Bug 1398413

Summary: glibc: backport libio vtable hardening
Product: Red Hat Enterprise Linux 7 Reporter: Florian Weimer <fweimer>
Component: glibcAssignee: DJ Delorie <dj>
Status: CLOSED ERRATA QA Contact: Sergey Kolosov <skolosov>
Severity: unspecified Docs Contact:
Priority: unspecified    
Version: 7.4CC: ashankar, codonell, dj, fweimer, mnewsome, pfrankli, skolosov
Target Milestone: rcKeywords: Patch
Target Release: ---   
Hardware: Unspecified   
OS: Unspecified   
Whiteboard:
Fixed In Version: glibc-2.17-204.el7 Doc Type: Enhancement
Doc Text:
All FILE*-based operations are now hardened against malicious attacks that attempt to manipulate function control flow by writing to the underlying FILE* memory. If a manipulation of the FILE* memory is detected the process is terminated.
Story Points: ---
Clone Of: Environment:
Last Closed: 2018-04-10 13:58:28 UTC Type: Bug
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:    
Bug Blocks: 1372375, 1473718    

Description Florian Weimer 2016-11-24 18:24:28 UTC
The upstream commit is:

commit db3476aff19b75c4fdefbe65fcd5f0a90588ba51
Author: Florian Weimer <fweimer>
Date:   Thu Jun 23 20:01:40 2016 +0200

    libio: Implement vtable verification [BZ #20191]

This was released with Fedora 25, which should give us sufficient testing coverage in the real world.

Comment 8 Florian Weimer 2018-04-03 12:02:57 UTC
*** Bug 1372306 has been marked as a duplicate of this bug. ***

Comment 10 errata-xmlrpc 2018-04-10 13:58:28 UTC
Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.

For information on the advisory, and where to find the updated
files, follow the link below.

If the solution does not work for you, open a new bug report.

https://access.redhat.com/errata/RHSA-2018:0805