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.

CVSS 3.1

7.4CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS

8.5% chance of exploitation in the next 30 days; higher than 95% of CVEs (scores of 2026-10-25)

CISA KEV

listed 2026-08-26, due 2026-09-09

CWEs

CWE-264, CWE-367

Published

2015-08-11

Modified

2026-10-02

Record from

the NVD, synced 2026-10-19

Affected

• libuser_project:libuser
• opensuse:opensuse
• redhat:enterprise_linux

References

• http://lists.fedoraproject.org/pipermail/package-announce/2015-August/163044.html
• http://lists.fedoraproject.org/pipermail/package-announce/2015-July/162947.html
• http://lists.opensuse.org/opensuse-security-announce/2015-08/msg00000.html
• http://rhn.redhat.com/errata/RHSA-2015-1482.html
• http://rhn.redhat.com/errata/RHSA-2015-1483.html

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