubuntu Linux, Debian Linux, Leap and 4 more 2025-04-20 5.0 MEDIUM 7.5 HIGH
Memory leak in dnsmasq before 2.78, when the --add-mac, --add-cpe-id or --add-subnet option is specified, allows remote attackers to cause a denial of service (memory consumption) via vectors involving DNS response creation.
CVE-2017-14491 13 Arista, Arubanetworks, Canonical and 10 more 29 Eos, Arubaos, Ubuntu Linux and 26 more 2025-04-20 7.5 HIGH 9.8 CRITICAL
Heap-based buffer overflow in dnsmasq before 2.78 allows remote attackers to cause a denial of service (crash) or execute arbitrary code via a crafted DNS response.
CVE-2017-13704 6 Canonical, Debian, Fedoraproject and 3 more 8 Ubuntu Linux, Debian Linux, Fedora and 5 more 2025-04-20 5.0 MEDIUM 7.5 HIGH
In dnsmasq before 2.78, if the DNS packet size does not match the expected size, the size parameter in a memset call gets a negative value. As it is an unsigned value, memset ends up writing up to 0xffffffff zero's (0xffffffffffffffff in 64 bit platforms), making dnsmasq crash.
CVE-2015-8899 2 Canonical, Thekelleys 2 Ubuntu Linux, Dnsmasq 2025-04-12 5.0 MEDIUM 7.5 HIGH
Dnsmasq before 2.76 allows remote servers to cause a denial of service (crash) via a reply with an empty DNS address that has an (1) A or (2) AAAA record defined locally.
CVE-2015-3294 2 Oracle, Thekelleys 2 Solaris, Dnsmasq 2025-04-12 6.4 MEDIUM N/A
The tcp_request function in Dnsmasq before 2.73rc4 does not properly handle the return value of the setup_reply function, which allows remote attackers to read process memory and cause a denial of service (out-of-bounds read and crash) via a malformed DNS request.
CVE-2012-3411 2 Redhat, Thekelleys 4 Enterprise Linux Desktop, Enterprise Linux Server, Enterprise Linux Workstation and 1 more 2025-04-11 5.0 MEDIUM N/A
Dnsmasq before 2.63test1, when used with certain libvirt configurations, replies to requests from prohibited interfaces, which allows remote attackers to cause a denial of service (traffic amplification) via a spoofed DNS query.
CVE-2013-0198 1 Thekelleys 1 Dnsmasq 2025-04-11 5.0 MEDIUM N/A
Dnsmasq before 2.66test2, when used with certain libvirt configurations, replies to queries from prohibited interfaces, which allows remote attackers to cause a denial of service (traffic amplification) via spoofed TCP based DNS queries. NOTE: this vulnerability exists because of an incomplete fix for CVE-2012-3411.
CVE-2008-3214 1 Thekelleys 1 Dnsmasq 2025-04-09 7.8 HIGH N/A
dnsmasq 2.25 allows remote attackers to cause a denial of service (daemon crash) by (1) renewing a nonexistent lease or (2) sending a DHCPREQUEST for an IP address that is not in the same network, related to the DHCP NAK response from the daemon.
CVE-2009-2957 1 Thekelleys 1 Dnsmasq 2025-04-09 6.8 MEDIUM N/A
Heap-based buffer overflow in the tftp_request function in tftp.c in dnsmasq before 2.50, when --enable-tftp is used, might allow remote attackers to execute arbitrary code via a long filename in a TFTP packet, as demonstrated by a read (aka RRQ) request.
CVE-2009-2958 1 Thekelleys 1 Dnsmasq 2025-04-09 4.3 MEDIUM N/A
The tftp_request function in tftp.c in dnsmasq before 2.50, when --enable-tftp is used, allows remote attackers to cause a denial of service (NULL pointer dereference and daemon crash) via a TFTP read (aka RRQ) request with a malformed blksize option.
CVE-2005-0877 1 Thekelleys 1 Dnsmasq 2025-04-03 5.0 MEDIUM 7.5 HIGH
Dnsmasq before 2.21 allows remote attackers to poison the DNS cache via answers to queries that were not made by Dnsmasq.
CVE-2023-49441 1 Thekelleys 1 Dnsmasq 2025-03-14 N/A 7.5 HIGH
dnsmasq 2.9 is vulnerable to Integer Overflow via forward_query.
CVE-2023-28450 1 Thekelleys 1 Dnsmasq 2025-02-26 N/A 7.5 HIGH
An issue was discovered in Dnsmasq before 2.90. The default maximum EDNS.0 UDP packet size was set to 4096 but should be 1232 because of DNS Flag Day 2020.
CVE-2023-50387 8 Fedoraproject, Isc, Microsoft and 5 more 13 Fedora, Bind, Windows Server 2008 and 10 more 2024-11-21 N/A 7.5 HIGH
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 records, the protocol specification implies that an algorithm must evaluate all combinations of DNSKEY and RRSIG records.
CVE-2022-0934 2 Redhat, Thekelleys 2 Enterprise Linux, Dnsmasq 2024-11-21 N/A 7.5 HIGH
A single-byte, non-arbitrary write/use-after-free flaw was found in dnsmasq. This flaw allows an attacker who sends a crafted packet processed by dnsmasq, potentially causing a denial of service.
CVE-2021-45957 1 Thekelleys 1 Dnsmasq 2024-11-21 7.5 HIGH 9.8 CRITICAL
Dnsmasq 2.86 has a heap-based buffer overflow in answer_request (called from FuzzAnswerTheRequest and fuzz_rfc1035.c). NOTE: the vendor's position is that CVE-2021-45951 through CVE-2021-45957 "do not represent real vulnerabilities, to the best of our knowledge.