CVE-2022-37797
High
Description
In lighttpd 1.4.65, mod_wstunnel does not initialize a handler function pointer if an invalid HTTP request (websocket handshake) is received. It leads to null pointer dereference which crashes the server. It could be used by an external attacker to cause denial of service condition.
SeverityHigh
CVSS7.5
Exploit probability—
Product
Lighttpd
PublishedSep 12, 2022
First seenSep 12, 2022
How to fix
Vendor advisories
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| lighttpd lighttpd | 1.4.65 | — |
| debian debian_linux | 10.0 | — |
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