Debian Dnsmasq vulnerabilities

CVE-2017-14492 [CRITICAL] CVE-2017-14492: dnsmasq - Heap-based buffer overflow in dnsmasq before 2.78 allows remote attackers to cau... 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. Scope: local bookworm: resolved (fixed in 2.78-1) bullseye: resolved (fixed in 2.78-1) forky: resolved (fixed in 2.78-1) sid: resolved (fixed in 2.78-1) trixie: resolved (fixed i

CVE-2017-14491 [CRITICAL] CVE-2017-14491: dnsmasq - Heap-based buffer overflow in dnsmasq before 2.78 allows remote attackers to cau... 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. Scope: local bookworm: resolved (fixed in 2.78-1) bullseye: resolved (fixed in 2.78-1) forky: resolved (fixed in 2.78-1) sid: resolved (fixed in 2.78-1) trixie: resolved (fixed in 2.78-1)

CVE-2017-14493 [CRITICAL] CVE-2017-14493: dnsmasq - Stack-based buffer overflow in dnsmasq before 2.78 allows remote attackers to ca... 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. Scope: local bookworm: resolved (fixed in 2.78-1) bullseye: resolved (fixed in 2.78-1) forky: resolved (fixed in 2.78-1) sid: resolved (fixed in 2.78-1) trixie: resolved (fixed in 2.78-1)

CVE-2008-1447 [MEDIUM] CVE-2008-1447: adns - The DNS protocol, as implemented in (1) BIND 8 and 9 before 9.5.0-P1, 9.4.2-P1, ... The DNS protocol, as implemented in (1) BIND 8 and 9 before 9.5.0-P1, 9.4.2-P1, and 9.3.5-P1; (2) Microsoft DNS in Windows 2000 SP4, XP SP2 and SP3, and Server 2003 SP1 and SP2; and other implementations allow remote attackers to spoof DNS traffic via a birthday attack that uses in-bailiwick referrals to conduct cache poisoning against recursive resolvers, related to i

CVE-2017-14495 [HIGH] CVE-2017-14495: dnsmasq - Memory leak in dnsmasq before 2.78, when the --add-mac, --add-cpe-id or --add-su... 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. Scope: local bookworm: resolved (fixed in 2.78-1) bullseye: resolved (fixed in 2.78-1) forky: resolved (fixed in 2.78-1) sid: resolved (fixed i

CVE-2017-14496 [HIGH] CVE-2017-14496: dnsmasq - Integer underflow in the add_pseudoheader function in dnsmasq before 2.78 , when... 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. Scope: local bookworm: resolved (fixed in 2.78-1) bullseye: resolved (fixed in 2.78-1) forky: resolved (fixed in 2.78-1) sid: resolved (fixed

CVE-2017-14494 [MEDIUM] CVE-2017-14494: dnsmasq - dnsmasq before 2.78, when configured as a relay, allows remote attackers to obta... dnsmasq before 2.78, when configured as a relay, allows remote attackers to obtain sensitive memory information via vectors involving handling DHCPv6 forwarded requests. Scope: local bookworm: resolved (fixed in 2.78-1) bullseye: resolved (fixed in 2.78-1) forky: resolved (fixed in 2.78-1) sid: resolved (fixed in 2.78-1) trixie: resolved (fixed in 2.78-1)

CVE-2020-25681 [HIGH] CVE-2020-25681: dnsmasq - A flaw was found in dnsmasq before version 2.83. A heap-based buffer overflow wa... 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 cod

CVE-2020-25682 [HIGH] CVE-2020-25682: dnsmasq - A flaw was found in dnsmasq before 2.83. A buffer overflow vulnerability was dis... 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

CVE-2023-50387 [HIGH] CVE-2023-50387: bind9 - Certain DNSSEC aspects of the DNS protocol (in RFC 4033, 4034, 4035, 6840, and r... 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 eval

CVE-2009-2957 [MEDIUM] CVE-2009-2957: dnsmasq - Heap-based buffer overflow in the tftp_request function in tftp.c in dnsmasq bef... 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. Scope: local bookworm: resolved (fixed in 2.50-1) bullseye: resolved (fixed in 2.50-1) forky: resolved (fixed in

CVE-2023-50868 [HIGH] CVE-2023-50868: bind9 - The Closest Encloser Proof aspect of the DNS protocol (in RFC 5155 when RFC 9276... 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 implies that an algorithm must perform thousands of iterations of a hash

CVE-2017-13704 [HIGH] CVE-2017-13704: dnsmasq - In dnsmasq before 2.78, if the DNS packet size does not match the expected size,... 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. Scope: local bookworm: resolved (fixed in 2.78-1) bullseye: resolved (fixed in 2.78-1) fo

CVE-2020-25687 [MEDIUM] CVE-2020-25687: dnsmasq - A flaw was found in dnsmasq before version 2.83. A heap-based buffer overflow wa... 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_

CVE-2020-25683 [MEDIUM] CVE-2020-25683: dnsmasq - A flaw was found in dnsmasq before version 2.83. A heap-based buffer overflow wa... 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:extra

CVE-2009-2958 [MEDIUM] CVE-2009-2958: dnsmasq - The tftp_request function in tftp.c in dnsmasq before 2.50, when --enable-tftp i... 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. Scope: local bookworm: resolved (fixed in 2.50-1) bullseye: resolved (fixed in 2.50-1) forky: resolved (fixed in 2.5

CVE-2022-0934 [HIGH] CVE-2022-0934: dnsmasq - A single-byte, non-arbitrary write/use-after-free flaw was found in dnsmasq. Thi... 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. Scope: local bookworm: resolved (fixed in 2.87-1) bullseye: resolved (fixed in 2.85-1+deb11u1) forky: resolved (fixed in 2.87-1) sid: resolved (fixed in 2.87-1) trixie: resol

CVE-2019-14513 [CRITICAL] CVE-2019-14513: dnsmasq - Improper bounds checking in Dnsmasq before 2.76 allows an attacker controlled DN... 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. Scope: local bookworm: resolved (fixed in 2.76-1) bullseye: resolved (fixed in 2.76-1) forky: resolved (fixed in 2.76-1) sid:

CVE-2017-15107 [HIGH] CVE-2017-15107: dnsmasq - A vulnerability was found in the implementation of DNSSEC in Dnsmasq up to and i... 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. Scope: local bookworm: resolved (fixed in 2.79-1) bullseye: resolved (fixed in 2.79-1) forky: resolved (fixed in 2.79-1) sid: resolved (fixed in 2

CVE-2023-49441 [HIGH] CVE-2023-49441: dnsmasq - dnsmasq 2.9 is vulnerable to Integer Overflow via forward_query. dnsmasq 2.9 is vulnerable to Integer Overflow via forward_query. Scope: local bookworm: resolved (fixed in 2.90-1) bullseye: open forky: resolved (fixed in 2.90-1) sid: resolved (fixed in 2.90-1) trixie: resolved (fixed in 2.90-1)