Bug 1543244 (CVE-2018-6759) - CVE-2018-6759 binutils: Unchecked strnlen in opncls.c:bfd_get_debug_link_info_1() can allow lead to denial of service
Summary: CVE-2018-6759 binutils: Unchecked strnlen in opncls.c:bfd_get_debug_link_info...
Keywords:
Status: CLOSED ERRATA
Alias: CVE-2018-6759
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
low
low
Target Milestone: ---
Assignee: Red Hat Product Security
QA Contact:
URL:
Whiteboard:
Depends On: 1543245 1543246 1543247
Blocks: 1856610
TreeView+ depends on / blocked
 
Reported: 2018-02-08 04:55 UTC by Sam Fowler
Modified: 2020-07-17 09:29 UTC (History)
11 users (show)

Fixed In Version:
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Last Closed: 2020-07-14 04:18:25 UTC
Embargoed:

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Description Sam Fowler 2018-02-08 04:55:04 UTC 
The bfd_get_debug_link_info_1 function in opncls.c in the Binary File Descriptor (BFD) library (aka libbfd), as distributed in GNU Binutils 2.30, has an unchecked strnlen operation. Attackers could leverage this vulnerability to cause a denial of service (segmentation fault) via a crafted ELF file.


Upstream Bug:

https://sourceware.org/bugzilla/show_bug.cgi?id=22794


Upstream Patch:

https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;h=64e234d417d5685a4aec0edc618114d9991c031b
Comment 1 Sam Fowler 2018-02-08 04:55:26 UTC 
Created binutils tracking bugs for this issue:

Affects: fedora-all [bug 1543245]


Created mingw-binutils tracking bugs for this issue:

Affects: epel-all [bug 1543246]
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