[Debian] Medium CVE: CVE-2023-6004/CVE-2023-6918/CVE-2023-48795 libssh : multiple CVEs

[Yue Tao]

CVE-2023-6004: https://nvd.nist.gov/vuln/detail/CVE-2023-6004

None

CVE-2023-6918: https://nvd.nist.gov/vuln/detail/CVE-2023-6918

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-2023-48795: https://nvd.nist.gov/vuln/detail/CVE-2023-48795

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 address hidden> and (if CBC is used) the -<email address hidden> 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.

Base Score: Medium

Reference:

['libssh-dev_0.9.7-0+deb11u1_amd64.deb===>libssh-dev_0.9.8-0+deb11u1_amd64.deb', 'libssh-4_0.9.7-0+deb11u1_amd64.deb===>libssh-4_0.9.8-0+deb11u1_amd64.deb']
https://security-tracker.debian.org/tracker/DSA-5591-1

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.opendev.org/c/starlingx/tools/+/904481

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.opendev.org/c/starlingx/tools/+/904481
Committed: https://opendev.org/starlingx/tools/commit/29ec4cfeaa483e2d0153d612e59589d72f187276
Submitter: "Zuul (22348)"
Branch: master

commit 29ec4cfeaa483e2d0153d612e59589d72f187276
Author: Zhixiong Chi <email address hidden>
Date: Thu Dec 28 18:54:16 2023 -0800

    libssh: Upgrade to 0.9.8-0+deb11u1

    Upgrade libssh-4 and libssh-dev to 0.9.8-0+deb11u1 to fix the CVE
    issues CVE-2023-6004/CVE-2023-6918/CVE-2023-48795

    Refer to:
    https://security-tracker.debian.org/tracker/DSA-5591-1
    https://nvd.nist.gov/vuln/detail/CVE-2023-6004
    https://nvd.nist.gov/vuln/detail/CVE-2023-6918
    https://nvd.nist.gov/vuln/detail/CVE-2023-48795

    Closes-Bug: 2047673

    Change-Id: I03397c7ca51e569b12387c8f86f79dbe0781a1df
    Signed-off-by: Zhixiong Chi <email address hidden>