1981 matches found
Security update for libssh
This update for libssh fixes the following issues: CVE-2026-59843: denial of service via zero advertised channel packet size bsc1272164. CVE-2026-59844: denial of service via oversized SFTP read length bsc1272165. CVE-2026-59845: denial of service via unchecked ProxyCommand fork failure bsc127216...
libssh-config-0.11.5-1.1 on GA media (moderate)
libssh-config-0.11.5-1.1 on GA media Announcement ID: openSUSE-SU-2026:11377-1 Rating: moderate Cross-References: CVE-2026-15370 CVE-2026-59843 CVE-2026-59844 CVE-2026-59845 CVE-2026-59846 CVE-2026-59847 CVE-2026-59848 CVE-2026-59849 CVE-2026-59850 CVSS scores: CVE-2026-15370 SUSE : 6.7...
JLSEC-2026-783
A flaw was found in libssh in which a malicious SFTP SSH File Transfer Protocol server can exploit this by sending a malformed 'longname' field within an SSHFXPNAME message during a file listing operation. This missing null check can lead to reading beyond allocated memory on the heap. This can...
JLSEC-2026-778
A flaw was found in libssh. This vulnerability allows local man-in-the-middle attacks, security downgrades of SSH Secure Shell connections, and manipulation of trusted host information, posing a significant risk to the confidentiality, integrity, and availability of SSH communications via an...
JLSEC-2026-782
A flaw was found in libssh. A remote attacker, by controlling client configuration files or knownhosts files, could craft specific hostnames that when processed by the matchpattern function can lead to inefficient regular expression backtracking. This can cause timeouts and resource exhaustion,...
SUSE CVE-2026-59842
A flaw was found in libssh. During server-side GSSAPI key exchange, a client-supplied Curve25519 public key shorter than the expected length is copied without proper length validation, leading to an out-of-bounds heap read. This could allow a remote unauthenticated attacker to disclose small...
SUSE CVE-2026-59843
A flaw was found in libssh. A remote authenticated peer can advertise a zero maximum packet size in SSHMSGCHANNELOPEN, causing later channel writes to loop indefinitely and consume CPU, leading to denial of service...
SUSE CVE-2026-59844
A flaw was found in libssh. A remote authenticated client can issue SSHFXPREAD requests with an arbitrarily large length, causing a libssh SFTP server to allocate excessive memory and potentially exhaust it through repeated requests...
SUSE CVE-2026-59845
A flaw was found in libssh. When ProxyCommand is used, an unchecked fork failure can be stored as process ID -1; during cleanup, signals may then be sent across the caller's accessible process tree, leading to local denial of service...
SUSE CVE-2026-59847
A flaw was found in libssh. Incorrect AES-GCM finalization checks in builds using the OpenSSL backend can effectively remove integrity protection, allowing an in-path attacker to modify plaintext on the wire without detection...
SUSE CVE-2026-59848
A flaw was found in libssh. A malicious SFTP server can send responses for unknown request IDs that libssh clients keep queued indefinitely, causing unbounded memory growth and client-side denial of service...
SUSE CVE-2026-59850
A flaw was found in libssh. If data packets are processed after a channel is closed, channel data callbacks can be invoked after the associated data has already been freed, leading to crashes or possible use-after-free conditions...
SUSE CVE-2026-59851
A flaw was found in libssh. On servers with GSSAPIKeyExchange enabled, the gssapi-keyex path does not verify whether the authenticated Kerberos principal is authorized for the requested local user, allowing authenticated clients to log in as arbitrary users...
UBUNTU-CVE-2026-59848
A flaw was found in libssh. A malicious SFTP server can send responses...
UBUNTU-CVE-2026-59851
A flaw was found in libssh. On servers with GSSAPIKeyExchange enabled,...
UBUNTU-CVE-2026-59842
A flaw was found in libssh. During server-side GSSAPI key exchange, a...
UBUNTU-CVE-2026-59846
A flaw was found in libssh. A malicious username expanded through %r i...
Slackware Linux 15.0 / current libssh Multiple Vulnerabilities (SSA:2026-202-01)
The version of libssh installed on the remote host is prior to 0.11.5 / 0.12.1. It is, therefore, affected by multiple vulnerabilities as referenced in the SSA:2026-202-01 advisory. New libssh packages are available for Slackware 15.0 and -current to fix security issues. Tenable has extracted the...