Denial of Service Vulnerability in libssh 0.5.3 and Earlier

CVE-2012-4561 · MEDIUM Severity

AV:N/AC:L/AU:N/C:N/I:N/A:P

The (1) publickey_make_dss, (2) publickey_make_rsa, (3) signature_from_string, (4) ssh_do_sign, and (5) ssh_sign_session_id functions in keys.c in libssh before 0.5.3 free "an invalid pointer on an error path," which might allow remote attackers to cause a denial of service (crash) via unspecified vectors.

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