Access Restriction Bypass

Affecting openssh package, versions <1:6.7p1-5+deb8u6

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Overview

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

CVSS Score

7.8
high severity
  • Attack Vector
    Local
  • Attack Complexity
    Low
  • Privileges Required
    None
  • User Interaction
    Required
  • Scope
    Unchanged
  • Confidentiality
    High
  • Integrity
    High
  • Availability
    High
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
CVE
CVE-2015-6564
CWE
CWE-264
Snyk ID
SNYK-DEBIAN8-OPENSSH-368675
Disclosed
24 Aug, 2015
Published
24 Aug, 2015