Bug 1543244 (CVE-2018-6759)

Summary: CVE-2018-6759 binutils: Unchecked strnlen in opncls.c:bfd_get_debug_link_info_1() can allow lead to denial of service
Product: [Other] Security Response Reporter: Sam Fowler <sfowler>
Component: vulnerabilityAssignee: Red Hat Product Security <security-response-team>
Status: CLOSED ERRATA QA Contact:
Severity: low Docs Contact:
Priority: low    
Version: unspecifiedCC: ahajkova, dvlasenk, erik-fedora, jakub, klember, ktietz, law, nickc, ohudlick, rjones, yselkowi
Target Milestone: ---Keywords: Security
Target Release: ---   
Hardware: All   
OS: Linux   
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Last Closed: 2020-07-14 04:18:25 UTC Type: ---
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Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Embargoed:
Bug Depends On: 1543245, 1543246, 1543247    
Bug Blocks: 1856610    

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]