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CVE-2012-0920

Date: June 5, 2012

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."

Language: C

Severity Score

Related Resources (13)

https://nvd.nist.gov/vuln/detail/CVE-2012-0920
http://matt.ucc.asn.au/dropbear/CHANGES
https://www.mantor.org/~northox/misc/CVE-2012-0920.html
https://exchange.xforce.ibmcloud.com/vulnerabilities/73444
http://www.securityfocus.com/bid/52159
http://secunia.com/advisories/48929
https://people.canonical.com/~ubuntu-security/cve/CVE-2012-0920
http://www.debian.org/security/2012/dsa-2456
http://www.osvdb.org/79590
https://secure.ucc.asn.au/hg/dropbear/rev/818108bf7749
http://secunia.com/advisories/48147
https://security-tracker.debian.org/tracker/CVE-2012-0920
https://www.mend.io/vulnerability-database/CVE-2012-0920

Severity Score

Weakness Type (CWE)

Resource Management Errors

CWE-399

CVSS v3.1

Base Score:
Attack Vector (AV): NETWORK
Attack Complexity (AC): HIGH
Privileges Required (PR): LOW
User Interaction (UI): NONE
Scope (S): UNCHANGED
Confidentiality (C): HIGH
Integrity (I): HIGH
Availability (A): HIGH

CVSS v2

Base Score:
Access Vector (AV): NETWORK
Access Complexity (AC): HIGH
Authentication (AU): SINGLE
Confidentiality (C): COMPLETE
Integrity (I): COMPLETE
Availability (A): COMPLETE
Additional information:

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