Alpine: multiple openssh packages: security update to 6.9-r1 (deprecated)

high Tenable Cloud Security Plugin ID 401103

Description

There are packages installed that are affected by multiple vulnerabilities referenced in the following CVEs:

- The monitor component in sshd in OpenSSH before 7.0 on non-OpenBSD platforms accepts extraneous username
data in MONITOR_REQ_PAM_INIT_CTX requests, which allows local users to conduct impersonation attacks by
leveraging any SSH login access in conjunction with control of the sshd uid to send a crafted
MONITOR_REQ_PWNAM request, related to monitor.c and monitor_wrap.c. (CVE-2015-6563)

- 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. (CVE-2015-6564)

- sshd in OpenSSH 6.8 and 6.9 uses world-writable permissions for TTY devices, which allows local users to
cause a denial of service (terminal disruption) or possibly have unspecified other impact by writing to a
device, as demonstrated by writing an escape sequence. (CVE-2015-6565)

See Also

https://git.alpinelinux.org/aports/commit/?id=26c30cf5be4151eee04678ad118d056de0601833

https://git.alpinelinux.org/aports/commit/?id=fd2d5633fcea1fb35f3b67dfe1c51aebcac3696f

Plugin Details

Severity: High

ID: 401103

Version: Revision 1.23

Type: Local

Published: 8/16/2023

Updated: 7/2/2026

Supported Sensors: Agentless Assessment, Tenable Cloud Security, Tenable Self-Hosted Container Security

Risk Information

VPR

Risk Factor: Medium

Score: 4.9

Percentile: 57.12

CVSS v2

Risk Factor: High

Base Score: 7.2

Temporal Score: 5.6

Vector: CVSS2#AV:L/AC:L/Au:N/C:C/I:C/A:C

CVSS Score Source: CVE-2015-6565

CVSS v3

Risk Factor: High

Base Score: 7

Temporal Score: 6.3

Vector: CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

Temporal Vector: CVSS:3.0/E:P/RL:O/RC:C

CVSS Score Source: CVE-2015-6564

Vulnerability Information

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 8/26/2015

Vulnerability Publication Date: 8/12/2015

Reference Information

CVE: CVE-2015-6563, CVE-2015-6564, CVE-2015-6565

BID: 76317, 76497