Bug 1647421 (CVE-2018-18607)

Summary: CVE-2018-18607 binutils: NULL pointer dereference in elf_link_input_bfd in elflink.c
Product: [Other] Security Response Reporter: Laura Pardo <lpardo>
Component: vulnerabilityAssignee: Red Hat Product Security <security-response-team>
Status: CLOSED ERRATA QA Contact:
Severity: low Docs Contact:
Priority: low    
Version: unspecifiedCC: abhgupta, dbaker, dvlasenk, erik-fedora, fweimer, jakub, jokerman, kanderso, klember, mcermak, mnewsome, mpolacek, nickc, ohudlick, rjones, sthangav, trankin, virt-maint, yselkowi
Target Milestone: ---Keywords: Security
Target Release: ---   
Hardware: All   
OS: Linux   
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Last Closed: 2021-10-25 22:22:01 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: 1647422, 1647423, 1647424, 1647425, 1654476, 1654477, 1654478    
Bug Blocks: 1647427    

Description Laura Pardo 2018-11-07 12:46:34 UTC 
An issue was discovered in the Binary File Descriptor (BFD) library (aka libbfd), as distributed in GNU Binutils 2.31. There is a NULL pointer dereference in elf_link_input_bfd in elflink.c when used for finding STT_TLS symbols without any TLS section. A specially crafted ELF allows remote attackers to cause a denial of service, as demonstrated by ld. 


References:
https://sourceware.org/bugzilla/show_bug.cgi?id=23805 

Upstream Patch:
https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;h=102def4da826b3d9e169741421e5e67e8731909a
Comment 1 Laura Pardo 2018-11-07 12:47:40 UTC 
Created binutils tracking bugs for this issue:

Affects: fedora-all [bug 1647423]


Created mingw-binutils tracking bugs for this issue:

Affects: epel-all [bug 1647422]