Use-after-free vulnerability in the mm_answer_pam_free_ctx function in monitor.c in sshd in OpenSSH before 7.0 on non-OpenBSD platforms might allow local users to gain privileges by leveraging control of the sshd uid to send an unexpectedly early MONITOR_REQ_PAM_FREE_CTX request.
Exploitability
AV:LAC:MAu:NImpact
C:CI:CA:C6.9/AV:L/AC:M/Au:N/C:C/I:C/A:C