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CVE-2020-25681

Опубликовано: 20 янв. 2021
Источник: nvd
CVSS3: 8.1
CVSS2: 8.3
EPSS Средний

Описание

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.

Уязвимые конфигурации

Конфигурация 1
cpe:2.3:a:thekelleys:dnsmasq:*:*:*:*:*:*:*:*
Версия до 2.83 (исключая)
Конфигурация 2

Одно из

cpe:2.3:o:fedoraproject:fedora:32:*:*:*:*:*:*:*
cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:*
Конфигурация 3

Одно из

cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*
cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*

EPSS

Процентиль: 96%
0.24125
Средний

8.1 High

CVSS3

8.3 High

CVSS2

Дефекты

CWE-122

Связанные уязвимости

CVSS3: 8.1
ubuntu
больше 4 лет назад

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.

CVSS3: 8.1
redhat
больше 4 лет назад

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.

CVSS3: 8.1
msrc
больше 4 лет назад

Описание отсутствует

CVSS3: 8.1
debian
больше 4 лет назад

A flaw was found in dnsmasq before version 2.83. A heap-based buffer o ...

github
больше 3 лет назад

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.

EPSS

Процентиль: 96%
0.24125
Средний

8.1 High

CVSS3

8.3 High

CVSS2

Дефекты

CWE-122