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...

libssh Heap Buffer Overflow DoS

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...