CVE-2013-4548
Published Nov 8, 2013
Last updated 5 years ago
Overview
- 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.
- Source
- secalert@redhat.com
- NVD status
- Modified
Social media
- Hype score
- Not currently trending
Risk scores
CVSS 2.0
- Type
- Primary
- Base score
- 6
- Impact score
- 6.4
- Exploitability score
- 6.8
- Vector string
- AV:N/AC:M/Au:S/C:P/I:P/A:P
Weaknesses
- nvd@nist.gov
- CWE-264
Configurations
[
{
"nodes": [
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:a:openbsd:openssh:6.2:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "39D1E296-3040-4CC9-B95B-3E07D73F1150"
},
{
"criteria": "cpe:2.3:a:openbsd:openssh:6.3:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "FCEE2677-16EE-484F-B2FB-FCA377E0D76B"
}
],
"operator": "OR"
}
]
}
]