Pedro Lineu Orso chetcpasswd 2.4.1 and earlier verifies and updates user accounts via custom code that processes /etc/shadow and does not follow the PAM configuration, which might allow remote attackers to bypass intended restrictions implemented through PAM.

Heap-based buffer overflow in Pedro Lineu Orso chetcpasswd before 2.4 allows remote attackers to cause a denial of service (application crash) and possibly execute arbitrary code via a long X-Forwarded-For HTTP header. NOTE: The provenance of this information is unknown; the details are obtained solely from third party information.

Untrusted search path vulnerability in Pedro Lineu Orso chetcpasswd 2.4.1 and earlier allows local users to gain privileges via a modified PATH that references a malicious cp binary. NOTE: this issue might overlap CVE-2006-6639.