UBUNTU-CVE-2015-6564

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UBUNTU-CVE-2015-6564

Summary:

Details: 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.

References: https://ubuntu.com/security/CVE-2015-6564, https://anongit.mindrot.org/openssh.git/commit/?id=5e75f5198769056089fb06c4d738ab0e5abc66f7, http://www.openwall.com/lists/oss-security/2015/08/11/9, https://github.com/openssh/openssh-portable/commit/5e75f5198769056089fb06c4d738ab0e5abc66f7, http://www.openwall.com/lists/oss-security/2015/08/22/1, http://www.openssh.com/txt/release-7.0, http://seclists.org/fulldisclosure/2015/Aug/54, http://www.openwall.com/lists/oss-security/2015/08/22/1, https://ubuntu.com/security/notices/USN-2710-1, https://www.cve.org/CVERecord?id=CVE-2015-6564