CVE-2020-16135
libssh 0.9.4 has a NULL pointer dereference in tftpserver.c if ssh_buffer_new returns NULL.
- Update to 0.6.3-4.3ubuntu0.6
Published Updated
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libssh vulnerabilities
Vulnerabilities published for libssh in the last 30 days: 0. Listed in the KEV catalogue: 0.
Vulnerabilities: 5
CVE-2019-14889
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 server-side. In case the library is used in a way where users can influence the third parameter of the function, it would become possible for an attacker to inject arbitrary commands, leading to a compromise of the remote target.
- Update to 0.6.3-4.3ubuntu0.5
Published Updatedlibssh regression
USN-3795-1 and USN-3795-2 fixed a vulnerability in libssh. The upstream fix introduced a regression. This update fixes the problem. Original advisory details: Peter Winter-Smith discovered that libssh incorrectly handled authentication when being used as a server. A remote attacker could use this issue to bypass authentication without any credentials.
- Update to 0.6.3-4.3ubuntu0.2
Published UpdatedCVE-2018-10933
A vulnerability was found in libssh's server-side state machine before versions 0.7.6 and 0.8.4. A malicious client could create channels without first performing authentication, resulting in unauthorized access.
- Update to 0.6.3-4.3ubuntu0.1
Published UpdatedCVE-2016-0739
libssh before 0.7.3 improperly truncates ephemeral secrets generated for the (1) diffie-hellman-group1 and (2) diffie-hellman-group14 key exchange methods to 128 bits, which makes it easier for man-in-the-middle attackers to decrypt or intercept SSH sessions via unspecified vectors, aka a "bits/bytes confusion bug."
- Update to 0.6.3-4.2ubuntu1
Published Updated
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