RHSA-2026:33527

Vulnerability from csaf_redhat - Published: 2026-06-30 13:59 - Updated: 2026-06-30 14:02
Summary
Red Hat Security Advisory: Red Hat Hardened Images RPMs Security Update
Severity
Important
Notes
Topic: An update for Red Hat Hardened Images RPMs is now available.
Details: This update includes the following RPMs: binutils: * binutils-2.45.1-5.1.hum1 (aarch64, x86_64) * binutils-devel-2.45.1-5.1.hum1 (aarch64, x86_64) * binutils-gold-2.45.1-5.1.hum1 (aarch64, x86_64) * binutils-gprofng-2.45.1-5.1.hum1 (aarch64, x86_64) * binutils-2.45.1-5.1.hum1.src (src) Security Fix(es): binutils: * CVE-2026-3441 * CVE-2026-3442 * CVE-2026-4647 * CVE-2026-6846
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-2026-3441

A flaw was found in GNU Binutils. This heap-based buffer overflow vulnerability, specifically an out-of-bounds read in the bfd linker, allows an attacker to gain access to sensitive information. By convincing a user to process a specially crafted XCOFF object file, an attacker can trigger this flaw, potentially leading to information disclosure or an application level denial of service.

6.1 (Medium)
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:L
CWE-125 - Out-of-bounds Read
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
CVE-2026-3442

A flaw was found in GNU Binutils. This vulnerability, a heap-based buffer overflow, specifically an out-of-bounds read, exists in the bfd linker component. An attacker could exploit this by convincing a user to process a specially crafted malicious XCOFF object file. Successful exploitation may lead to the disclosure of sensitive information or cause the application to crash, resulting in an application level denial of service.

6.1 (Medium)
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:L
CWE-125 - Out-of-bounds Read
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
CVE-2026-4647

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.

6.1 (Medium)
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:H
CWE-125 - Out-of-bounds Read
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
CVE-2026-6846

A flaw was found in binutils. A heap-buffer-overflow vulnerability exists when processing a specially crafted XCOFF (Extended Common Object File Format) object file during linking. A local attacker could trick a user into processing this malicious file, which could lead to arbitrary code execution, allowing the attacker to run unauthorized commands, or cause a denial of service, making the system unavailable.

7.8 (High)
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
CWE-122 - Heap-based Buffer Overflow
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 Important
References
Acknowledgments
Hangzhou Dianzi University Chen Zhengzhe
Takao Sato
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          "details": "Moderate"
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          "title": "Vulnerability description"
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          "text": "This MODERATE flaw in GNU Binutils (bfd linker) requires an attacker to trick a user into running the `ld` linker against a specially crafted malicious XCOFF object file. This could lead to an out-of-bounds read.",
          "title": "Statement"
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        {
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          "details": "Moderate"
        }
      ],
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    },
    {
      "acknowledgments": [
        {
          "names": [
            "Chen Zhengzhe"
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          "organization": "Hangzhou Dianzi University"
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      "cve": "CVE-2026-4647",
      "cwe": {
        "id": "CWE-125",
        "name": "Out-of-bounds Read"
      },
      "discovery_date": "2026-03-23T12:43:59.291000+00:00",
      "ids": [
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          "system_name": "Red Hat Bugzilla ID",
          "text": "2450302"
        }
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      "notes": [
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          "category": "description",
          "text": "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.",
          "title": "Vulnerability description"
        },
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          "text": "binutils: Out-of-Bounds Read in XCOFF Relocation Processing in GNU Binutils BFD Library",
          "title": "Vulnerability summary"
        },
        {
          "category": "other",
          "text": "This is a MODERATE impact vulnerability. The flaw in GNU Binutils BFD library occurs when processing specially crafted XCOFF object files, leading to out-of-bounds memory access. This could result in application crashes or information disclosure. Exploitation requires an attacker to provide a malicious XCOFF file to a vulnerable application.",
          "title": "Statement"
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        {
          "category": "self",
          "summary": "Canonical URL",
          "url": "https://access.redhat.com/security/cve/CVE-2026-4647"
        },
        {
          "category": "external",
          "summary": "RHBZ#2450302",
          "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2450302"
        },
        {
          "category": "external",
          "summary": "https://www.cve.org/CVERecord?id=CVE-2026-4647",
          "url": "https://www.cve.org/CVERecord?id=CVE-2026-4647"
        },
        {
          "category": "external",
          "summary": "https://nvd.nist.gov/vuln/detail/CVE-2026-4647",
          "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-4647"
        },
        {
          "category": "external",
          "summary": "https://sourceware.org/bugzilla/show_bug.cgi?id=33919",
          "url": "https://sourceware.org/bugzilla/show_bug.cgi?id=33919"
        }
      ],
      "release_date": "2026-03-23T00:00:00+00:00",
      "remediations": [
        {
          "category": "vendor_fix",
          "date": "2026-06-30T13:59:52+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": [
            "Red Hat Hardened Images:binutils-main@aarch64",
            "Red Hat Hardened Images:binutils-main@src",
            "Red Hat Hardened Images:binutils-main@x86_64"
          ],
          "restart_required": {
            "category": "none"
          },
          "url": "https://access.redhat.com/errata/RHSA-2026:33527"
        },
        {
          "category": "workaround",
          "details": "Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability.",
          "product_ids": [
            "Red Hat Hardened Images:binutils-main@aarch64",
            "Red Hat Hardened Images:binutils-main@src",
            "Red Hat Hardened Images:binutils-main@x86_64"
          ]
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "attackComplexity": "LOW",
            "attackVector": "LOCAL",
            "availabilityImpact": "HIGH",
            "baseScore": 6.1,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "LOW",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "REQUIRED",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:H",
            "version": "3.1"
          },
          "products": [
            "Red Hat Hardened Images:binutils-main@aarch64",
            "Red Hat Hardened Images:binutils-main@src",
            "Red Hat Hardened Images:binutils-main@x86_64"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "details": "Moderate"
        }
      ],
      "title": "binutils: Out-of-Bounds Read in XCOFF Relocation Processing in GNU Binutils BFD Library"
    },
    {
      "acknowledgments": [
        {
          "names": [
            "Takao Sato"
          ]
        }
      ],
      "cve": "CVE-2026-6846",
      "cwe": {
        "id": "CWE-122",
        "name": "Heap-based Buffer Overflow"
      },
      "discovery_date": "2026-04-08T00:00:00+00:00",
      "ids": [
        {
          "system_name": "Red Hat Bugzilla ID",
          "text": "2460006"
        }
      ],
      "notes": [
        {
          "category": "description",
          "text": "A flaw was found in binutils. A heap-buffer-overflow vulnerability exists when processing a specially crafted XCOFF (Extended Common Object File Format) object file during linking. A local attacker could trick a user into processing this malicious file, which could lead to arbitrary code execution, allowing the attacker to run unauthorized commands, or cause a denial of service, making the system unavailable.",
          "title": "Vulnerability description"
        },
        {
          "category": "summary",
          "text": "binutils: Binutils: Arbitrary code execution via malformed XCOFF object file processing",
          "title": "Vulnerability summary"
        },
        {
          "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.",
          "title": "CVSS score applicability"
        }
      ],
      "product_status": {
        "fixed": [
          "Red Hat Hardened Images:binutils-main@aarch64",
          "Red Hat Hardened Images:binutils-main@src",
          "Red Hat Hardened Images:binutils-main@x86_64"
        ]
      },
      "references": [
        {
          "category": "self",
          "summary": "Canonical URL",
          "url": "https://access.redhat.com/security/cve/CVE-2026-6846"
        },
        {
          "category": "external",
          "summary": "RHBZ#2460006",
          "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2460006"
        },
        {
          "category": "external",
          "summary": "https://www.cve.org/CVERecord?id=CVE-2026-6846",
          "url": "https://www.cve.org/CVERecord?id=CVE-2026-6846"
        },
        {
          "category": "external",
          "summary": "https://nvd.nist.gov/vuln/detail/CVE-2026-6846",
          "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-6846"
        }
      ],
      "release_date": "2026-04-08T00:00:00+00:00",
      "remediations": [
        {
          "category": "vendor_fix",
          "date": "2026-06-30T13:59:52+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": [
            "Red Hat Hardened Images:binutils-main@aarch64",
            "Red Hat Hardened Images:binutils-main@src",
            "Red Hat Hardened Images:binutils-main@x86_64"
          ],
          "restart_required": {
            "category": "none"
          },
          "url": "https://access.redhat.com/errata/RHSA-2026:33527"
        },
        {
          "category": "workaround",
          "details": "Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability.",
          "product_ids": [
            "Red Hat Hardened Images:binutils-main@aarch64",
            "Red Hat Hardened Images:binutils-main@src",
            "Red Hat Hardened Images:binutils-main@x86_64"
          ]
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "attackComplexity": "LOW",
            "attackVector": "LOCAL",
            "availabilityImpact": "HIGH",
            "baseScore": 7.8,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "REQUIRED",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
            "version": "3.1"
          },
          "products": [
            "Red Hat Hardened Images:binutils-main@aarch64",
            "Red Hat Hardened Images:binutils-main@src",
            "Red Hat Hardened Images:binutils-main@x86_64"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "details": "Important"
        }
      ],
      "title": "binutils: Binutils: Arbitrary code execution via malformed XCOFF object file processing"
    }
  ]
}


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Tags
Taxonomy of the tags.





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.