CVE-2012-0920

    Dashboard / Vulnerabilities / CVE-2012-0920

    CVE-2012-0920

    Published: 5 Jun 2012Last Modified: 10 Apr 2026

    Summary:

    Details: 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."

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

    Affected packages

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High