CVE-2015-3246 | BDVDB-2026-70882 Detail
Red HatLibuser
Description#
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.
Impact#
Per CVSS v3.1: confidentiality impact high, integrity impact high, availability impact high. Attack vector: local.
Weaknesses#
- CWE-367 Time-of-check Time-of-use (TOCTOU) Race Condition
References#
- http://www.securityfocus.com/bid/76022
- http://lists.fedoraproject.org/pipermail/package-announce/2015-July/162947.html
- https://www.exploit-db.com/exploits/44633/
- https://access.redhat.com/articles/1537873
- http://rhn.redhat.com/errata/RHSA-2015-1482.html
- http://lists.fedoraproject.org/pipermail/package-announce/2015-August/163044.html
- http://lists.opensuse.org/opensuse-security-announce/2015-08/msg00000.html
- https://www.qualys.com/2015/07/23/cve-2015-3245-cve-2015-3246/cve-2015-3245-cve-2015-3246.txt
- http://www.securitytracker.com/id/1033040
- http://rhn.redhat.com/errata/RHSA-2015-1483.html
- https://blog.talosintelligence.com/uat-10147-chinese-speaking-adversary-integrates-agentic-ai-into-post-compromise-operations/
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2015-3246
Exploit#
History#
- Version 1Record published in the CVE List.
- Version 2Most recent update recorded in the CVE List.