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alpinelinuxAlpine Linux Development TeamALPINE:CVE-2024-25581
HistoryMay 14, 2024 - 3:05 p.m.

CVE-2024-25581

2024-05-1415:05:29
Alpine Linux Development Team
security.alpinelinux.org
1
cve-2024-25581
nghttp2
dns
denial of service
dns over https
axfr
ixfr
dnsdist
tcp
dns over tls
unix

7.5 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

0.0004 Low

EPSS

Percentile

9.1%

When incoming DNS over HTTPS support is enabled using the nghttp2 provider, and queries are routed to a tcp-only or DNS over TLS backend, an attacker can trigger an assertion failure in DNSdist by sending a request for a zone transfer (AXFR or IXFR) over DNS over HTTPS, causing the process to stop and thus leading to a Denial of Service. DNS over HTTPS is not enabled by default, and backends are using plain DNS (Do53) by default.

OSVersionArchitecturePackageVersionFilename
Alpineedge-communitynoarchdnsdist< 1.9.4-r0UNKNOWN
Alpine3.20-communitynoarchdnsdist< 1.9.4-r0UNKNOWN

7.5 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

0.0004 Low

EPSS

Percentile

9.1%