SUSE-SU-2024:0539-1

    Dashboard / Vulnerabilities / SUSE-SU-2024:0539-1

    SUSE-SU-2024:0539-1

    Published: 20 Feb 2024Last Modified: 4 Feb 2026

    Summary: Security update for libssh

    Details: This update for libssh fixes the following issues: Update to version 0.9.8 (jsc#PED-7719): * Fix CVE-2023-6004: Command injection using proxycommand (bsc#1218209) * Fix CVE-2023-48795: Potential downgrade attack using strict kex (bsc#1218126) * Fix CVE-2023-6918: Missing checks for return values of MD functions (bsc#1218186) * Allow @ in usernames when parsing from URI composes Update to version 0.9.7 * Fix CVE-2023-1667: a NULL dereference during rekeying with algorithm guessing (bsc#1211188) * Fix CVE-2023-2283: a possible authorization bypass in pki_verify_data_signature under low-memory conditions (bsc#1211190) * Fix several memory leaks in GSSAPI handling code Update to version 0.9.6 (bsc#1189608, CVE-2021-3634) * https://git.libssh.org/projects/libssh.git/tag/?h=libssh-0.9.6 Update to version 0.9.5 (bsc#1174713, CVE-2020-16135): * CVE-2020-16135: Avoid null pointer dereference in sftpserver (T232) * Improve handling of library initialization (T222) * Fix parsing of subsecond times in SFTP (T219) * Make the documentation reproducible * Remove deprecated API usage in OpenSSL * Fix regression of ssh_channel_poll_timeout() returning SSH_AGAIN * Define version in one place (T226) * Prevent invalid free when using different C runtimes than OpenSSL (T229) * Compatibility improvements to testsuite Update to version 0.9.4: * https://www.libssh.org/2020/04/09/libssh-0-9-4-and-libssh-0-8-9-security-release/ * Fix possible Denial of Service attack when using AES-CTR-ciphers CVE-2020-1730 (bsc#1168699) Update to version 0.9.3: * Fixed CVE-2019-14889 - SCP: Unsanitized location leads to command execution (bsc#1158095) * SSH-01-003 Client: Missing NULL check leads to crash in erroneous state * SSH-01-006 General: Various unchecked Null-derefs cause DOS * SSH-01-007 PKI Gcrypt: Potential UAF/double free with RSA pubkeys * SSH-01-010 SSH: Deprecated hash function in fingerprinting * SSH-01-013 Conf-Parsing: Recursive wildcards in hostnames lead to DOS * SSH-01-014 Conf-Parsing: Integer underflow leads to OOB array access * SSH-01-001 State Machine: Initial machine states should be set explicitly * SSH-01-002 Kex: Differently bound macros used to iterate same array * SSH-01-005 Code-Quality: Integer sign confusion during assignments * SSH-01-008 SCP: Protocol Injection via unescaped File Names * SSH-01-009 SSH: Update documentation which RFCs are implemented * SSH-01-012 PKI: Information leak via uninitialized stack buffer Update to version 0.9.2: * Fixed libssh-config.cmake * Fixed issues with rsa algorithm negotiation (T191) * Fixed detection of OpenSSL ed25519 support (T197) Update to version 0.9.1: * Added support for Ed25519 via OpenSSL * Added support for X25519 via OpenSSL * Added support for localuser in Match keyword * Fixed Match keyword to be case sensitive * Fixed compilation with LibreSSL * Fixed error report of channel open (T75) * Fixed sftp documentation (T137) * Fixed known_hosts parsing (T156) * Fixed build issue with MinGW (T157) * Fixed build with gcc 9 (T164) * Fixed deprecation issues (T165) * Fixed known_hosts directory creation (T166) Update to verion 0.9.0: * Added support for AES-GCM * Added improved rekeying support * Added performance improvements * Disabled blowfish support by default * Fixed several ssh config parsing issues * Added support for DH Group Exchange KEX * Added support for Encrypt-then-MAC mode * Added support for parsing server side configuration file * Added support for ECDSA/Ed25519 certificates * Added FIPS 140-2 compatibility * Improved known_hosts parsing * Improved documentation * Improved OpenSSL API usage for KEX, DH, and signatures - Add libssh client and server config files

    References: https://www.suse.com/support/update/announcement/2024/suse-su-20240539-1/, https://bugzilla.suse.com/1158095, https://bugzilla.suse.com/1168699, https://bugzilla.suse.com/1174713, https://bugzilla.suse.com/1189608, https://bugzilla.suse.com/1211188, https://bugzilla.suse.com/1211190, https://bugzilla.suse.com/1218126, https://bugzilla.suse.com/1218186, https://bugzilla.suse.com/1218209, https://www.suse.com/security/cve/CVE-2019-14889, https://www.suse.com/security/cve/CVE-2020-16135, https://www.suse.com/security/cve/CVE-2020-1730, https://www.suse.com/security/cve/CVE-2021-3634, https://www.suse.com/security/cve/CVE-2023-1667, https://www.suse.com/security/cve/CVE-2023-2283, https://www.suse.com/security/cve/CVE-2023-48795, https://www.suse.com/security/cve/CVE-2023-6004, https://www.suse.com/security/cve/CVE-2023-6918

    Affected packages

    Package

    Name: libssh

    Purl: pkg:rpm/suse/libssh&distro=SUSE%20Linux%20Enterprise%20Software%20Development%20Kit%2012%20SP5

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -0.9.8-3.12.2

    Affected versions

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High
    SUSE-SU-2024:0539-1 | CVE-DB