Debian/dnsmasq: high 7.3
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
Action: Upgrade dnsmasq to 2.91-1+deb13u1 or later.
Affected
| introduced | fixed | last affected |
|---|---|---|
| 0 | 2.91-1+deb13u1 | - |
Fixed versions
| 2.91-1+deb13u1 |
Sources
- osv: DEBIAN-CVE-2026-5172#Debian:13/dnsmasq
- https://security-tracker.debian.org/tracker/CVE-2026-5172
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