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Servers and applications

CVE-2015-6564

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.

Severity
High 7.0
Published
24 Aug 2015
Last changed
17 Jun 2026
Added to UpHeron
21 Oct 2026
Sources
NVD

Affected software

SoftwareAffected versions
OpenSSHServers and applications · cpe:a:openbsd:openssh
  • Every version up to 6.9

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2015-6564
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2015-6564