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CVE-2026-12969

Опубликовано: 27 июн. 2026
Источник: msrc
CVSS3: 5.3
EPSS Низкий

Описание

Dnsmasq: dnsmasq: out-of-bounds read in find_soa() due to missing extrabytes validation

EPSS

Процентиль: 15%
0.00239
Низкий

5.3 Medium

CVSS3

Связанные уязвимости

CVSS3: 5.3
ubuntu
около 2 месяцев назад

An out-of-bounds read vulnerability exists in dnsmasq's find_soa() function in src/rfc1035.c. When parsing NS section records, extract_name() is called with extrabytes=0, failing to validate that 10 additional bytes exist for fixed-length DNS record fields. A remote attacker controlling a DNS zone can exploit this via a crafted NXDOMAIN response to cause a 10-byte heap out-of-bounds read, potentially accessing stale data from prior transactions.

CVSS3: 5.3
redhat
3 месяца назад

An out-of-bounds read vulnerability exists in dnsmasq's find_soa() function in src/rfc1035.c. When parsing NS section records, extract_name() is called with extrabytes=0, failing to validate that 10 additional bytes exist for fixed-length DNS record fields. A remote attacker controlling a DNS zone can exploit this via a crafted NXDOMAIN response to cause a 10-byte heap out-of-bounds read, potentially accessing stale data from prior transactions.

CVSS3: 5.3
nvd
около 2 месяцев назад

An out-of-bounds read vulnerability exists in dnsmasq's find_soa() function in src/rfc1035.c. When parsing NS section records, extract_name() is called with extrabytes=0, failing to validate that 10 additional bytes exist for fixed-length DNS record fields. A remote attacker controlling a DNS zone can exploit this via a crafted NXDOMAIN response to cause a 10-byte heap out-of-bounds read, potentially accessing stale data from prior transactions.

CVSS3: 5.3
debian
около 2 месяцев назад

An out-of-bounds read vulnerability exists in dnsmasq's find_soa() fun ...

CVSS3: 5.3
github
около 2 месяцев назад

An out-of-bounds read vulnerability exists in dnsmasq's find_soa() function in src/rfc1035.c. When parsing NS section records, extract_name() is called with extrabytes=0, failing to validate that 10 additional bytes exist for fixed-length DNS record fields. A remote attacker controlling a DNS zone can exploit this via a crafted NXDOMAIN response to cause a 10-byte heap out-of-bounds read, potentially accessing stale data from prior transactions.

EPSS

Процентиль: 15%
0.00239
Низкий

5.3 Medium

CVSS3