Input validation error in openssh (Alpine package)
| 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 |
openssh (Alpine package) Operating systems & Components / Operating system package or component |
| Vendor | Alpine Linux Development Team |
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
DescriptionThe 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>
MitigationInstall update from vendor's website.
Vulnerable software versionsopenssh (Alpine package): 6.6_p1-r7
CPE2.3 External linkshttps://git.alpinelinux.org/aports/commit/?id=b1a290f67ac9baac539075e7c3bd5aa22e8d971a
https://git.alpinelinux.org/aports/commit/?id=bcf54b973a7e04bd757bab2443e1f44129bbc662
https://git.alpinelinux.org/aports/commit/?id=73bfff8d0f1b63e62714a8d7ee4b98049c84addc
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.
