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CVE-2022-41556

CVE-2022-41556

This page contains facts from public vulnerability sources. Check the original advisory before updating.

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.

CVSS 7.5 · High · EPSS 3.8% · Fix available

Published
Updated

Stack: system

Affected products and versions

  • n/a

    Versions
    • n/a: Affected

    No fix published

  • lighttpd Debian:12

    Affected ranges
    • ECOSYSTEM: < 1.4.67-1

    Update to 1.4.67-1

  • lighttpd Debian:13

    Affected ranges
    • ECOSYSTEM: < 1.4.67-1

    Update to 1.4.67-1

  • lighttpd Debian:14

    Affected ranges
    • ECOSYSTEM: < 1.4.67-1

    Update to 1.4.67-1

  • lighttpd Ubuntu:Pro:14.04:LTS

    Versions
    • 1.4.31-3ubuntu3
    • 1.4.33-1ubuntu1
    • 1.4.33-1+nmu2ubuntu1
    • 1.4.33-1+nmu2ubuntu2
    • 1.4.33-1+nmu2ubuntu2.1
    • 1.4.33-1+nmu2ubuntu2.1+esm1
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • lighttpd Ubuntu:22.04:LTS

    Versions
    • 1.4.59-1ubuntu2
    • 1.4.59-1ubuntu3
    • 1.4.63-1ubuntu1
    • 1.4.63-1ubuntu2
    • 1.4.63-1ubuntu3
    Affected ranges
    • ECOSYSTEM: < 1.4.63-1ubuntu3.1

    Update to 1.4.63-1ubuntu3.1

Original sources

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