CVE-2015-6564 — Use After Free in Openssh

CWE-264CWE-416 — Use After Free7 documents7 sources
Severity
6.9MEDIUMNVD
EPSS
2.0%
top 16.16%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
1
Openbsd Openssh
Timeline
PublishedAug 24
Latest updateMay 14

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.

CVSS vector

AV:L/AC:M/C:C/I:C/A:CExploitability: 3.4 | Impact: 10.0

Affected Packages2 packages

▶Debianopenbsd/openssh< 1:6.9p1-1+3

🔴Vulnerability Details

3
GHSA
GHSA-cm6p-9f8w-c878: Use-after-free vulnerability in the mm_answer_pam_free_ctx function in monitor↗2022-05-14
▶
OSV
CVE-2015-6564: Use-after-free vulnerability in the mm_answer_pam_free_ctx function in monitor↗2015-08-24
▶
CVEList
CVE-2015-6564: Use-after-free vulnerability in the mm_answer_pam_free_ctx function in monitor↗2015-08-24
▶

📋Vendor Advisories

2
Red Hat
openssh: Use-after-free bug related to PAM support↗2015-08-11
▶
Debian
CVE-2015-6564: openssh - Use-after-free vulnerability in the mm_answer_pam_free_ctx function in monitor.c...↗2015
▶

💬Community

1
Bugzilla
CVE-2015-6564 openssh: Use-after-free bug related to PAM support↗2015-08-12
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CVE-2015-6564 — Use After Free in Openbsd Openssh | cvebase