Dropbear SSH Server code execution
|dropbear-code-execution (73444)||High Risk|
Dropbear SSH Server could allow a remote authenticated attacker to execute arbitrary code on the system, caused by a use-after-free error. If a command restriction is enforced, an attacker could exploit this vulnerability to execute arbitrary code on the system with root privileges.
Upgrade to the latest version of Dropbear SSH Server (2012.55 or later), available from the Dropbear Web page. See References.
- Dropbear Web page: changeset 654:818108bf7749 .
- BID-52159: Dropbear SSH Server Use After Free Remote Code Execution Vulnerability
- 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.
- DSA-2456: dropbear -- use after free
- OSVDB ID: 79590: Dropbear SSH Server Channel Concurrency Use-after-free Remote Code Execution
- SA48147: Dropbear SSH Server Use-After-Free Vulnerability
- Matt Johnston Dropbear SSH Server 0.52
- Matt Johnston Dropbear SSH Server 2011.54
Feb 24, 2012
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The information within this database may change without notice. Use of this information constitutes acceptance for use in an AS IS condition. There are NO warranties, implied or otherwise, with regard to this information or its use. Any use of this information is at the user's risk. In no event shall IBM be held liable for any damages whatsoever arising out of or in connection with the use or spread of this information.