Bug 2054465

Summary:	libarchive: Extracting a symlink with ACLs modifies ACLs of target
Product:	[Other] Security Response	Reporter:	Todd Cullum <tcullum>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED DUPLICATE	QA Contact:
Severity:	medium	Docs Contact:
Priority:	medium
Version:	unspecified	CC:	bdettelb, caswilli, databases-maint, dhalasz, fjansen, jburrell, jnakfour, jwong, kaycoth, ljavorsk, micjohns, mike, mmuzila, ndevos, odubaj, panovotn, pkubat, praiskup, psegedy, sthirugn, tkasparek, tsasak, vkrizan, vmugicag, zmiklank
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
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Last Closed:	2022-02-15 19:16:49 UTC	Type:	---
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oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:
Bug Depends On:
Bug Blocks:	2054464

Description Todd Cullum 2022-02-15 01:18:33 UTC

In libarchive before 3.5.2, when an archive entry contains a symbolic link that has defined ACLs on Linux, on extraction the ACLs of the link target are modified. This is because the function acl_set_file() is used without a prior check if the file is not a symbolic link. On Linux ACLs on symbolic links are not supported.

Upstream issue:
https://github.com/libarchive/libarchive/issues/1565

Upstream patch:
https://github.com/libarchive/libarchive/commit/fba4f123cc456d2b2538f811bb831483bf336bad

References:
https://bugzilla.redhat.com/show_bug.cgi?id=2024245

Comment 3 Todd Cullum 2022-02-15 19:16:49 UTC


*** This bug has been marked as a duplicate of bug 2024245 ***