Anolis OS update for openssh

Published: 2023-08-04 | Updated: 2025-03-28

Risk	Medium
Patch available	YES
Number of vulnerabilities	2
CVE-ID	CVE-2023-38408 CVE-2016-10009
CWE-ID	CWE-426 CWE-20
Exploitation vector	Network
Public exploit	Public exploit code for vulnerability #1 is available. Public exploit code for vulnerability #2 is available.
Vulnerable software	Anolis OS Operating systems & Components / Operating system pam_ssh_agent_auth Operating systems & Components / Operating system package or component openssh-server Operating systems & Components / Operating system package or component openssh-ldap Operating systems & Components / Operating system package or component openssh-keycat Operating systems & Components / Operating system package or component openssh-clients Operating systems & Components / Operating system package or component openssh-cavs Operating systems & Components / Operating system package or component openssh-askpass Operating systems & Components / Operating system package or component openssh Operating systems & Components / Operating system package or component
Vendor	OpenAnolis

Security Bulletin

This security bulletin contains information about 2 vulnerabilities.

1) Untrusted search path

EUVDB-ID: #VU78454

Risk: Medium

CVSSv4.0: 6.6 [CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P/U:Green]

CVE-ID: CVE-2023-38408

CWE-ID: CWE-426 - Untrusted Search Path

Exploit availability: Yes

Description

The vulnerability allows a remote attacker to compromise the affected system.

The vulnerability exists due to usage of an insecure search path within the PKCS#11 feature in ssh-agent. A remote attacker can trick the victim into connecting to a malicious SSH server and execute arbitrary code on the system, if an agent is forwarded to an attacker-controlled system.

Note, this vulnerability exists due to incomplete fix for #VU2015 (CVE-2016-10009).

Mitigation

Install updates from vendor's repository.

Vulnerable software versions

Anolis OS: 8

pam_ssh_agent_auth: before 0.10.3-7.18.0.1

openssh-server: before 8.0p1-18.0.1

openssh-ldap: before 8.0p1-18.0.1

openssh-keycat: before 8.0p1-18.0.1

openssh-clients: before 8.0p1-18.0.1

openssh-cavs: before 8.0p1-18.0.1

openssh-askpass: before 8.0p1-18.0.1

openssh: before 8.0p1-18.0.1

CPE2.3

External links

https://anas.openanolis.cn/errata/detail/ANSA-2023:0462

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability. However, proof of concept for this vulnerability is available.

2) Improper input validation

EUVDB-ID: #VU2015

Risk: Low

CVSSv4.0: 6.6 [CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P/U:Clear]

CVE-ID: CVE-2016-10009

CWE-ID: CWE-20 - Improper input validation