UBUNTU-CVE-2022-41556

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Source
https://ubuntu.com/security/CVE-2022-41556
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2022/UBUNTU-CVE-2022-41556.json
JSON Data
https://api.osv.dev/v1/vulns/UBUNTU-CVE-2022-41556
Upstream
Downstream
Related
Published
2022-10-06T18:17:00Z
Modified
2025-09-08T16:50:25Z
Severity
  • 7.5 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
  • Ubuntu - medium
Summary
[none]
Details

A resource leak in gwbackend.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 modfastcgi is, for example, affected. This is fixed in 1.4.67.

References

Affected packages

Ubuntu:Pro:14.04:LTS / lighttpd

Package

Name
lighttpd
Purl
pkg:deb/ubuntu/lighttpd@1.4.33-1+nmu2ubuntu2.1+esm1?arch=source&distro=esm-infra-legacy/trusty

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

1.*

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

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "1.4.33-1+nmu2ubuntu2.1+esm1",
            "binary_name": "lighttpd"
        },
        {
            "binary_version": "1.4.33-1+nmu2ubuntu2.1+esm1",
            "binary_name": "lighttpd-dev"
        },
        {
            "binary_version": "1.4.33-1+nmu2ubuntu2.1+esm1",
            "binary_name": "lighttpd-mod-cml"
        },
        {
            "binary_version": "1.4.33-1+nmu2ubuntu2.1+esm1",
            "binary_name": "lighttpd-mod-magnet"
        },
        {
            "binary_version": "1.4.33-1+nmu2ubuntu2.1+esm1",
            "binary_name": "lighttpd-mod-mysql-vhost"
        },
        {
            "binary_version": "1.4.33-1+nmu2ubuntu2.1+esm1",
            "binary_name": "lighttpd-mod-trigger-b4-dl"
        },
        {
            "binary_version": "1.4.33-1+nmu2ubuntu2.1+esm1",
            "binary_name": "lighttpd-mod-webdav"
        }
    ]
}

Ubuntu:22.04:LTS / lighttpd

Package

Name
lighttpd
Purl
pkg:deb/ubuntu/lighttpd@1.4.63-1ubuntu3.1?arch=source&distro=jammy

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
1.4.63-1ubuntu3.1

Affected versions

1.*

1.4.59-1ubuntu2
1.4.59-1ubuntu3
1.4.63-1ubuntu1
1.4.63-1ubuntu2
1.4.63-1ubuntu3

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "1.4.63-1ubuntu3.1",
            "binary_name": "lighttpd"
        },
        {
            "binary_version": "1.4.63-1ubuntu3.1",
            "binary_name": "lighttpd-mod-authn-gssapi"
        },
        {
            "binary_version": "1.4.63-1ubuntu3.1",
            "binary_name": "lighttpd-mod-authn-pam"
        },
        {
            "binary_version": "1.4.63-1ubuntu3.1",
            "binary_name": "lighttpd-mod-authn-sasl"
        },
        {
            "binary_version": "1.4.63-1ubuntu3.1",
            "binary_name": "lighttpd-mod-deflate"
        },
        {
            "binary_version": "1.4.63-1ubuntu3.1",
            "binary_name": "lighttpd-mod-geoip"
        },
        {
            "binary_version": "1.4.63-1ubuntu3.1",
            "binary_name": "lighttpd-mod-maxminddb"
        },
        {
            "binary_version": "1.4.63-1ubuntu3.1",
            "binary_name": "lighttpd-mod-mbedtls"
        },
        {
            "binary_version": "1.4.63-1ubuntu3.1",
            "binary_name": "lighttpd-mod-nss"
        },
        {
            "binary_version": "1.4.63-1ubuntu3.1",
            "binary_name": "lighttpd-mod-openssl"
        },
        {
            "binary_version": "1.4.63-1ubuntu3.1",
            "binary_name": "lighttpd-mod-trigger-b4-dl"
        },
        {
            "binary_version": "1.4.63-1ubuntu3.1",
            "binary_name": "lighttpd-mod-vhostdb-pgsql"
        },
        {
            "binary_version": "1.4.63-1ubuntu3.1",
            "binary_name": "lighttpd-mod-webdav"
        },
        {
            "binary_version": "1.4.63-1ubuntu3.1",
            "binary_name": "lighttpd-mod-wolfssl"
        },
        {
            "binary_version": "1.4.63-1ubuntu3.1",
            "binary_name": "lighttpd-modules-dbi"
        },
        {
            "binary_version": "1.4.63-1ubuntu3.1",
            "binary_name": "lighttpd-modules-ldap"
        },
        {
            "binary_version": "1.4.63-1ubuntu3.1",
            "binary_name": "lighttpd-modules-lua"
        },
        {
            "binary_version": "1.4.63-1ubuntu3.1",
            "binary_name": "lighttpd-modules-mysql"
        }
    ],
    "availability": "No subscription required"
}