CVE-2018-19052

Publication date 7 November 2018

Last updated 24 July 2024

Ubuntu priority

Cvss 3 Severity Score

An issue was discovered in mod_alias_physical_handler in mod_alias.c in lighttpd before 1.4.50. There is potential ../ path traversal of a single directory above an alias target, with a specific mod_alias configuration where the matched alias lacks a trailing '/' character, but the alias target filesystem path does have a trailing '/' character.

Status

Show unmaintained releases

Package	Ubuntu Release	Status
lighttpd	23.04 lunar	Not affected
	22.10 kinetic	Not affected
	22.04 LTS jammy	Not affected
	21.10 impish	Not affected
	21.04 hirsute	Not affected
	20.10 groovy	Not affected
	20.04 LTS focal	Not affected
	19.10 eoan	Not affected
	19.04 disco	Not affected
	18.10 cosmic	Ignored end of life
	18.04 LTS bionic	Fixed 1.4.45-1ubuntu3.18.04.1+esm1 Ubuntu Pro
	16.04 LTS xenial	Fixed 1.4.35-4ubuntu2.1+esm1 Ubuntu Pro
	14.04 LTS trusty	Fixed 1.4.33-1+nmu2ubuntu2.1+esm1 Ubuntu Pro

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Severity score breakdown

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

References

Related Ubuntu Security Notices (USN)

USN-4775-1
Lighttpd vulnerabilities
15 March 2021