ALPINE-CVE-2026-12244
ALPINE-CVE-2026-12244
This page contains facts from public vulnerability sources. Check the original advisory before updating.
If NSD is configured as secondary for a zone, the primary of that zone can crash NSD with an AXFR containing a DNS message with a special crafted SVCB RR with an rdata size of 65512, that let's an (uint16_t) variable that is used to allocate space needed for the RR wrap (because total size > 65535), causing a heap overflow. The attacker can perform a controlled (RCE class) head write of up to 65509 bytes
CVSS 8.8 · High · Fix available
- Published
- Updated
Stack: system
Affected products and versions
nsd Alpine:v3.24
- Affected ranges
- ECOSYSTEM: ≥ 4.14.0, < 4.14.3-r0
Update to 4.14.3-r0