Описание
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
A heap-based out-of-bounds WRITE flaw was found in dnsmasq. A remote attacker who can trigger a packet resize can use this flaw to write up to 50 bytes to the heap via a memmove call.
Отчет
Red Hat Product Security does not consider this to be a vulnerability.
Затронутые пакеты
| Платформа | Пакет | Состояние | Рекомендация | Релиз |
|---|---|---|---|---|
| Red Hat Enterprise Linux 6 | dnsmasq | Not affected | ||
| Red Hat Enterprise Linux 7 | dnsmasq | Not affected | ||
| Red Hat Enterprise Linux 8 | dnsmasq | Not affected | ||
| Red Hat Enterprise Linux 9 | dnsmasq | Not affected | ||
| Red Hat OpenStack Platform 13 (Queens) | dnsmasq | Not affected |
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Дополнительная информация
EPSS
0 Low
CVSS3
Связанные уязвимости
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
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
Dnsmasq 2.86 has a heap-based buffer overflow in resize_packet (called ...
Dnsmasq 2.86 has a heap-based buffer overflow in resize_packet (called from FuzzResizePacket and fuzz_rfc1035.c).
EPSS
0 Low
CVSS3