UBUNTU-CVE-2022-37797

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Source
https://ubuntu.com/security/CVE-2022-37797
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2022/UBUNTU-CVE-2022-37797.json
JSON Data
https://api.osv.dev/v1/vulns/UBUNTU-CVE-2022-37797
Upstream
Published
2022-09-12T15:15:00Z
Modified
2025-09-08T16:50:21Z
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

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.

References

Affected packages

Ubuntu:Pro:20.04:LTS / lighttpd

Package

Name
lighttpd
Purl
pkg:deb/ubuntu/lighttpd@1.4.55-1ubuntu1.20.04.2?arch=source&distro=esm-apps/focal

Affected ranges

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

Affected versions

1.*

1.4.53-4ubuntu2
1.4.54-2ubuntu1
1.4.55-1ubuntu1
1.4.55-1ubuntu1.20.04.1
1.4.55-1ubuntu1.20.04.2

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "lighttpd",
            "binary_version": "1.4.55-1ubuntu1.20.04.2"
        },
        {
            "binary_name": "lighttpd-dev",
            "binary_version": "1.4.55-1ubuntu1.20.04.2"
        },
        {
            "binary_name": "lighttpd-mod-authn-gssapi",
            "binary_version": "1.4.55-1ubuntu1.20.04.2"
        },
        {
            "binary_name": "lighttpd-mod-authn-pam",
            "binary_version": "1.4.55-1ubuntu1.20.04.2"
        },
        {
            "binary_name": "lighttpd-mod-authn-sasl",
            "binary_version": "1.4.55-1ubuntu1.20.04.2"
        },
        {
            "binary_name": "lighttpd-mod-cml",
            "binary_version": "1.4.55-1ubuntu1.20.04.2"
        },
        {
            "binary_name": "lighttpd-mod-geoip",
            "binary_version": "1.4.55-1ubuntu1.20.04.2"
        },
        {
            "binary_name": "lighttpd-mod-magnet",
            "binary_version": "1.4.55-1ubuntu1.20.04.2"
        },
        {
            "binary_name": "lighttpd-mod-maxminddb",
            "binary_version": "1.4.55-1ubuntu1.20.04.2"
        },
        {
            "binary_name": "lighttpd-mod-trigger-b4-dl",
            "binary_version": "1.4.55-1ubuntu1.20.04.2"
        },
        {
            "binary_name": "lighttpd-mod-vhostdb-dbi",
            "binary_version": "1.4.55-1ubuntu1.20.04.2"
        },
        {
            "binary_name": "lighttpd-mod-vhostdb-pgsql",
            "binary_version": "1.4.55-1ubuntu1.20.04.2"
        },
        {
            "binary_name": "lighttpd-mod-webdav",
            "binary_version": "1.4.55-1ubuntu1.20.04.2"
        },
        {
            "binary_name": "lighttpd-modules-ldap",
            "binary_version": "1.4.55-1ubuntu1.20.04.2"
        },
        {
            "binary_name": "lighttpd-modules-mysql",
            "binary_version": "1.4.55-1ubuntu1.20.04.2"
        }
    ]
}

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

Affected versions

1.*

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

Ecosystem specific 

{
    "binaries": [
        {
            "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",
            "binary_version": "1.4.63-1ubuntu3.1"
        }
    ]
}