USN-2935-1

Dashboard / Vulnerabilities / USN-2935-1

USN-2935-1

Summary: pam vulnerabilities

Details: It was discovered that the PAM pam_userdb module incorrectly used a case-insensitive method when comparing hashed passwords. A local attacker could possibly use this issue to make brute force attacks easier. This issue only affected Ubuntu 12.04 LTS and Ubuntu 14.04 LTS. (CVE-2013-7041) Sebastian Krahmer discovered that the PAM pam_timestamp module incorrectly performed filtering. A local attacker could use this issue to create arbitrary files, or possibly bypass authentication. This issue only affected Ubuntu 12.04 LTS and Ubuntu 14.04 LTS. (CVE-2014-2583) Sebastien Macke discovered that the PAM pam_unix module incorrectly handled large passwords. A local attacker could possibly use this issue in certain environments to enumerate usernames or cause a denial of service. (CVE-2015-3238)

References: https://ubuntu.com/security/notices/USN-2935-1, https://ubuntu.com/security/CVE-2013-7041, https://ubuntu.com/security/CVE-2014-2583, https://ubuntu.com/security/CVE-2015-3238