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7.4Alta KEV

CVE-2015-3246Red Hat Libuser Race Condition Vulnerability

redhat enterprise linux; opensuse opensuse; libuser project libuser Publicada: (hace 11 años)

Explotación conocida — Red Hat Libuser Race Condition Vulnerability

CISA confirmó el 26.08.2026 que esta vulnerabilidad se usa en ataques reales. Plazo para las agencias federales de EE. UU.: 09.09.2026.

Acción requerida: Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA’s “Forensics Triage Requirements” (see URL in Notes). Follow applicable BOD 26-04 guidance for cloud services or discontinue use of the product if mitigations are unavailable. Stakeholders are responsible for evaluating each asset's internet exposure and ensuring adherence to BOD 26-04 patching guidelines. This vulnerability affects an open-source component, third-party library, protocol, or proprietary implementation that could be used by different products. For more information, please see: https://access.redhat.com/articles/1537873 ; BOD 26-04: https://www.cisa.gov/news-events/directives/bod-26-04-prioritizing-security-updates-based-risk ; Forensics Triage Requirements: https://www.cisa.gov/news-events/directives/bod-26-04-implementation-guidance-prioritizing-security-updates-based-risk ; https://nvd.nist.gov/vuln/detail/CVE-2015-3246

Descripción

libuser before 0.56.13-8 and 0.60 before 0.60-7, as used in the userhelper program in the usermode package, directly modifies /etc/passwd, which allows local users to cause a denial of service (inconsistent file state) by causing an error during the modification. NOTE: this issue can be combined with CVE-2015-3245 to gain privileges.

Debilidad (CWE): CWE-367CWE-264

Datos: CVE.org, NVD, CISA KEV, FIRST EPSS, Ubuntu. Se publican tal como los indican las fuentes, en inglés.

Productos y versiones afectados

FabricanteProductoVersiones
libuser project libuser < 0.56.13-8
opensuse opensuse 13.2
redhat enterprise linux 5.0

Referencias y parches

Coincidencias CPE (NVD) (6)
  • cpe:2.3:o:redhat:enterprise_linux:5.0:*:*:*:*:*:*:*
  • cpe:2.3:o:redhat:enterprise_linux:6.0:*:*:*:*:*:*:*
  • cpe:2.3:o:redhat:enterprise_linux:7.0:*:*:*:*:*:*:*
  • cpe:2.3:o:opensuse:opensuse:13.2:*:*:*:*:*:*:*
  • cpe:2.3:a:libuser_project:libuser:*:*:*:*:*:*:*:* < 0.56.13-8
  • cpe:2.3:a:libuser_project:libuser:*:*:*:*:*:*:*:* ≥ 0.60 < 0.60-7

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