7.5
HIGH
CVE-2022-37797
"Lighttpd mod_wstunnel Null Pointer Dereference Vulnerability"
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.

INFO

Published Date :

Sept. 12, 2022, 3:15 p.m.

Last Modified :

Nov. 21, 2024, 7:15 a.m.

Remotely Exploitable :

Yes !

Impact Score :

3.6

Exploitability Score :

3.9
Affected Products

The following products are affected by CVE-2022-37797 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Debian debian_linux
1 Lighttpd lighttpd
References to Advisories, Solutions, and Tools

Here, you will find a curated list of external links that provide in-depth information, practical solutions, and valuable tools related to CVE-2022-37797.

URL Resource
https://lists.debian.org/debian-lts-announce/2022/10/msg00002.html Mailing List Third Party Advisory
https://redmine.lighttpd.net/issues/3165 Exploit Issue Tracking Third Party Advisory
https://security.gentoo.org/glsa/202210-12 Third Party Advisory
https://www.debian.org/security/2022/dsa-5243 Mailing List Third Party Advisory
https://lists.debian.org/debian-lts-announce/2022/10/msg00002.html Mailing List Third Party Advisory
https://redmine.lighttpd.net/issues/3165 Exploit Issue Tracking Third Party Advisory
https://security.gentoo.org/glsa/202210-12 Third Party Advisory
https://www.debian.org/security/2022/dsa-5243 Mailing List Third Party Advisory

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2022-37797 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2022-37797 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • CVE Modified by af854a3a-2127-422b-91ae-364da2661108

    Nov. 21, 2024

    Action Type Old Value New Value
    Added Reference https://lists.debian.org/debian-lts-announce/2022/10/msg00002.html
    Added Reference https://redmine.lighttpd.net/issues/3165
    Added Reference https://security.gentoo.org/glsa/202210-12
    Added Reference https://www.debian.org/security/2022/dsa-5243
  • CVE Modified by [email protected]

    May. 14, 2024

    Action Type Old Value New Value
  • Modified Analysis by [email protected]

    Dec. 03, 2022

    Action Type Old Value New Value
    Changed Reference Type https://security.gentoo.org/glsa/202210-12 No Types Assigned https://security.gentoo.org/glsa/202210-12 Third Party Advisory
  • CVE Modified by [email protected]

    Oct. 31, 2022

    Action Type Old Value New Value
    Added Reference https://security.gentoo.org/glsa/202210-12 [No Types Assigned]
  • Modified Analysis by [email protected]

    Oct. 06, 2022

    Action Type Old Value New Value
    Changed Reference Type https://lists.debian.org/debian-lts-announce/2022/10/msg00002.html No Types Assigned https://lists.debian.org/debian-lts-announce/2022/10/msg00002.html Mailing List, Third Party Advisory
  • CVE Modified by [email protected]

    Oct. 03, 2022

    Action Type Old Value New Value
    Added Reference https://lists.debian.org/debian-lts-announce/2022/10/msg00002.html [No Types Assigned]
  • Modified Analysis by [email protected]

    Oct. 01, 2022

    Action Type Old Value New Value
    Changed Reference Type https://www.debian.org/security/2022/dsa-5243 No Types Assigned https://www.debian.org/security/2022/dsa-5243 Mailing List, Third Party Advisory
    Added CPE Configuration OR *cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*
  • CVE Modified by [email protected]

    Sep. 29, 2022

    Action Type Old Value New Value
    Added Reference https://www.debian.org/security/2022/dsa-5243 [No Types Assigned]
  • Initial Analysis by [email protected]

    Sep. 15, 2022

    Action Type Old Value New Value
    Added CVSS V3.1 NIST AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
    Changed Reference Type https://redmine.lighttpd.net/issues/3165 No Types Assigned https://redmine.lighttpd.net/issues/3165 Exploit, Issue Tracking, Third Party Advisory
    Added CWE NIST CWE-476
    Added CPE Configuration OR *cpe:2.3:a:lighttpd:lighttpd:1.4.65:*:*:*:*:*:*:*
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2022-37797 is associated with the following CWEs:

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2022-37797 weaknesses.

Exploit Prediction

EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.

0.27 }} 0.07%

score

0.67248

percentile

CVSS31 - Vulnerability Scoring System
Attack Vector
Attack Complexity
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