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CVE-2026-4647: Out-of-bounds Read in Red Hat Red Hat Enterprise Linux 10

0
Medium
VulnerabilityCVE-2026-4647cvecve-2026-4647
Published: Mon Mar 23 2026 (03/23/2026, 13:37:44 UTC)
Source: CVE Database V5
Vendor/Project: Red Hat
Product: Red Hat Enterprise Linux 10

Description

A flaw was found in the GNU Binutils BFD library, a widely used component for handling binary files such as object files and executables. The issue occurs when processing specially crafted XCOFF object files, where a relocation type value is not properly validated before being used. This can cause the program to read memory outside of intended bounds. As a result, affected tools may crash or expose unintended memory contents, leading to denial-of-service or limited information disclosure risks.

AI-Powered Analysis

Machine-generated threat intelligence

AILast updated: 04/10/2026, 05:27:46 UTC

Technical Analysis

This vulnerability arises from the GNU Binutils BFD library's failure to properly validate relocation type values when processing XCOFF object files. An attacker providing a specially crafted XCOFF file can cause the library to perform an out-of-bounds read, potentially leading to application crashes or exposure of unintended memory data. The issue affects Red Hat Enterprise Linux 10 and is classified with a CVSS 3.1 score of 6.1 (medium severity), reflecting local attack vector, low complexity, no privileges required, user interaction needed, unchanged scope, limited confidentiality impact, no integrity impact, and high availability impact.

Potential Impact

Successful exploitation can cause denial-of-service through application crashes or limited disclosure of memory contents. The confidentiality impact is low, integrity impact is none, and availability impact is high. The attack requires local access and user interaction, limiting the attack surface. No known exploits have been reported in the wild at this time.

Mitigation Recommendations

The vendor advisory does not explicitly confirm patch availability or provide remediation steps in the provided content. Users should monitor the official Red Hat advisory page for updates and apply any official fixes once released. Until then, avoid processing untrusted or specially crafted XCOFF object files with affected tools. No additional vendor-recommended mitigations are stated.

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Technical Details

Data Version
5.2
Assigner Short Name
redhat
Date Reserved
2026-03-23T12:48:06.297Z
Cvss Version
3.1
State
PUBLISHED

Threat ID: 69c14797f4197a8e3b602ac4

Added to database: 3/23/2026, 2:00:55 PM

Last enriched: 4/10/2026, 5:27:46 AM

Last updated: 5/7/2026, 5:02:48 AM

Views: 67

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