Bug 1542275 – CVE-2018-6543 binutils: integer overflow in load_specific_debug_section function in objdump.c

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Bug 1542275 - (CVE-2018-6543) CVE-2018-6543 binutils: integer overflow in load_specific_debug_section function in objdump.c

Summary:	CVE-2018-6543 binutils: integer overflow in load_specific_debug_section func...

Status:	CLOSED NOTABUG

Aliases:	CVE-2018-6543

Product:	Security Response
Classification:	Other
Component:	vulnerability (Show other bugs)
Sub Component:
Version:	unspecified
Hardware:	All Linux

Priority	medium Severity medium
Target Milestone:	---
Target Release:	---
Assigned To:	Red Hat Product Security
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URL:
Whiteboard:	impact=moderate,public=20180201,repor...
Keywords:	Security

Depends On:	1542276
Blocks:	1542280
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Reported:	2018-02-05 19:15 EST by Laura Pardo
Modified:	2018-02-21 05:22 EST (History)
CC List:	10 users (show)

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Last Closed:	2018-02-21 05:22:41 EST
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Description Laura Pardo 2018-02-05 19:15:31 EST

A flaw was found in GNU Binutils 2.30, there's an integer overflow in the function load_specific_debug_section() in objdump.c, which results in `malloc()` with 0 size. A crafted ELF file allows remote attackers to cause a denial of service (application crash) or possibly have unspecified other impact. 

References: 
https://sourceware.org/bugzilla/show_bug.cgi?id=22769

Patch:
https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;h=f2023ce7e8d70b0155cc6206c901e185260918f0

Comment 1 Laura Pardo 2018-02-05 19:15:54 EST

Created binutils tracking bugs for this issue:

Affects: fedora-all [bug 1542276]

Comment 2 Stefan Cornelius 2018-02-20 12:42:18 EST

Introduced by https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;a=commitdiff;h=4f1881b94473f1034f950feb863b464435a8fb5f

Comment 3 Stefan Cornelius 2018-02-21 05:16:30 EST

Statement:

This issue did not affect the versions of binutils as shipped with Red Hat Enterprise Linux 5, 6, and 7.

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