Published:2011/01/18  Last Updated:2011/01/18

Ruby Version Manager escape sequence injection vulnerability


Ruby Version Manager contains an escape sequence injection vulnerability.

Products Affected

  • Ruby Version Manager prior to 1.2.1


Ruby Version Manager is a command line tool for managing multiple ruby environments. Ruby Version Manager contains an escape sequence injection vulnerability.


A user may unknowingly open a malicious file. As a result, the string that is output on the terminal may contain an arbitrary escape sequence.


Update the software
Update to the latest version according to the information provided by the developer.

Vendor Status

Vendor Link
Ruby Version Manager (RVM) Ruby Version Manager (RVM)


JPCERT/CC Addendum

Vulnerability Analysis by JPCERT/CC

Analyzed on 2011.01.18

Measures Conditions Severity
Access Required can be attacked over the Internet using packets
  • High
Authentication anonymous or no authentication (IP addresses do not count)
  • High
User Interaction Required the user must be convinced to take a standard action that does not feel harmful to most users, such as click on a link or view a file
  • Mid
Exploit Complexity expertise and/or luck required (guessing correctly in medium-sized space, kernel expertise)
  • Low-Mid

Description of each analysis measures


Other Information

JPCERT Reports
CERT Advisory
CPNI Advisory
CVE CVE-2010-3928
JVN iPedia JVNDB-2011-000005