Live › vulnerability › CVE-2015-3246
Go to dashboardRace condition in libuser: it edits /etc/passwd in place instead of writing a temp copy and renaming it. A local user can run an app built on libuser (e.g. userhelper, chfn, chsh) to corrupt the file. The result is denial of service or root privilege escalation. Local access is required. CISA KEV lists it as exploited.
Summary written from the sources below. Check the originals before acting.
First seen by InfraStack 2026-10-23 19:11 UTC, 5h before NVD. All times on this page are UTC.
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.
| Product | Ecosystem | Affected | Fixed in |
|---|---|---|---|
| Red Hat Libuser | vendor | – | – |
| libuser | rpm | RHEL 5 (all); RHEL 6 < 0.56.13-8.el6_7; RHEL 7 < 0.60-7.el7_1 | 0.56.13-8.el6_7, 0.60-7.el7_1 |
| redhat enterprise linux | vendor | = 5.0 | – |
| redhat enterprise linux | vendor | = 6.0 |
| – |
| redhat enterprise linux | vendor | = 7.0 | – |
| opensuse | vendor | = 13.2 | – |
| libuser project libuser | vendor | < 0.56.13-8 | 0.56.13-8 |
| libuser project libuser | vendor | >= 0.60, < 0.60-7 | 0.60-7 |
rpm -q libuser0.56.13-8.el6_7 (RHEL6) or 0.60-7.el7_1 (RHEL7)0.56.13-8.el6_7 or later (RHSA-2015:1482)Each row is the first time that source carried this signal. The analyst’s rows are its own findings.
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.
CISA required action: 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 page as .md · .json · in your agent: get_signal("CVE-2015-3246")
CISA KEV catalog, Creative Commons 0 · NVD data is provided by NIST and is public domain. Posts quoted belong to their authors.