Description
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.
Published: 2015-08-24
Score: 7 High
EPSS: 2.1% Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

No analysis available yet.

Remediation

No remediation available yet.

Tracking

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Advisories
Source ID Title
Debian DLA Debian DLA DLA-1500-1 openssh security update
EUVD EUVD EUVD-2015-6503 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.
History

Wed, 27 May 2026 17:30:00 +0000

Type Values Removed Values Added
Metrics cvssV3_1

{'score': 7, 'vector': 'CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H'}

ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}


Subscriptions

Openbsd Openssh
Redhat Enterprise Linux
cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published:

Updated: 2026-05-27T16:18:06.617Z

Reserved: 2015-08-21T00:00:00.000Z

Link: CVE-2015-6564

cve-icon Vulnrichment

Updated: 2024-08-06T07:22:22.183Z

cve-icon NVD

Status : Modified

Published: 2015-08-24T01:59:01.657

Modified: 2026-05-27T17:16:23.160

Link: CVE-2015-6564

cve-icon Redhat

Severity : Moderate

Publid Date: 2015-08-11T00:00:00Z

Links: CVE-2015-6564 - Bugzilla

cve-icon OpenCVE Enrichment

No data.

Weaknesses