Bug 1340110 (CVE-2016-5041)

Summary: CVE-2016-5041 libdwarf: Null pointer dereference in _dwarf_file_name_is_full_path()
Product: [Other] Security Response Reporter: Andrej Nemec <anemec>
Component: vulnerabilityAssignee: Red Hat Product Security <security-response-team>
Status: CLOSED WONTFIX QA Contact:
Severity: low Docs Contact:
Priority: low    
Version: unspecifiedCC: fche, orion
Target Milestone: ---Keywords: Security
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Hardware: All   
OS: Linux   
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Last Closed: 2016-05-26 13:42:53 UTC Type: ---
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Description Andrej Nemec 2016-05-26 13:16:29 UTC
A vulnerability was found in libdwarf. If no DW_AT_name is present in a debugging information entry using DWARF5 macros a null dereference in dwarf_macro5.c will crash the application. 

References:

http://seclists.org/oss-sec/2016/q2/393

External references:

https://www.prevanders.net/dwarfbug.html

Upstream fix:

https://sourceforge.net/p/libdwarf/code/ci/98a3da1e8237fe0d45b67ef77f3fa5ed9ff0215f

Comment 1 Tom Hughes 2016-05-26 13:19:04 UTC
Already fixed in Fedora.