Bug 1671439 (CVE-2019-7148)

Summary: CVE-2019-7148 elfutils: excessive memory allocation in read_long_names in elf_begin.c in libelf
Product: [Other] Security Response Reporter: Laura Pardo <lpardo>
Component: vulnerabilityAssignee: Red Hat Product Security <security-response-team>
Status: CLOSED NOTABUG QA Contact:
Severity: low Docs Contact:
Priority: low    
Version: unspecifiedKeywords: Security
Target Milestone: ---   
Target Release: ---   
Hardware: All   
OS: Linux   
Whiteboard:
Fixed In Version: Doc Type: If docs needed, set a value
Doc Text:
Story Points: ---
Clone Of: Environment:
Last Closed: 2019-02-22 15:28:42 UTC Type: ---
Regression: --- Mount Type: ---
Documentation: --- CRM:
Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Embargoed:
Bug Depends On:    
Bug Blocks: 1671448    

Description Laura Pardo 2019-01-31 15:29:28 UTC
A vulnerability was found in elfutils 0.174. An attempted excessive memory allocation was discovered in the function read_long_names in elf_begin.c in libelf. Remote attackers could leverage this vulnerability to cause a denial-of-service via crafted elf input, which leads to an out-of-memory exception.


References:
https://sourceware.org/bugzilla/show_bug.cgi?id=24085

Comment 2 Riccardo Schirone 2019-02-22 15:28:42 UTC
I'm closing this as NOTABUG and I have requested to reject this CVE to MITRE, because the issue is just caused by ASAN, which tries to detect big allocations.