CVE-2022-41556

A resource leak in gw_backend.c in lighttpd 1.4.56 through 1.4.66 could lead to a denial of service (connection-slot exhaustion) after a large amount of anomalous TCP behavior by clients. It is related to RDHUP mishandling in certain HTTP/1.1 chunked situations. Use of mod_fastcgi is, for example, affected. This is fixed in 1.4.67.

Database specific

{
    "cna_assigner": "mitre",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/41xxx/CVE-2022-41556.json"
}

References

Affected packages

Git / github.com/lighttpd/lighttpd1.4

Affected ranges

Type

GIT

Repo

https://github.com/lighttpd/lighttpd1.4

Events

Introduced

b8e011d230c206503f072cce0c176da8a938cf00

Fixed

fc4cdb76479f10b2c0712f386ca5e405581ed0fc

Database specific

Show details

{
    "extracted_events": [
        {
            "cpe": "cpe:2.3:a:lighttpd:lighttpd:*:*:*:*:*:*:*:*",
            "range": [
                {
                    "introduced": "1.4.56"
                },
                {
                    "fixed": "1.4.67"
                }
            ],
            "source": "CPE_RANGE"
        }
    ]
}

Affected versions

lighttpd-1.*

lighttpd-1.4.56

lighttpd-1.4.57

lighttpd-1.4.58

lighttpd-1.4.59

lighttpd-1.4.60

lighttpd-1.4.61

lighttpd-1.4.62

lighttpd-1.4.63

lighttpd-1.4.64

lighttpd-1.4.65

lighttpd-1.4.66

Database specific

source

"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2022-41556.json"