CVE-2026-3442

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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."}, {"lang": "es", "value": "Se encontr\u00f3 una falla en GNU Binutils. Esta vulnerabilidad, un desbordamiento de b\u00fafer basado en mont\u00edculo, espec\u00edficamente una lectura fuera de l\u00edmites, existe en el componente enlazador bfd. Un atacante podr\u00eda explotar esto al convencer a un usuario de procesar un archivo objeto XCOFF malicioso especialmente dise\u00f1ado. La explotaci\u00f3n exitosa podr\u00eda llevar a la divulgaci\u00f3n de informaci\u00f3n sensible o causar que la aplicaci\u00f3n falle, lo que resultar\u00eda en una denegaci\u00f3n de servicio a nivel de aplicaci\u00f3n."}], "id": "CVE-2026-3442", "lastModified": "2026-11-05T21:18:47.933", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "LOW", "baseScore": 6.1, "baseSeverity": "MEDIUM", "confidentialityImpact": "HIGH", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:L", "version": "3.1"}, "exploitabilityScore": 1.8, "impactScore": 4.2, "source": "secalert@redhat.com", "type": "Secondary"}, {"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 7.1, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 1.8, "impactScore": 5.2, "source": "nvd@nist.gov", "type": "Primary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-3442", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2026-03-16T19:16:44.986147Z", "version": "2.0.3"}}]}, "published": "2026-03-16T14:19:47.720", "references": [{"source": "secalert@redhat.com", "url": "https://access.redhat.com/errata/RHSA-2026:33527"}, {"source": "secalert@redhat.com", "url": "https://access.redhat.com/errata/RHSA-2026:39022"}, {"source": "secalert@redhat.com", "tags": ["Vendor Advisory"], "url": "https://access.redhat.com/security/cve/CVE-2026-3442"}, {"source": "secalert@redhat.com", "tags": ["Issue Tracking", "Vendor Advisory"], "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2443828"}], "sourceIdentifier": "secalert@redhat.com", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-125"}], "source": "secalert@redhat.com", "type": "Secondary"}]}

{"bugzilla": {"description": "binutils: GNU Binutils: Information disclosure or denial of service via out-of-bounds read in bfd linker", "id": "2443828", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2443828"}, "csaw": false, "cvss3": {"cvss3_base_score": "6.1", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:L", "status": "draft"}, "cwe": "CWE-125", "details": ["No description is available for this CVE."], "mitigation": {"lang": "en:us", "value": "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."}, "name": "CVE-2026-3442", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Fix deferred", "package_name": "binutils", "product_name": "Red Hat Enterprise Linux 10"}, {"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Fix deferred", "package_name": "gcc-toolset-15-binutils", "product_name": "Red Hat Enterprise Linux 10"}, {"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Fix deferred", "package_name": "gdb", "product_name": "Red Hat Enterprise Linux 10"}, {"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Fix deferred", "package_name": "mingw-binutils", "product_name": "Red Hat Enterprise Linux 10"}, {"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Out of support scope", "package_name": "binutils", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Fix deferred", "package_name": "binutils", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Fix deferred", "package_name": "gdb", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Fix deferred", "package_name": "binutils", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Fix deferred", "package_name": "gcc-toolset-14-binutils", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Fix deferred", "package_name": "gcc-toolset-14-gdb", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Fix deferred", "package_name": "gcc-toolset-15-binutils", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Fix deferred", "package_name": "gcc-toolset-15-gdb", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Fix deferred", "package_name": "gdb", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Fix deferred", "package_name": "mingw-binutils", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Fix deferred", "package_name": "binutils", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Fix deferred", "package_name": "gcc-toolset-14-binutils", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Fix deferred", "package_name": "gcc-toolset-15-binutils", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Fix deferred", "package_name": "gdb", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Fix deferred", "package_name": "mingw-binutils", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/a:redhat:openshift:4", "fix_state": "Fix deferred", "package_name": "rhcos", "product_name": "Red Hat OpenShift Container Platform 4"}], "public_date": "2026-03-02T11:11:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-3442\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-3442"], "statement": "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.", "threat_severity": "Moderate"}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": null}], "enrichment": {"confidence": 100.0, "confidence_source": "manual", "scores": [{"score": 100.0, "source": "manual"}]}, "product": "binutils", "vendor": "gnu"}], "analysis": {"en": {"generated_at": "2026-04-15T22:39:00.908568+00:00", "value": {"mitigation_remediation": ["Update GNU Binutils to the most recent vendor release that addresses this out\u2011of\u2011bounds read; contact Red\u00a0Hat support for the official patch or upgrade path.", "Configure system security policies (e.g., SELinux or AppArmor) to restrict the Binutils bfd linker\u2019s ability to read arbitrary memory and to limit its execution to trusted files only.", "No suitable workaround is available for this issue; rely on the patch or upgrade to prevent exploitation.", "Implement monitoring to detect and block attempts to process suspicious XCOFF files, and educate users to avoid opening files from untrusted sources."], "summary": {"action": "Assess Impact", "impact": "Information disclosure or application denial of service via an out\u2011of\u2011bounds read in GNU Binutils\u2019 bfd linker"}, "threat_synthesis": {"affected_systems": "The vulnerability may affect systems that include Red\u00a0Hat Enterprise\u00a0Linux releases 6 through 10, Red\u00a0Hat Hardened Images, Red\u00a0Hat OpenShift Container Platform 4 and related GNU Binutils packages. No fixed version information is provided, so all installations of the affected component are considered at risk until a patch is applied.", "description_and_impact": "A heap\u2011based buffer overflow caused by an out\u2011of\u2011bounds read in the bfd linker component of GNU Binutils can be triggered when a user processes a specially crafted XCOFF object file. Successful exploitation may expose sensitive information or result in the linker crashing, which causes an application\u2011level denial of service. The weakness is recognized as CWE\u2011125.", "risk_and_exploitability": "The CVSS score of 6.1 indicates a medium severity overall. An EPSS score of less than 1\u202f% suggests that the likelihood of exploitation is low at the current time. The vulnerability is not listed in CISA\u2019s KEV catalog. Exploitation requires that a user intentionally or inadvertently load a malicious XCOFF file, meaning that the threat is limited to environments that allow such file processing. Nevertheless, the potential impact on confidentiality and availability warrants assessment and, where possible, mitigation."}}}}, "created": "2026-03-03T08:47:01.518841+00:00", "updated": "2026-04-15T22:45:16.440170+00:00", "vendors": ["gnu", "gnu$PRODUCT$binutils"]}