Analysis hang via non-advancing DWARF loclists loop
Published Mar 9, 2026 · Updated Mar 9, 2026
Denial of service in GNU Binutils readelf 2.45.1 and earlier allows local users to hang analysis via malformed DWARF loclists data. The loclists table parser repeats the same table output without making forward progress, creating an unbounded output loop. The attack requires local ability to supply a crafted binary and sustains CPU and I/O use until readelf is externally interrupted.
Summary
What happened
Denial of service in GNU Binutils readelf 2.45.1 and earlier allows local users to hang analysis via malformed DWARF loclists data. The loclists table parser repeats the same table output without making forward progress, creating an unbounded output loop. The attack requires local ability to supply a crafted binary and sustains CPU and I/O use until readelf is externally interrupted.
The record
- CVE
- CVE-2025-69647
- Published
- Mar 9, 2026
- Updated
- Mar 9, 2026
- Vendor
- Unknown vendor
- Product
- Unknown product
- Classifications
- CWE-835, T1499
- Attack vector
- local
- Privileges
- Unavailable
Timeline
How it unfolded
- Mar 9, 2026CVE publishedPublication date reported by the CVE source.
- Mar 9, 2026Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
What conditions does exploitation require?
What is affected?
Affected products and versions are unavailable in this record.
Published CVSS scores
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Attacks
What attackers are doing with it
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Weakness, pattern, technique
Public exploit references
- Sourceware Bug 33640 crafted-input reproducerproof of concept · unverified
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Technologies
Your stack
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Your stack
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