Fedora 24 update for gsi-openssh



| Updated: 2025-04-24
Risk Medium
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2016-3115
CWE-ID CWE-20
Exploitation vector Network
Public exploit Public exploit code for vulnerability #1 is available.
Vulnerable software
 Fedora
Operating systems & Components / Operating system

gsi-openssh
Operating systems & Components / Operating system package or component

Vendor Fedoraproject

Security Bulletin

This security bulletin contains one medium risk vulnerability.

1) Input validation error

EUVDB-ID: #VU33811

Risk: Medium

CVSSv4.0: 2.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:N/SC:L/SI:L/SA:N/E:P/U:Green]

CVE-ID: CVE-2016-3115

CWE-ID: CWE-20 - Improper input validation

Exploit availability: Yes

Description

The vulnerability allows a remote authenticated user to read and manipulate data.

Multiple CRLF injection vulnerabilities in session.c in sshd in OpenSSH before 7.2p2 allow remote authenticated users to bypass intended shell-command restrictions via crafted X11 forwarding data, related to the (1) do_authenticated1 and (2) session_x11_req functions. <a href="https://cwe.mitre.org/data/definitions/93.html">CWE-93: Improper Neutralization of CRLF Sequences ('CRLF Injection')</a>

Mitigation

Install updates from vendor's repository.

Vulnerable software versions

Fedora: 24

gsi-openssh: before 7.2p2-2.fc24

CPE2.3 External links

https://bodhi.fedoraproject.org/updates/FEDORA-2016-08e5803496


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated user 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.



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