CVE-2015-3246

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.

• CWE-264
• CWE-367

• https://lists.fedoraproject.org/pipermail/package-announce/2015-August/163044.htmlBroken Link
• https://lists.fedoraproject.org/pipermail/package-announce/2015-July/162947.htmlBroken Link
• https://lists.opensuse.org/opensuse-security-announce/2015-08/msg00000.htmlMailing List, Third Party Advisory
• https://rhn.redhat.com/errata/RHSA-2015-1482.htmlVendor Advisory
• https://rhn.redhat.com/errata/RHSA-2015-1483.htmlVendor Advisory
• https://www.securityfocus.com/bid/76022Third Party Advisory
• https://www.securitytracker.com/id/1033040Third Party Advisory
• https://access.redhat.com/articles/1537873Mitigation, Vendor Advisory
• 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.txtExploit
• https://lists.fedoraproject.org/pipermail/package-announce/2015-August/163044.htmlBroken Link
• https://lists.fedoraproject.org/pipermail/package-announce/2015-July/162947.htmlBroken Link
• https://lists.opensuse.org/opensuse-security-announce/2015-08/msg00000.htmlMailing List, Third Party Advisory
• https://rhn.redhat.com/errata/RHSA-2015-1482.htmlVendor Advisory
• https://rhn.redhat.com/errata/RHSA-2015-1483.htmlVendor Advisory
• https://www.securityfocus.com/bid/76022Third Party Advisory
• https://www.securitytracker.com/id/1033040Third Party Advisory
• https://access.redhat.com/articles/1537873Mitigation, Vendor Advisory
• 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.txtExploit
• 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-2015-3246US Government Resource

Published

Aug 11, 2015

Last Modified

Aug 27, 2026

Status

Analyzed

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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