CVE-2012-0920

Use-after-free vulnerability in Dropbear SSH Server 0.52 through 2012.54, when command restriction and public key authentication are enabled, allows remote authenticated users to execute arbitrary code and bypass command restrictions via multiple crafted command requests, related to "channels concurrency."

CVSS v2.0 7.1 HIGH

7.1^/10

CVSS v2.0 : HIGH

Vector : AV:N/AC:H/Au:S/C:C/I:C/A:C

Exploitability : 3.9 / Impact : 10.0

Access Vector NETWORK

Access Complexity HIGH

Authentication SINGLE

Confidentiality Impact COMPLETE

Integrity Impact COMPLETE

Availability Impact COMPLETE

References

Link	Resource
http://matt.ucc.asn.au/dropbear/CHANGES	Vendor Advisory
http://secunia.com/advisories/48147	Third Party Advisory
http://secunia.com/advisories/48929	Third Party Advisory
http://www.debian.org/security/2012/dsa-2456	Third Party Advisory
http://www.osvdb.org/79590	Broken Link
http://www.securityfocus.com/bid/52159	Third Party Advisory VDB Entry
https://exchange.xforce.ibmcloud.com/vulnerabilities/73444	Third Party Advisory VDB Entry
https://secure.ucc.asn.au/hg/dropbear/rev/818108bf7749	Vendor Advisory
https://www.mantor.org/~northox/misc/CVE-2012-0920.html	Third Party Advisory
http://matt.ucc.asn.au/dropbear/CHANGES	Vendor Advisory
http://secunia.com/advisories/48147	Third Party Advisory
http://secunia.com/advisories/48929	Third Party Advisory
http://www.debian.org/security/2012/dsa-2456	Third Party Advisory
http://www.osvdb.org/79590	Broken Link
http://www.securityfocus.com/bid/52159	Third Party Advisory VDB Entry
https://exchange.xforce.ibmcloud.com/vulnerabilities/73444	Third Party Advisory VDB Entry
https://secure.ucc.asn.au/hg/dropbear/rev/818108bf7749	Vendor Advisory
https://www.mantor.org/~northox/misc/CVE-2012-0920.html	Third Party Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:dropbear_ssh_project:dropbear_ssh:*:*:*:*:*:*:*:*

Configuration 2 (hide)

OR	cpe:2.3:o:debian:debian_linux:6.0:::::::*
	cpe:2.3:o:debian:debian_linux:7.0:::::::*

History

No history.

Information

Published : 2012-06-05 22:55

Updated : 2025-04-11 00:51

NVD link : CVE-2012-0920

Mitre link : CVE-2012-0920

CVE.ORG link : CVE-2012-0920

JSON object : View

Products Affected

dropbear_ssh_project

dropbear_ssh

debian

debian_linux

CWE

CWE-399

Resource Management Errors

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