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CVE-2012-0920 Details

Description

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."

Metrics

CVSS 3.x Severity and Vector Strings:

No CVSS 3.x data is available for this CVE.

References to Advisories, Solutions, and Tools

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

see all 18 references

Weakness Enumeration

CWE-ID	CWE Name	Source
CWE-399	Resource Management Errors	[email protected]

Affected Products

Product	Versions
dropbear ssh project dropbear ssh	>= 0.52, <= 2012.54
CPE cpe:2.3:a:dropbear_ssh_project:dropbear_ssh:::::::: Remediation No remediation found in references.
debian debian linux	6.0 7.0
CPE cpe:2.3:o:debian:debian_linux:6.0:::::::* cpe:2.3:o:debian:debian_linux:7.0:::::::* Remediation No remediation found in references.

Change History

7 change records found show changes

Date	Action	Recorded By
Jun 16, 2026	CVE Modified	[email protected]
Apr 29, 2026	Status Change	[email protected]
Nov 21, 2024	CVE Modified	CVE
May 14, 2024	CVE Modified	[email protected]
Sep 20, 2018	Modified Analysis	[email protected]
Aug 29, 2017	CVE Modified	[email protected]
Jun 6, 2012	Initial Analysis	[email protected]