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4 CVE
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CVE-2026-59849 7.5 Élevée
Red Hat Enterprise Linux 10 · Red Hat Hardened Images · Red Hat Enterprise Linux 8 · Red Hat Enterprise Linux 9
A flaw was found in libssh. Logic errors in automatic certificate-based public key authentication can cause libssh clients to loop indefinitely when configured certificates are missing or repeatedly rejected by a server, leading to denial of service.
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CVE-2026-59842 5.3 Moyenne
Red Hat Enterprise Linux 10 · Red Hat Hardened Images · Red Hat Enterprise Linux 8 · Red Hat Enterprise Linux 9
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 amounts of server memory.
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CVE-2026-15370 7.3 Élevée
Red Hat Enterprise Linux 10 · Red Hat Hardened Images · Red Hat Enterprise Linux 8 · Red Hat Enterprise Linux 9
A flaw was found in libssh. During SFTP server directory listing, the longname field is constructed with unsafe concatenation into a fixed-size stack buffer. When a client causes the server to list attacker-controlled filenames, sufficiently long names can overflow that stack buffer and may lead to crashes or possible code execution on the server.
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CVE-2023-6915 5.5 Moyenne
Red Hat Enterprise Linux 8 · Red Hat Enterprise Linux 9 · Red Hat Enterprise Linux 6 · Red Hat Enterprise Linux 7
A Null pointer dereference problem was found in ida_free in lib/idr.c in the Linux Kernel. This issue may allow an attacker using this library to cause a denial of service problem due to a missing check at a function return.