VULNERABILITY INTELLIGENCE

CVE-2013-4548

CVSS score6 MEDIUM
EPSS probability2.67%
CISA KEVNot currently listed
Published2013-11-08
Last modified2026-06-16
CVSS vectorAV:N/AC:M/Au:S/C:P/I:P/A:P

Description

The mm_newkeys_from_blob function in monitor_wrap.c in sshd in OpenSSH 6.2 and 6.3, when an AES-GCM cipher is used, does not properly initialize memory for a MAC context data structure, which allows remote authenticated users to bypass intended ForceCommand and login-shell restrictions via packet data that provides a crafted callback address.

Primary references