Description (CNA)
Stack-based Buffer Overflow in lws_adns_parse_label in warmcat libwebsockets allows, when the LWS_WITH_SYS_ASYNC_DNS flag is enabled during compilation, to overflow the label_stack, when the attacker is able to sniff a DNS request in order to craft a response with a matching id containing a label longer than the maximum.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| warmcat / libwebsocket | affected 4.0 through 4.4.2; affected 4.0 through 4.3.6 |
CWE
CWE-121
References
- https://libwebsockets.org/git/libwebsockets/commit?id=2bb9598562b37c942ba5b04bcde3f7fdf66a9d3a
- https://www.nozominetworks.com/labs/vulnerability-advisories-cve-2025-11678
ADP enrichment
No English description supplied.
No references supplied.