ALPINE-CVE-2026-5172

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Source
https://security.alpinelinux.org/vuln/CVE-2026-5172
Import Source
https://storage.googleapis.com/osv-test-cve-osv-conversion/alpine/ALPINE-CVE-2026-5172.json
JSON Data
https://api.test.osv.dev/v1/vulns/ALPINE-CVE-2026-5172
Upstream
Published
2026-05-11T18:16:41Z
Modified
2026-08-27T22:17:57Z
Severity
  • 7.3 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L CVSS Calculator
Summary
[none]
Details

A buffer overflow in dnsmasq’s extract_addresses() function allows an attacker to trigger a heap out-of-bounds read and crash by exploiting a malformed DNS response, enabling extract_name() to advance the pointer past the record’s end.

References

Affected packages

Alpine:v3.22 / dnsmasq

Package

Name
dnsmasq
Purl
pkg:apk/alpine/dnsmasq?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
2.91-r1

Database specific

source 
"https://storage.googleapis.com/osv-test-cve-osv-conversion/alpine/ALPINE-CVE-2026-5172.json"

Alpine:v3.23 / dnsmasq

Package

Name
dnsmasq
Purl
pkg:apk/alpine/dnsmasq?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
2.91-r1

Database specific

source 
"https://storage.googleapis.com/osv-test-cve-osv-conversion/alpine/ALPINE-CVE-2026-5172.json"

Alpine:v3.24 / dnsmasq

Package

Name
dnsmasq
Purl
pkg:apk/alpine/dnsmasq?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
2.92_p2-r0

Database specific

source 
"https://storage.googleapis.com/osv-test-cve-osv-conversion/alpine/ALPINE-CVE-2026-5172.json"