Detections
Analytics
Alpine: multiple libssh packages: security update to 0.10.6-r0
medium Tenable Cloud Security Plugin ID 427440
Description
There are packages installed that are affected by multiple vulnerabilities referenced in the following CVEs:- A flaw was found in libssh. By utilizing the ProxyCommand or ProxyJump feature, users can exploit
unchecked hostname syntax on the client. This issue may allow an attacker to inject malicious code into
the command of the features mentioned through the hostname parameter. (CVE-2023-6004)
- A flaw was found in the libssh implements abstract layer for message digest (MD) operations implemented by
different supported crypto backends. The return values from these were not properly checked, which could
cause low-memory situations failures, NULL dereferences, crashes, or usage of the uninitialized memory as
an input for the KDF. In this case, non-matching keys will result in decryption/integrity failures,
terminating the connection. (CVE-2023-6918)
- The SSH transport protocol with certain OpenSSH extensions, found in OpenSSH before 9.6 and other
products, allows remote attackers to bypass integrity checks such that some packets are omitted (from the
extension negotiation message), and a client and server may consequently end up with a connection for
which some security features have been downgraded or disabled, aka a Terrapin attack. This occurs because
the SSH Binary Packet Protocol (BPP), implemented by these extensions, mishandles the handshake phase and
mishandles use of sequence numbers. For example, there is an effective attack against SSH's use of
ChaCha20-Poly1305 (and CBC with Encrypt-then-MAC). The bypass occurs in [email protected] and
(if CBC is used) the [email protected] MAC algorithms. This also affects Maverick Synergy Java SSH API
before 3.1.0-SNAPSHOT, Dropbear through 2022.83, Ssh before 5.1.1 in Erlang/OTP, PuTTY before 0.80,
AsyncSSH before 2.14.2, golang.org/x/crypto before 0.17.0, libssh before 0.10.6, libssh2 through 1.11.0,
Thorn Tech SFTP Gateway before 3.4.6, Tera Term before 5.1, Paramiko before 3.4.0, jsch before 0.2.15,
SFTPGo before 2.5.6, Netgate pfSense Plus through 23.09.1, Netgate pfSense CE through 2.7.2, HPN-SSH
through 18.2.0, ProFTPD before 1.3.8b (and before 1.3.9rc2), ORYX CycloneSSH before 2.3.4, NetSarang
XShell 7 before Build 0144, CrushFTP before 10.6.0, ConnectBot SSH library before 2.2.22, Apache MINA sshd
through 2.11.0, sshj through 0.37.0, TinySSH through 20230101, trilead-ssh2 6401, LANCOM LCOS and
LANconfig, FileZilla before 3.66.4, Nova before 11.8, PKIX-SSH before 14.4, SecureCRT before 9.4.3,
Transmit5 before 5.10.4, Win32-OpenSSH before 9.5.0.0p1-Beta, WinSCP before 6.2.2, Bitvise SSH Server
before 9.32, Bitvise SSH Client before 9.33, KiTTY through 0.76.1.13, the net-ssh gem 7.2.0 for Ruby, the
mscdex ssh2 module before 1.15.0 for Node.js, the thrussh library before 0.35.1 for Rust, and the Russh
crate before 0.40.2 for Rust. (CVE-2023-48795)
See Also
https://security.alpinelinux.org/vuln/CVE-2023-48795
Plugin Details
Severity: Medium
ID: 427440
Version: Revision 1.5
Type: Local
Published: 5/16/2025
Updated: 12/22/2025
Supported Sensors: Agentless Assessment
Risk Information
VPR
Risk Factor: Medium
Score: 5
Percentile: 94.39
CVSS v2
Risk Factor: Medium
Base Score: 5.4
Temporal Score: 4.2
Vector: CVSS2#AV:N/AC:H/Au:N/C:N/I:C/A:N
CVSS Score Source: CVE-2023-48795
CVSS v3
Risk Factor: Medium
Base Score: 5.9
Temporal Score: 5.3
Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N
Temporal Vector: CVSS:3.0/E:P/RL:O/RC:C
CVSS v4
Risk Factor: Medium
Base Score: 6
Threat Score: 5.3
Threat Vector: CVSS:4.0/E:P
Vector: CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:P/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N
Vulnerability Information
Exploit Available: true
Exploit Ease: Exploits are available
Vulnerability Publication Date: 6/13/2023
Reference Information
CVE: CVE-2023-48795, CVE-2023-6004, CVE-2023-6918
IAVA: 2023-A-0703