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CVE-2022-30780

Published: 11 June 2022

Lighttpd 1.4.56 through 1.4.58 allows a remote attacker to cause a denial of service (CPU consumption from stuck connections) because connection_read_header_more in connections.c has a typo that disrupts use of multiple read operations on large headers.

Priority

Medium

Cvss 3 Severity Score

7.5

Score breakdown

Status

Package Release Status
lighttpd
Launchpad, Ubuntu, Debian
bionic Not vulnerable
(code not present)
kinetic Not vulnerable

focal Not vulnerable
(code not present)
impish Not vulnerable
(1.4.59-1ubuntu2)
jammy Not vulnerable

lunar Not vulnerable

upstream
Released (1.4.59-1)
mantic Not vulnerable

Patches:
upstream: https://github.com/lighttpd/lighttpd1.4/commit/b03b86f47b0d5a553137f081fadc482b4af1372d

Severity score breakdown

Parameter Value
Base score 7.5
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Scope Unchanged
Confidentiality None
Integrity impact None
Availability impact High
Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H