Bug 1574696 (CVE-2018-10534)

Summary: CVE-2018-10534 binutils: out of bounds memory write in peXXigen.c files
Product: [Other] Security Response Reporter: Laura Pardo <lpardo>
Component: vulnerabilityAssignee: Red Hat Product Security <security-response-team>
Status: CLOSED ERRATA QA Contact:
Severity: low Docs Contact:
Priority: low    
Version: unspecifiedCC: aoliva, dvlasenk, erik-fedora, jakub, klember, ktietz, law, mnewsome, nickc, ohudlick, rjones, yselkowi
Target Milestone: ---Keywords: Security
Target Release: ---   
Hardware: All   
OS: Linux   
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Last Closed: 2019-06-10 10:21:04 UTC Type: ---
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oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Embargoed:
Bug Depends On: 1574698, 1574699, 1574700, 1574701, 1574702, 1574704, 1574705, 1579019    
Bug Blocks: 1574703    

Description Laura Pardo 2018-05-03 21:12:56 UTC 
A flaw was found in the _bfd_XX_bfd_copy_private_bfd_data_common function in peXXigen.c in the Binary File Descriptor (BFD) library (aka libbfd), as distributed in GNU Binutils 2.30, processes a negative Data Directory size with an unbounded loop that increases the value of (external_IMAGE_DEBUG_DIRECTORY) *edd so that the address exceeds its own memory region, resulting in an out-of-bounds memory write, as demonstrated by objcopy copying private info with _bfd_pex64_bfd_copy_private_bfd_data_common in pex64igen.c.


References:
https://sourceware.org/bugzilla/show_bug.cgi?id=23110

Patch:
https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;h=aa4a8c2a2a67545e90c877162c53cc9de42dc8b4
Comment 1 Laura Pardo 2018-05-03 21:13:33 UTC 
Created binutils tracking bugs for this issue:

Affects: fedora-all [bug 1574700]


Created mingw-binutils tracking bugs for this issue:

Affects: epel-all [bug 1574698]
Affects: fedora-all [bug 1574701]
Comment 6 errata-xmlrpc 2018-10-30 07:24:16 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 7

Via RHSA-2018:3032 https://access.redhat.com/errata/RHSA-2018:3032