Synopsis
The remote Gentoo host is missing one or more security-related patches.
Description
The remote host is affected by the vulnerability described in GLSA-201612-25 (CrackLib: Buffer overflow)
A stack-based buffer overflow was discovered in the FascistGecosUser function of lib/fascist.c.
Impact :
A local attacker could set a specially crafted GECOS field value in “/etc/passwd”; possibly resulting in the execution of arbitrary code with the privileges of the process, a Denial of Service condition, or the escalation of privileges.
Workaround :
There is no known workaround at this time.
Solution
All CrackLib users should upgrade to the latest version:
# emerge --sync # emerge --ask --oneshot --verbose '>=sys-libs/cracklib-2.9.6-r1'