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CVE-2022-41556

nvd nist
Published: Oct 6, 2022Modified: Nov 21, 2024

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7.5
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Exploitability: 3.9 / Impact: 3.6
Source: NVD

Description

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.

Affected (2)

Lighttpd
1 product
Lighttpd
Fedoraproject
1 product
Fedora
Configuration A
1 vulnerable
Vulnerable SoftwareAffected Versions
Lighttpd
From 1.4.56 to 1.4.67
Configuration B
1 vulnerable
Vulnerable SoftwareAffected Versions
Fedora
Version 35

Related CWEs

CWE-401
Missing Release of Memory after Effective Lifetime
The product does not sufficiently track and release allocated memory after it has been used, which slowly consumes remaining memory.

References (10)

Source: cve@mitre.org
PatchThird Party Advisory
Source: cve@mitre.org
Third Party Advisory
Source: cve@mitre.org
ExploitIssue TrackingThird Party Advisory
Source: cve@mitre.org
Source: cve@mitre.org
Third Party Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
PatchThird Party Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
Third Party Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
ExploitIssue TrackingThird Party Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
Source: af854a3a-2127-422b-91ae-364da2661108
Third Party Advisory

Timeline

No history available yet.