VULNERABILITY INTELLIGENCE
CVE-2012-4561
CVSS score5 MEDIUM
EPSS probability4.75%
CISA KEVNot currently listed
Published2012-11-30
Last modified2026-06-16
CVSS vectorAV:N/AC:L/Au:N/C:N/I:N/A:P
Description
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.