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CVE-2021-3634

Medium priority
Fixed

A flaw has been found in libssh in versions prior to 0.9.6. The SSH protocol keeps track of two shared secrets during the lifetime of the session. One of them is called secret_hash and the other session_id. Initially, both of them...

1 affected package

libssh

Package 26.04 LTS 24.04 LTS 22.04 LTS 20.04 LTS 18.04 LTS
libssh Fixed Fixed Not affected
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CVE-2020-16135

Medium priority
Fixed

libssh 0.9.4 has a NULL pointer dereference in tftpserver.c if ssh_buffer_new returns NULL.

1 affected package

libssh

Package 26.04 LTS 24.04 LTS 22.04 LTS 20.04 LTS 18.04 LTS
libssh Fixed Fixed
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CVE-2020-1730

Medium priority
Fixed

A flaw was found in libssh versions before 0.8.9 and before 0.9.4 in the way it handled AES-CTR (or DES ciphers if enabled) ciphers. The server or client could crash when the connection hasn't been fully initialized and the system...

1 affected package

libssh

Package 26.04 LTS 24.04 LTS 22.04 LTS 20.04 LTS 18.04 LTS
libssh Fixed
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CVE-2019-14889

Medium priority
Fixed

A flaw was found with the libssh API function ssh_scp_new() in versions before 0.9.3 and before 0.8.8. When the libssh SCP client connects to a server, the scp command, which includes a user-provided path, is executed on the...

1 affected package

libssh

Package 26.04 LTS 24.04 LTS 22.04 LTS 20.04 LTS 18.04 LTS
libssh Fixed
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CVE-2019-17498

Medium priority

Some fixes available 2 of 7

In libssh2 v1.9.0 and earlier versions, the SSH_MSG_DISCONNECT logic in packet.c has an integer overflow in a bounds check, enabling an attacker to specify an arbitrary (out-of-bounds) offset for a subsequent memory read....

1 affected package

libssh2

Package 26.04 LTS 24.04 LTS 22.04 LTS 20.04 LTS 18.04 LTS
libssh2 Not affected Not affected Not affected Vulnerable Vulnerable
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CVE-2019-13115

Medium priority

Some fixes available 2 of 8

In libssh2 before 1.9.0, kex_method_diffie_hellman_group_exchange_sha256_key_exchange in kex.c has an integer overflow that could lead to an out-of-bounds read in the way packets are read from the server. A remote attacker who...

1 affected package

libssh2

Package 26.04 LTS 24.04 LTS 22.04 LTS 20.04 LTS 18.04 LTS
libssh2 Not affected Not affected Not affected Vulnerable Vulnerable
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CVE-2019-3861

Medium priority

Some fixes available 2 of 4

An out of bounds read flaw was discovered in libssh2 before 1.8.1 in the way SSH packets with a padding length value greater than the packet length are parsed. A remote attacker who compromises a SSH server may be able to cause a...

1 affected package

libssh2

Package 26.04 LTS 24.04 LTS 22.04 LTS 20.04 LTS 18.04 LTS
libssh2 Not affected Not affected Not affected Not affected Vulnerable
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CVE-2019-3860

Medium priority

Some fixes available 2 of 4

An out of bounds read flaw was discovered in libssh2 before 1.8.1 in the way SFTP packets with empty payloads are parsed. A remote attacker who compromises a SSH server may be able to cause a Denial of Service or read data in the...

1 affected package

libssh2

Package 26.04 LTS 24.04 LTS 22.04 LTS 20.04 LTS 18.04 LTS
libssh2 Not affected Not affected Not affected Not affected Vulnerable
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CVE-2019-3857

Medium priority

Some fixes available 2 of 4

An integer overflow flaw which could lead to an out of bounds write was discovered in libssh2 before 1.8.1 in the way SSH_MSG_CHANNEL_REQUEST packets with an exit signal are parsed. A remote attacker who compromises a SSH server...

1 affected package

libssh2

Package 26.04 LTS 24.04 LTS 22.04 LTS 20.04 LTS 18.04 LTS
libssh2 Not affected Not affected Not affected Not affected Vulnerable
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CVE-2019-3856

Medium priority

Some fixes available 2 of 4

An integer overflow flaw, which could lead to an out of bounds write, was discovered in libssh2 before 1.8.1 in the way keyboard prompt requests are parsed. A remote attacker who compromises a SSH server may be able to execute...

1 affected package

libssh2

Package 26.04 LTS 24.04 LTS 22.04 LTS 20.04 LTS 18.04 LTS
libssh2 Not affected Not affected Not affected Not affected Vulnerable
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