7.2

CVE-2015-3246

Warnung
Medienbericht
Exploit
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.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Redhat ≫ Enterprise Linux Version 5.0
Redhat ≫ Enterprise Linux Version 6.0
Redhat ≫ Enterprise Linux Version 7.0
Opensuse ≫ Opensuse Version 13.2
Libuser Project ≫ Libuser Version < 0.56.13-8
Libuser Project ≫ Libuser Version >= 0.60 < 0.60-7

26.08.2026: CISA Known Exploited Vulnerabilities (KEV) Catalog

Red Hat Libuser Race Condition Vulnerability

Schwachstelle

Red Hat libuser contains a race condition vulnerability that allows authenticated local users to corrupt the /etc/passwd file to cause a denial of service or privilege escalation.

Beschreibung

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.

Erforderliche Maßnahmen
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 6.8% 0.932
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
NIST 7.2 3.9 10
AV:L/AC:L/Au:N/C:C/I:C/A:C
CISA-ADP 7.4 1.4 5.9
CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
CWE-367 Time-of-check Time-of-use (TOCTOU) Race Condition

The product checks the state of a resource before using that resource, but the resource's state can change between the check and the use in a way that invalidates the results of the check.

Für Zugriff zu Vulnerability Intelligence ist ein VulnDex Zugang erforderlich.
VulnDex Intel
Media Report
27.08.2026 10:17
Für Zugriff zu Vulnerability Intelligence ist ein VulnDex Zugang erforderlich.
VulnDex Intel
Media Report
27.08.2026 09:32
Für Zugriff zu Vulnerability Intelligence ist ein VulnDex Zugang erforderlich.
VulnDex Intel
Media Report
24.08.2026 11:01
http://www.securitytracker.com/id/1033040
Third Party Advisory
https://access.redhat.com/articles/1537873
Vendor Advisory
Mitigation
https://www.exploit-db.com/exploits/44633/
Third Party Advisory
VDB Entry
https://www.qualys.com/2015/07/23/cve-2015-3245-cve-2015-3246/cve-2015-3245-cve-2015-3246.txt
Exploit
http://lists.opensuse.org/opensuse-security-announce/2015-08/msg00000.html
Third Party Advisory
Mailing List
http://www.securityfocus.com/bid/76022
Third Party Advisory
http://lists.fedoraproject.org/pipermail/package-announce/2015-August/163044.html
Broken Link
http://lists.fedoraproject.org/pipermail/package-announce/2015-July/162947.html
Broken Link
http://rhn.redhat.com/errata/RHSA-2015-1482.html
Vendor Advisory
http://rhn.redhat.com/errata/RHSA-2015-1483.html
Vendor Advisory
https://blog.talosintelligence.com/uat-10147-chinese-speaking-adversary-integrates-agentic-ai-into-post-compromise-operations/
Third Party Advisory
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2015-3246
US Government Resource