Vulnerability CVE-2018-18605


Published: 2018-10-23

Description:
A heap-based buffer over-read issue was discovered in the function sec_merge_hash_lookup in merge.c in the Binary File Descriptor (BFD) library (aka libbfd), as distributed in GNU Binutils 2.31, because _bfd_add_merge_section mishandles section merges when size is not a multiple of entsize. A specially crafted ELF allows remote attackers to cause a denial of service, as demonstrated by ld.

Type:

CWE-125

(Out-of-bounds Read)

CVSS2 => (AV:N/AC:M/Au:N/C:N/I:N/A:P)

CVSS Base Score
Impact Subscore
Exploitability Subscore
4.3/10
2.9/10
8.6/10
Exploit range
Attack complexity
Authentication
Remote
Medium
No required
Confidentiality impact
Integrity impact
Availability impact
None
None
Partial
Affected software
Netapp -> Data ontap 
GNU -> Binutils 
Debian -> Debian linux 

 References:
http://www.securityfocus.com/bid/105754
https://deb.freexian.com/extended-lts/tracker/CVE-2018-18605
https://security.netapp.com/advisory/ntap-20190307-0003/
https://sourceware.org/bugzilla/show_bug.cgi?id=23804
https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;h=ab419ddbb2cdd17ca83618990f2cacf904ce1d61

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