MGASA-2016-0280: openssh Mageia

Vulnerability summary

MGASA-2016-0280 is a vulnerability in openssh Mageia with no CVSS score yet.

Timeline

1. 31-08-2016
   PublishedVulnerability first disclosed.
2. 16-04-2026
   Last modifiedVulnerability information updated.

Description

Updated openssh packages fix security vulnerability The do_setup_env function in session.c in sshd in OpenSSH through 7.2p2, when the UseLogin feature is enabled and PAM is configured to read .pam_environment files in user home directories, allows local users to gain privileges by triggering a crafted environment for the /bin/login program, as demonstrated by an LD_PRELOAD environment variable (CVE-2015-8325). When SSHD tries to authenticate a non-existing user, it will pick up a fake password structure hard-coded in the SSHD source code. An attacker can measure timing information to determine if a user exists when verifying a password (CVE-2016-6210). The auth_password function in auth-passwd.c in sshd in OpenSSH before 7.3 does not limit password lengths for password authentication, which allows remote attackers to cause a denial of service (crypt CPU consumption) via a long string (CVE-2016-6515). Note that CVE-2015-8325 and CVE-2016-6210 wouldn't affect most Mageia systems, as UseLogin is not enabled by default and Mageia uses Blowfish password hashes by default.

No weakness data has been published for this record.