CVE-2012-0920

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Summary

CVECVE-2012-0920
StatePUBLISHED
Assignermitre
Source PriorityCVE Program / NVD first with legacy fallback
Published2012-06-05 22:55:09 UTC
Updated2026-04-29 01:13:23 UTC
DescriptionUse-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."

Risk And Classification

Primary CVSS: v2.0 7.1 from [email protected]

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

Problem Types: CWE-399 | n/a

CVSS v2.0 Breakdown

Access Vector
Network
Access Complexity
High
Authentication
Single
Confidentiality
Complete
Integrity
Complete
Availability
Complete

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

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Operating System Debian Debian Linux 6.0 All All All
Operating System Debian Debian Linux 7.0 All All All
Application Dropbear Ssh Project Dropbear Ssh All All All All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Na N/a affected n/a Not specified

References

ReferenceSourceLinkTags
Debian -- Security Information -- DSA-2456-1 dropbear af854a3a-2127-422b-91ae-364da2661108 www.debian.org Third Party Advisory
matt.ucc.asn.au/dropbear/CHANGES af854a3a-2127-422b-91ae-364da2661108 matt.ucc.asn.au Vendor Advisory
dropbear: 818108bf7749 af854a3a-2127-422b-91ae-364da2661108 secure.ucc.asn.au Vendor Advisory
CVE-2012-0920 - Dropbear SSH server use-after-free vulnerability af854a3a-2127-422b-91ae-364da2661108 www.mantor.org Third Party Advisory
IBM X-Force Exchange af854a3a-2127-422b-91ae-364da2661108 exchange.xforce.ibmcloud.com Third Party Advisory, VDB Entry
About Secunia Research | Flexera af854a3a-2127-422b-91ae-364da2661108 secunia.com Third Party Advisory
About Secunia Research | Flexera af854a3a-2127-422b-91ae-364da2661108 secunia.com Third Party Advisory
www.osvdb.org/79590 af854a3a-2127-422b-91ae-364da2661108 www.osvdb.org Broken Link
Dropbear SSH Server Use After Free Remote Code Execution Vulnerability af854a3a-2127-422b-91ae-364da2661108 www.securityfocus.com Third Party Advisory, VDB Entry
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis
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