CVE-2013-4548

MediumCVSS 6.0/10Last modified Jun 16, 2026

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.

Metrics

CVSS 2.0 6.0/10AV:N/AC:M/Au:S/C:P/I:P/A:P

Weakness enumeration

CWE-264

Affected software

Vendor	Product	Versions
n/a	n/a	n/a

References

Timeline

Published: Nov 8, 2013
Last modified: Jun 16, 2026
NVD status: Modified

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