CVE-2015-3246 - Moodier Dials

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.

Reference

http://rhn.redhat.com/errata/RHSA-2015-1482.html http://rhn.redhat.com/errata/RHSA-2015-1483.html https://access.redhat.com/articles/1537873 https://www.qualys.com/2015/07/23/cve-2015-3245-cve-2015-3246/cve-2015-3245-cve-2015-3246.txt http://lists.opensuse.org/opensuse-security-announce/2015-08/msg00000.html http://www.securityfocus.com/bid/76022 http://lists.fedoraproject.org/pipermail/package-announce/2015-July/162947.html http://lists.fedoraproject.org/pipermail/package-announce/2015-August/163044.html http://www.securitytracker.com/id/1033040 https://www.exploit-db.com/exploits/44633/