Bug 1466255 (CVE-2017-9778)

Summary: CVE-2017-9778 gdb: Malformed section in an ELF binary or a core file can cause memory exhaustion
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: gbenson, gdb-bugs, jan.kratochvil, ohudlick, palves, pmuldoon, sergiodj, tom
Target Milestone: ---Keywords: Security
Target Release: ---   
Hardware: All   
OS: Linux   
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Last Closed: 2017-06-29 11:09:17 UTC Type: ---
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oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Bug Depends On: 1466257    
Bug Blocks:    

Description Andrej Nemec 2017-06-29 11:07:50 UTC
GNU Debugger (GDB) fails to detect a negative length field in a DWARF section. A malformed section in an ELF binary or a core file can cause GDB to repeatedly allocate memory until a process limit is reached. This can, for example, impede efforts to analyze malware with GDB. 

Upstream issue:

https://sourceware.org/bugzilla/show_bug.cgi?id=21600

Comment 1 Andrej Nemec 2017-06-29 11:08:41 UTC
Created gdb tracking bugs for this issue:

Affects: fedora-all [bug 1466257]