Bug 1574852 (CVE-2018-10380)

Summary:	CVE-2018-10380 pam-kwallet: Access to privileged files
Product:	[Other] Security Response	Reporter:	Andrej Nemec <anemec>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED ERRATA	QA Contact:
Severity:	high	Docs Contact:
Priority:	high
Version:	unspecified	CC:	jgrulich, orion, rdieter
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:		Doc Type:	If docs needed, set a value
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2021-10-21 20:02:50 UTC	Type:	---
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:
Bug Depends On:	1574853
Bug Blocks:

Description Andrej Nemec 2018-05-04 07:46:15 UTC

It was found that kwallet-pam was doing file writing and permission changing as root that with correct timing and use of carefully crafted symbolic links could allow a non privileged user to become the owner of any file on the system.

External References:

https://www.kde.org/info/security/advisory-20180503-1.txt

Upstream patches:

https://commits.kde.org/kwallet-pam/2134dec85ce19d6378d03cddfae9e5e464cb24c0
https://commits.kde.org/kwallet-pam/01d4143fda5bddb6dca37b23304dc239a5fb38b5

Comment 1 Andrej Nemec 2018-05-04 07:46:52 UTC

Created pam-kwallet tracking bugs for this issue:

Affects: epel-7 [bug 1574853]

Comment 2 Fedora Update System 2018-05-14 17:53:18 UTC

pam-kwallet-5.12.5-3.fc28 has been pushed to the Fedora 28 stable repository. If problems still persist, please make note of it in this bug report.

Comment 3 Fedora Update System 2018-05-14 18:34:52 UTC

pam-kwallet-5.12.5-3.fc27 has been pushed to the Fedora 27 stable repository. If problems still persist, please make note of it in this bug report.