Bug 1852803 (CVE-2020-15397)

Summary: CVE-2020-15397 hylafax+: unsafe handling of user-writable directories could lead to privileged code execution
Product: [Other] Security Response Reporter: Marian Rehak <mrehak>
Component: vulnerabilityAssignee: Red Hat Product Security <security-response-team>
Status: CLOSED UPSTREAM QA Contact:
Severity: high Docs Contact:
Priority: high    
Version: unspecifiedCC: faxguy
Target Milestone: ---Keywords: Security
Target Release: ---   
Hardware: All   
OS: Linux   
Whiteboard:
Fixed In Version: hylafax+ 7.0.2 Doc Type: If docs needed, set a value
Doc Text:
Story Points: ---
Clone Of: Environment:
Last Closed: 2020-07-01 13:27:36 UTC Type: ---
Regression: --- Mount Type: ---
Documentation: --- CRM:
Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Bug Depends On: 1852804, 1852805    
Bug Blocks:    

Description Marian Rehak 2020-07-01 10:53:43 UTC
HylaFAX+ through 7.0.2 and HylaFAX Enterprise have scripts that execute binaries from directories writable by unprivileged users (e.g., locations under /var/spool/hylafax that are writable by the uucp account). This allows these users to execute code in the context of the user calling these binaries (often root).

Upstream Reference:

https://sourceforge.net/p/hylafax/HylaFAX+/2534/

Comment 1 Marian Rehak 2020-07-01 10:54:08 UTC
Created hylafax+ tracking bugs for this issue:

Affects: epel-all [bug 1852805]
Affects: fedora-all [bug 1852804]

Comment 2 Product Security DevOps Team 2020-07-01 13:27:36 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.