CVE-2025-69647
Received Received - Intake
Denial-of-Service in GNU Binutils readelf via Malformed DWARF Data

Publication date: 2026-03-09

Last updated on: 2026-03-13

Assigner: MITRE

Description
GNU Binutils thru 2.45.1 readelf contains a denial-of-service vulnerability when processing a crafted binary with malformed DWARF loclists data. A logic flaw in the DWARF parsing code can cause readelf to repeatedly print the same table output without making forward progress, resulting in an unbounded output loop that never terminates unless externally interrupted. A local attacker can trigger this behavior by supplying a malicious input file, causing excessive CPU and I/O usage and preventing readelf from completing its analysis.
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Meta Information
Published
2026-03-09
Last Modified
2026-03-13
Generated
2026-06-16
AI Q&A
2026-03-09
EPSS Evaluated
2026-06-15
NVD
CVE-2025-69647
EUVD
EUVD-2025-208411
Affected Vendors & Products
Showing 1 associated CPE
Vendor Product Version / Range
gnu binutils to 2.45.1 (inc)
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Exploitability
CWE
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KEV
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CWE ID Description
CWE-835 The product contains an iteration or loop with an exit condition that cannot be reached, i.e., an infinite loop.
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Executive Summary

This vulnerability exists in GNU Binutils through version 2.45.1, specifically in the readelf tool. It is a denial-of-service issue triggered when readelf processes a specially crafted binary containing malformed DWARF loclists data. Due to a logic flaw in the DWARF parsing code, readelf enters an unbounded output loop where it repeatedly prints the same table output without making progress, causing the program to never terminate unless externally stopped.

A local attacker can exploit this by providing a malicious input file to readelf, which causes excessive CPU and I/O usage and prevents readelf from completing its analysis.

Impact Analysis

The vulnerability can cause a denial-of-service condition on systems running the affected version of readelf. When triggered, it leads to excessive CPU and I/O resource consumption, potentially degrading system performance or causing the readelf tool to hang indefinitely.

This can interrupt workflows that rely on readelf for binary analysis, debugging, or development tasks, requiring manual intervention to stop the process.

Compliance Impact

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Detection Guidance

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