Bug 570381 (CVE-2010-0792)

Summary: CVE-2010-0792 fcron: unauthorized disclosure of user crontabs
Product: [Other] Security Response Reporter: Vincent Danen <vdanen>
Component: vulnerabilityAssignee: Red Hat Product Security <security-response-team>
Status: CLOSED ERRATA QA Contact:
Severity: low Docs Contact:
Priority: low    
Version: unspecifiedCC: jlieskov, jzeleny
Target Milestone: ---Keywords: Security
Target Release: ---   
Hardware: All   
OS: Linux   
URL: http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2010-0792
Whiteboard:
Fixed In Version: Doc Type: Bug Fix
Doc Text:
Story Points: ---
Clone Of: Environment:
Last Closed: 2010-06-25 09:55:17 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: 570382    
Bug Blocks:    

Description Vincent Danen 2010-03-04 05:12:30 UTC 
Dan Rosenberg discovered several race condition vulnerabilities in fcrontab,
part of the fcron scheduler, that could allow a local attacker to use symbolic
links to read unauthorized files.  If fcrontab is installed setuid root, an 
attacker can read arbitrary files, but when installed with its own group (i.e.
'fcron'), an attacker can only read other non-root users' crontabs and fcron 
configuration files.

On Fedora, fcrontab is setuid fcron, which lessens the impact.

Upstream has released fcron 3.0.5 to correct this issue.
Comment 2 Fedora Update System 2010-03-08 13:11:57 UTC 
fcron-3.0.5-1.fc13 has been submitted as an update for Fedora 13.
http://admin.fedoraproject.org/updates/fcron-3.0.5-1.fc13
Comment 3 Fedora Update System 2010-03-08 13:12:04 UTC 
fcron-3.0.5-1.fc12 has been submitted as an update for Fedora 12.
http://admin.fedoraproject.org/updates/fcron-3.0.5-1.fc12
Comment 4 Fedora Update System 2010-03-27 01:01:07 UTC 
fcron-3.0.5-1.fc12 has been pushed to the Fedora 12 stable repository.  If problems still persist, please make note of it in this bug report.
Comment 5 Fedora Update System 2010-04-01 17:18:53 UTC 
fcron-3.0.5-1.fc13 has been pushed to the Fedora 13 stable repository.  If problems still persist, please make note of it in this bug report.