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Bug 1435640 - (CVE-2017-6965) CVE-2017-6965 binutils: Heap-based buffer overflow in target_specific_reloc_handling in readelf
CVE-2017-6965 binutils: Heap-based buffer overflow in target_specific_reloc_h...
Status: NEW
Product: Security Response
Classification: Other
Component: vulnerability (Show other bugs)
unspecified
All Linux
medium Severity medium
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Assigned To: Red Hat Product Security
impact=moderate,public=20170213,repor...
: Security
Depends On: 1435307 1435308 1435309
Blocks: 1435650
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Reported: 2017-03-24 08:36 EDT by Adam Mariš
Modified: 2017-05-30 00:42 EDT (History)
12 users (show)

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A vulnerability was found in the readelf utility; part of binutils. A crafted ELF executable or shared library could cause readelf to write arbitrary locations on the heap while processing relocations, leading to a crash or potential code execution.
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Description Adam Mariš 2017-03-24 08:36:22 EDT 
readelf in GNU Binutils 2.28 writes to illegal addresses while processing corrupt input files containing symbol-difference relocations, leading to a heap-based buffer overflow.

Upstream bug:

https://sourceware.org/bugzilla/show_bug.cgi?id=21137

Upstream patch:

https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;h=03f7786e2f440b9892b1c34a58fb26222ce1b493
Comment 1 Adam Mariš 2017-03-24 08:58:28 EDT 
Created mingw-binutils tracking bugs for this issue:

Affects: epel-all [bug 1435309]
Comment 4 Doran Moppert 2017-05-30 00:42:19 EDT 
Statement:

Red Hat Product Security has rated this issue as having Moderate security impact. This issue is not currently planned to be addressed in future updates. For additional information, refer to the Issue Severity Classification: https://access.redhat.com/security/updates/classification/.
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