Bug 1649068 (CVE-2018-19052)

Summary:	CVE-2018-19052 lighttpd: path traversal in mod_alias_physical_handler in mod_alias.c
Product:	[Other] Security Response	Reporter:	Laura Pardo <lpardo>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED UPSTREAM	QA Contact:
Severity:	medium	Docs Contact:
Priority:	medium
Version:	unspecified	CC:	gwync, matthias, rhbugs
Target Milestone:	---	Keywords:	Security
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Hardware:	All
OS:	Linux
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Last Closed:	2019-06-10 10:42:30 UTC	Type:	---
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oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
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Embargoed:
Bug Depends On:	1649069
Bug Blocks:

Description Laura Pardo 2018-11-12 20:26:45 UTC

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. 


References:
https://github.com/lighttpd/lighttpd1.4/commit/2105dae0f9d7a964375ce681e53cb165375f84c1

Comment 1 Laura Pardo 2018-11-12 20:27:25 UTC

Created lighttpd tracking bugs for this issue:

Affects: epel-6 [bug 1649069]

Comment 2 Product Security DevOps Team 2019-06-10 10:42:30 UTC

This CVE Bugzilla entry is for community support informational purposes only as it does not affect a package in a commercially supported Red Hat product. Refer to the dependent bugs for status of those individual community products.