CVE-2022-41556

2022-10-0600:00:00

ubuntu.com

7.5 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

5 Medium

CVSS2

Access Vector

NETWORK

Access Complexity

LOW

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

AV:N/AC:L/Au:N/C:N/I:N/A:P

0.002 Low

EPSS

Percentile

57.4%

JSON

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.

OSVersionArchitecturePackageVersionFilename
ubuntu22.04noarchlighttpd< 1.4.63-1ubuntu3.1UNKNOWN
ubuntu22.10noarchlighttpd< 1.4.65-2ubuntu1.1UNKNOWN
ubuntu14.04noarchlighttpd< anyUNKNOWN