thekelleys CVE Vulnerabilities & Metrics

Focus on thekelleys vulnerabilities and metrics.

Last updated: 08 Mar 2025, 23:25 UTC

About thekelleys Security Exposure

This page consolidates all known Common Vulnerabilities and Exposures (CVEs) associated with thekelleys. We track both calendar-based metrics (using fixed periods) and rolling metrics (using gliding windows) to give you a comprehensive view of security trends and risk evolution. Use these insights to assess risk and plan your patching strategy.

For a broader perspective on cybersecurity threats, explore the comprehensive list of CVEs by vendor and product. Stay updated on critical vulnerabilities affecting major software and hardware providers.

Global CVE Overview

Total thekelleys CVEs: 31
Earliest CVE date: 02 May 2005, 04:00 UTC
Latest CVE date: 06 Jun 2024, 22:15 UTC

Latest CVE reference: CVE-2023-49441

Rolling Stats

30-day Count (Rolling): 0
365-day Count (Rolling): 1

Calendar-based Variation

Calendar-based Variation compares a fixed calendar period (e.g., this month versus the same month last year), while Rolling Growth Rate uses a continuous window (e.g., last 30 days versus the previous 30 days) to capture trends independent of calendar boundaries.

Variations & Growth

Month Variation (Calendar): 0%
Year Variation (Calendar): -50.0%

Month Growth Rate (30-day Rolling): 0.0%
Year Growth Rate (365-day Rolling): -50.0%

Monthly CVE Trends (current vs previous Year)

Annual CVE Trends (Last 20 Years)

Critical thekelleys CVEs (CVSS ≥ 9) Over 20 Years

CVSS Stats

Average CVSS: 5.53

Max CVSS: 8.3

Critical CVEs (≥9): 0

CVSS Range vs. Count

Range Count
0.0-3.9 4
4.0-6.9 17
7.0-8.9 16
9.0-10.0 0

CVSS Distribution Chart

Top 5 Highest CVSS thekelleys CVEs

These are the five CVEs with the highest CVSS scores for thekelleys, sorted by severity first and recency.

All CVEs for thekelleys

CVE-2023-49441 thekelleys vulnerability CVSS: 0 06 Jun 2024, 22:15 UTC

dnsmasq 2.9 is vulnerable to Integer Overflow via forward_query.

CVE-2023-50387 thekelleys vulnerability CVSS: 0 14 Feb 2024, 16:15 UTC

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-2023-28450 thekelleys vulnerability CVSS: 0 15 Mar 2023, 21:15 UTC

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-2022-0934 thekelleys vulnerability CVSS: 0 29 Aug 2022, 15:15 UTC

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 thekelleys vulnerability CVSS: 7.5 01 Jan 2022, 00:15 UTC

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.

CVE-2021-45956 thekelleys vulnerability CVSS: 7.5 01 Jan 2022, 00:15 UTC

Dnsmasq 2.86 has a heap-based buffer overflow in print_mac (called from log_packet and dhcp_reply). 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.

CVE-2021-45955 thekelleys vulnerability CVSS: 7.5 01 Jan 2022, 00:15 UTC

Dnsmasq 2.86 has a heap-based buffer overflow in resize_packet (called from FuzzResizePacket and fuzz_rfc1035.c) because of the lack of a proper bounds check upon pseudo header re-insertion. 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." However, a contributor states that a security patch (mentioned in 016162.html) is needed

CVE-2021-45954 thekelleys vulnerability CVSS: 7.5 01 Jan 2022, 00:15 UTC

Dnsmasq 2.86 has a heap-based buffer overflow in extract_name (called from answer_auth and FuzzAuth). 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.

CVE-2021-45953 thekelleys vulnerability CVSS: 7.5 01 Jan 2022, 00:15 UTC

Dnsmasq 2.86 has a heap-based buffer overflow in extract_name (called from hash_questions and fuzz_util.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.

CVE-2021-45952 thekelleys vulnerability CVSS: 7.5 01 Jan 2022, 00:15 UTC

Dnsmasq 2.86 has a heap-based buffer overflow in dhcp_reply (called from dhcp_packet and FuzzDhcp). 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.

CVE-2021-45951 thekelleys vulnerability CVSS: 7.5 01 Jan 2022, 00:15 UTC

Dnsmasq 2.86 has a heap-based buffer overflow in check_bad_address (called from check_for_bogus_wildcard and FuzzCheckForBogusWildcard). 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.

CVE-2021-3448 thekelleys vulnerability CVSS: 4.3 08 Apr 2021, 23:15 UTC

A flaw was found in dnsmasq in versions before 2.85. When configured to use a specific server for a given network interface, dnsmasq uses a fixed port while forwarding queries. An attacker on the network, able to find the outgoing port used by dnsmasq, only needs to guess the random transmission ID to forge a reply and get it accepted by dnsmasq. This flaw makes a DNS Cache Poisoning attack much easier. The highest threat from this vulnerability is to data integrity.

CVE-2020-25687 thekelleys vulnerability CVSS: 7.1 20 Jan 2021, 17:15 UTC

A flaw was found in dnsmasq before version 2.83. A heap-based buffer overflow was discovered in dnsmasq when DNSSEC is enabled and before it validates the received DNS entries. This flaw allows a remote attacker, who can create valid DNS replies, to cause an overflow in a heap-allocated memory. This flaw is caused by the lack of length checks in rfc1035.c:extract_name(), which could be abused to make the code execute memcpy() with a negative size in sort_rrset() and cause a crash in dnsmasq, resulting in a denial of service. The highest threat from this vulnerability is to system availability.

CVE-2020-25686 thekelleys vulnerability CVSS: 4.3 20 Jan 2021, 17:15 UTC

A flaw was found in dnsmasq before version 2.83. When receiving a query, dnsmasq does not check for an existing pending request for the same name and forwards a new request. By default, a maximum of 150 pending queries can be sent to upstream servers, so there can be at most 150 queries for the same name. This flaw allows an off-path attacker on the network to substantially reduce the number of attempts that it would have to perform to forge a reply and have it accepted by dnsmasq. This issue is mentioned in the "Birthday Attacks" section of RFC5452. If chained with CVE-2020-25684, the attack complexity of a successful attack is reduced. The highest threat from this vulnerability is to data integrity.

CVE-2020-25682 thekelleys vulnerability CVSS: 8.3 20 Jan 2021, 17:15 UTC

A flaw was found in dnsmasq before 2.83. A buffer overflow vulnerability was discovered in the way dnsmasq extract names from DNS packets before validating them with DNSSEC data. An attacker on the network, who can create valid DNS replies, could use this flaw to cause an overflow with arbitrary data in a heap-allocated memory, possibly executing code on the machine. The flaw is in the rfc1035.c:extract_name() function, which writes data to the memory pointed by name assuming MAXDNAME*2 bytes are available in the buffer. However, in some code execution paths, it is possible extract_name() gets passed an offset from the base buffer, thus reducing, in practice, the number of available bytes that can be written in the buffer. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability.

CVE-2020-25681 thekelleys vulnerability CVSS: 8.3 20 Jan 2021, 17:15 UTC

A flaw was found in dnsmasq before version 2.83. A heap-based buffer overflow was discovered in the way RRSets are sorted before validating with DNSSEC data. An attacker on the network, who can forge DNS replies such as that they are accepted as valid, could use this flaw to cause a buffer overflow with arbitrary data in a heap memory segment, possibly executing code on the machine. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability.

CVE-2020-25685 thekelleys vulnerability CVSS: 4.3 20 Jan 2021, 16:15 UTC

A flaw was found in dnsmasq before version 2.83. When getting a reply from a forwarded query, dnsmasq checks in forward.c:reply_query(), which is the forwarded query that matches the reply, by only using a weak hash of the query name. Due to the weak hash (CRC32 when dnsmasq is compiled without DNSSEC, SHA-1 when it is) this flaw allows an off-path attacker to find several different domains all having the same hash, substantially reducing the number of attempts they would have to perform to forge a reply and get it accepted by dnsmasq. This is in contrast with RFC5452, which specifies that the query name is one of the attributes of a query that must be used to match a reply. This flaw could be abused to perform a DNS Cache Poisoning attack. If chained with CVE-2020-25684 the attack complexity of a successful attack is reduced. The highest threat from this vulnerability is to data integrity.

CVE-2020-25684 thekelleys vulnerability CVSS: 4.3 20 Jan 2021, 16:15 UTC

A flaw was found in dnsmasq before version 2.83. When getting a reply from a forwarded query, dnsmasq checks in the forward.c:reply_query() if the reply destination address/port is used by the pending forwarded queries. However, it does not use the address/port to retrieve the exact forwarded query, substantially reducing the number of attempts an attacker on the network would have to perform to forge a reply and get it accepted by dnsmasq. This issue contrasts with RFC5452, which specifies a query's attributes that all must be used to match a reply. This flaw allows an attacker to perform a DNS Cache Poisoning attack. If chained with CVE-2020-25685 or CVE-2020-25686, the attack complexity of a successful attack is reduced. The highest threat from this vulnerability is to data integrity.

CVE-2020-25683 thekelleys vulnerability CVSS: 7.1 20 Jan 2021, 16:15 UTC

A flaw was found in dnsmasq before version 2.83. A heap-based buffer overflow was discovered in dnsmasq when DNSSEC is enabled and before it validates the received DNS entries. A remote attacker, who can create valid DNS replies, could use this flaw to cause an overflow in a heap-allocated memory. This flaw is caused by the lack of length checks in rfc1035.c:extract_name(), which could be abused to make the code execute memcpy() with a negative size in get_rdata() and cause a crash in dnsmasq, resulting in a denial of service. The highest threat from this vulnerability is to system availability.

CVE-2019-14834 thekelleys vulnerability CVSS: 4.3 07 Jan 2020, 17:15 UTC

A vulnerability was found in dnsmasq before version 2.81, where the memory leak allows remote attackers to cause a denial of service (memory consumption) via vectors involving DHCP response creation.

CVE-2019-14513 thekelleys vulnerability CVSS: 5.0 01 Aug 2019, 21:15 UTC

Improper bounds checking in Dnsmasq before 2.76 allows an attacker controlled DNS server to send large DNS packets that result in a read operation beyond the buffer allocated for the packet, a different vulnerability than CVE-2017-14491.

CVE-2017-15107 thekelleys vulnerability CVSS: 5.0 23 Jan 2018, 16:29 UTC

A vulnerability was found in the implementation of DNSSEC in Dnsmasq up to and including 2.78. Wildcard synthesized NSEC records could be improperly interpreted to prove the non-existence of hostnames that actually exist.

CVE-2017-14491 thekelleys vulnerability CVSS: 7.5 04 Oct 2017, 01:29 UTC

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-2017-14496 thekelleys vulnerability CVSS: 7.8 03 Oct 2017, 01:29 UTC

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-2017-14495 thekelleys vulnerability CVSS: 5.0 03 Oct 2017, 01:29 UTC

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-2017-14494 thekelleys vulnerability CVSS: 4.3 03 Oct 2017, 01:29 UTC

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-2017-14493 thekelleys vulnerability CVSS: 7.5 03 Oct 2017, 01:29 UTC

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-2017-14492 thekelleys vulnerability CVSS: 7.5 03 Oct 2017, 01:29 UTC

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-2017-13704 thekelleys vulnerability CVSS: 5.0 03 Oct 2017, 01:29 UTC

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 thekelleys vulnerability CVSS: 5.0 30 Jun 2016, 17:59 UTC

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 thekelleys vulnerability CVSS: 6.4 08 May 2015, 14:59 UTC

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-2013-0198 thekelleys vulnerability CVSS: 5.0 05 Mar 2013, 21:38 UTC

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-2012-3411 thekelleys vulnerability CVSS: 5.0 05 Mar 2013, 21:38 UTC

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-2009-2958 thekelleys vulnerability CVSS: 4.3 02 Sep 2009, 15:30 UTC

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-2009-2957 thekelleys vulnerability CVSS: 6.8 02 Sep 2009, 15:30 UTC

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-2008-3214 thekelleys vulnerability CVSS: 7.8 18 Jul 2008, 16:41 UTC

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-2005-0877 thekelleys vulnerability CVSS: 5.0 02 May 2005, 04:00 UTC

Dnsmasq before 2.21 allows remote attackers to poison the DNS cache via answers to queries that were not made by Dnsmasq.