libssh: libssh: Denial of Service via zero-length input in ssh_get_hexa()

A flaw was found in libssh. The API function sshgethexa is vulnerable to a denial of service when processing zero-length input. This can be exploited remotely by an attacker during GSSAPI Generic Security Service Application Program Interface authentication if the server's logging verbosity is se...

CLSA-2026-1778003336 Fix CVE(s): CVE-2026-0966

SECURITY UPDATE: heap buffer underflow in sshgethexa when called with a NULL pointer or zero-length input - debian/patches/CVE-2026-0966.patch: add NULL/zero-length input validation in sshgethexa; add unit-test coverage - CVE-2026-0966...

CLSA-2026-1778003186 libssh: Fix of CVE-2026-0966

CVE-2026-0966: fix heap buffer underflow in sshgethexa on NULL or zero-length input, remotely reachable via GSSAPI authentication logging...

The vulnerability of the ssh_get_hexa() function in the application programming interface of the libssh library, which allows a hacker to cause a service failure

The vulnerability of the sshgethexa function in the application programming interface of the libssh library is related to a breach of the buffer boundary. Exploiting this vulnerability could allow an attacker, operating remotely, to cause service failures...

libssh: libssh: Denial of Service via zero-length input in ssh_get_hexa()

A flaw was found in libssh. The API function sshgethexa is vulnerable to a denial of service when processing zero-length input. This can be exploited remotely by an attacker during GSSAPI Generic Security Service Application Program Interface authentication if the server's logging verbosity is se...