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RHSA-2026:34924

Vulnerability from csaf_redhat - Published: 2026-07-02 13:01 - Updated: 2026-09-07 02:36
Summary
Red Hat Security Advisory: Red Hat Hardened Images RPMs Security Update
Severity
Moderate
Notes
Topic: An update for Red Hat Hardened Images RPMs is now available.
Details: This update includes the following RPMs: binutils: * binutils-2.45.1-5.2.hum1 (aarch64, x86_64) * binutils-devel-2.45.1-5.2.hum1 (aarch64, x86_64) * binutils-gold-2.45.1-5.2.hum1 (aarch64, x86_64) * binutils-gprofng-2.45.1-5.2.hum1 (aarch64, x86_64) * binutils-2.45.1-5.2.hum1.src (src) Security Fix(es): binutils: * CVE-2026-6845
Terms of Use: This content is licensed under the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0/). If you distribute this content, or a modified version of it, you must provide attribution to Red Hat Inc. and provide a link to the original.
CVE-2026-6845

A flaw was found in binutils, specifically within the `readelf` utility. This vulnerability allows a local attacker to cause a Denial of Service (DoS) by tricking a user into processing a specially crafted Executable and Linkable Format (ELF) file. The exploitation of this flaw can lead to the system becoming unresponsive due to excessive resource consumption or a program crash.

5.0 (Medium)
CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:N/I:N/A:H
CWE-476 - NULL Pointer Dereference
Affected products
Product Identifier Version Remediation
Unresolved product id: Red Hat Hardened Images:binutils-main@aarch64 —
Vendor Fix fix
Workaround
Unresolved product id: Red Hat Hardened Images:binutils-main@src —
Vendor Fix fix
Workaround
Unresolved product id: Red Hat Hardened Images:binutils-main@x86_64 —
Vendor Fix fix
Workaround
Threats
Impact Moderate
References
To clipboard 

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        "text": "This update includes the following RPMs:\n\nbinutils:\n  * binutils-2.45.1-5.2.hum1 (aarch64, x86_64)\n  * binutils-devel-2.45.1-5.2.hum1 (aarch64, x86_64)\n  * binutils-gold-2.45.1-5.2.hum1 (aarch64, x86_64)\n  * binutils-gprofng-2.45.1-5.2.hum1 (aarch64, x86_64)\n  * binutils-2.45.1-5.2.hum1.src (src)\n\nSecurity Fix(es):\n\nbinutils:\n  * CVE-2026-6845",
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        "name": "NULL Pointer Dereference"
      },
      "discovery_date": "2026-04-13T00:00:00+00:00",
      "ids": [
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          "text": "A flaw was found in binutils, specifically within the `readelf` utility. This vulnerability allows a local attacker to cause a Denial of Service (DoS) by tricking a user into processing a specially crafted Executable and Linkable Format (ELF) file. The exploitation of this flaw can lead to the system becoming unresponsive due to excessive resource consumption or a program crash.",
          "title": "Vulnerability description"
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          "text": "binutils: Binutils: Denial of Service via crafted ELF file",
          "title": "Vulnerability summary"
        },
        {
          "category": "other",
          "text": "This Moderate impact vulnerability in the `readelf` utility, part of `binutils`, can lead to a denial of service. An attacker could exploit this by convincing a user to process a specially crafted ELF file, resulting in resource exhaustion or a null pointer dereference. This affects Red Hat Enterprise Linux and Red Hat Developer Toolset where `readelf` is used to examine untrusted ELF binaries.",
          "title": "Statement"
        },
        {
          "category": "general",
          "text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
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        }
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          "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2460012"
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          "summary": "https://www.cve.org/CVERecord?id=CVE-2026-6845",
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        {
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          "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-6845"
        }
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      "release_date": "2026-04-13T00:00:00+00:00",
      "remediations": [
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          "date": "2026-07-02T13:01:29+00:00",
          "details": "For details on how to apply this update, which includes the changes described in this advisory, refer to:\nhttps://images.redhat.com/",
          "product_ids": [
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            "Red Hat Hardened Images:binutils-main@src",
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            "category": "none"
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          "url": "https://access.redhat.com/errata/RHSA-2026:34924"
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        {
          "category": "workaround",
          "details": "To mitigate this issue, users should avoid processing untrusted or suspicious ELF files with the `readelf` utility. No specific configuration or operational control is available to prevent this vulnerability without affecting the intended functionality of `readelf`.",
          "product_ids": [
            "Red Hat Hardened Images:binutils-main@aarch64",
            "Red Hat Hardened Images:binutils-main@src",
            "Red Hat Hardened Images:binutils-main@x86_64"
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      "scores": [
        {
          "cvss_v3": {
            "attackComplexity": "LOW",
            "attackVector": "LOCAL",
            "availabilityImpact": "HIGH",
            "baseScore": 5.0,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "NONE",
            "integrityImpact": "NONE",
            "privilegesRequired": "LOW",
            "scope": "UNCHANGED",
            "userInteraction": "REQUIRED",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:N/I:N/A:H",
            "version": "3.1"
          },
          "products": [
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          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "details": "Moderate"
        }
      ],
      "title": "binutils: Binutils: Denial of Service via crafted ELF file"
    }
  ]
}



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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Detection rules are retrieved from Rulezet.


Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.