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MEDIUM

binutils: abort in readelf via crafted ELF binary with malformed DWARF abbrev or debug information

Published Mar 6, 2026

Description

GNU Binutils thru 2.46 readelf contains a vulnerability that leads to an abort (SIGABRT) when processing a crafted ELF binary with malformed DWARF abbrev or debug information. Due to incomplete state cleanup in process_debug_info(), an invalid debug_info_p state may propagate into DWARF attribute parsing routines. When certain malformed attributes result in an unexpected data length of zero, byte_get_little_endian() triggers a fatal abort. No evidence of memory corruption or code execution was observed; the impact is limited to denial of service.

Affected products

Remediation

Red Hat statement

This issue is classified with a low severity primarily because binutils is not typically exposed to untrusted inputs in most environments, limiting the possibility of exploitation. Additionally, this reachable abort is only triggered during the parsing of a specially crafted file, requiring an attacker to convince a user to process this file with readelf. Furthermore, binutils does not handle privileged operations, meaning that exploitation is unlikely to lead to system compromise or escalation of privileges. Also, the impact is limited to the application itself, without affecting the broader system or network security.

Red Hat mitigation

To mitigate this vulnerability, do not process untrusted, unverified or externally supplied ELF binaries with the readelf program.

Metrics

Weaknesses (2)

References (6)

Change history (0)

No recorded changes yet.

Sources
CVE.org / MITRE
Status PUBLISHED
Assigner mitre
Published Mar 6, 2026
Updated Mar 9, 2026
Reserved Jan 9, 2026
CISA Vulnrichment
Updated Mar 9, 2026
NVD
Status Analyzed
Modified Jun 17, 2026
Red Hat
Severity Low
Public date Mar 6, 2026