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Bug 1022070

Summary: socat: missing length check in xiolog_ancillary_socket()
Product: Red Hat Enterprise Linux 7 Reporter: Florian Weimer <fweimer>
Component: socatAssignee: Paul Wouters <pwouters>
Status: CLOSED CURRENTRELEASE QA Contact: BaseOS QE Security Team <qe-baseos-security>
Severity: low Docs Contact:
Priority: low    
Version: 7.0CC: gerhard, jaster, omoris
Target Milestone: rc   
Target Release: ---   
Hardware: All   
OS: Linux   
Whiteboard:
Fixed In Version: 1.7.3.1-1 Doc Type: If docs needed, set a value
Doc Text:
Story Points: ---
Clone Of: Environment:
Last Closed: 2018-11-13 11:00:23 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: 1019961, 1085024    

Description Florian Weimer 2013-10-22 15:19:05 UTC
xiolog_ancillary_socket() in xio-socket.c appends bytes to the valbuff buffer without length checking here:

      sprintf(strchr(valbuff, '\0')-1/*del \n*/, ", %06ld usecs", (long)tv->tv_usec);

I think this is just hardening.

Comment 2 Gerhard 2014-03-10 21:08:45 UTC
Has been fixed in upstream release 1.7.2.4

Comment 5 Florian Weimer 2015-09-24 08:41:09 UTC
Upstream fix:

commit dfdeaa483663904399b279b21fd91556e77f79e0
Author: Gerhard Rieger <gerhard>
Date:   Sat Jan 25 10:35:21 2014 +0100

    Red Hat issue 1022070: missing length check in xiolog_ancillary_socket()

Comment 6 Paul Wouters 2018-11-13 11:00:23 UTC
This bug is addressed by ERRATA RHBA-2017:2049-03 socat bug fix update

https://errata.devel.redhat.com/advisory/26967