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Ubuntu: USN-3515-1 (CVE-2017-17405): Ruby vulnerability

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Ubuntu: USN-3515-1 (CVE-2017-17405): Ruby vulnerability

Severity
9
CVSS
(AV:N/AC:M/Au:N/C:C/I:C/A:C)
Published
12/15/2017
Created
07/25/2018
Added
01/04/2018
Modified
03/02/2020

Description

Ruby before 2.4.3 allows Net::FTP command injection. Net::FTP#get, getbinaryfile, gettextfile, put, putbinaryfile, and puttextfile use Kernel#open to open a local file. If the localfile argument starts with the "|" pipe character, the command following the pipe character is executed. The default value of localfile is File.basename(remotefile), so malicious FTP servers could cause arbitrary command execution.

Solution(s)

  • ubuntu-upgrade-libruby1-9-1
  • ubuntu-upgrade-libruby2-0
  • ubuntu-upgrade-libruby2-3
  • ubuntu-upgrade-ruby1-9-1
  • ubuntu-upgrade-ruby1-9-3
  • ubuntu-upgrade-ruby2-0
  • ubuntu-upgrade-ruby2-3

References

  • USN-3515-1
  • DSA-4259
  • CVE-2017-17405

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