Process crash via unchecked ELF program headers
Published Mar 2, 2023 · Updated Aug 2, 2024
Denial of service in Finixbit elf-parser allows local users to crash a consuming process by supplying a crafted ELF file. The get_segments method trusts the ELF header offsets and entry count, then iterates program headers without checking that each read remains inside the mapped file. Exploitation requires a local user to cause a consuming application to parse the malicious file; the demonstrated consequence is a segmentation fault, not code execution.
Summary
What happened
Denial of service in Finixbit elf-parser allows local users to crash a consuming process by supplying a crafted ELF file. The get_segments method trusts the ELF header offsets and entry count, then iterates program headers without checking that each read remains inside the mapped file. Exploitation requires a local user to cause a consuming application to parse the malicious file; the demonstrated consequence is a segmentation fault, not code execution.
The record
- CVE
- CVE-2023-1157
- Published
- Mar 2, 2023
- Updated
- Aug 2, 2024
- Vendor
- Finixbit
- Product
- elf-parser
- Classifications
- CWE-404, T1499
- Attack vector
- local
- Privileges
- Unavailable
Timeline
How it unfolded
- Mar 2, 2023CVE publishedPublication date reported by the CVE source.
- Aug 2, 2024Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
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- Affected versionversion=n/a
What conditions does exploitation require?
What is affected?
Published CVSS scores
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Attacks
What attackers are doing with it
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Weakness, pattern, technique
Public exploit references
- elf-parser_segments_pocproof of concept · demonstrated
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Technologies
Your stack
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Your stack
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