Vulnerability CVE-2018-8778: Information

Description

In Ruby before 2.2.10, 2.3.x before 2.3.7, 2.4.x before 2.4.4, 2.5.x before 2.5.1, and 2.6.0-preview1, an attacker controlling the unpacking format (similar to format string vulnerabilities) can trigger a buffer under-read in the String#unpack method, resulting in a massive and controlled information disclosure.

Severity: HIGH (7.5) Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Published: April 4, 2018
Modified: Oct. 3, 2019
Error type identifier: CWE-134

Fixed packages

References to Advisories, Solutions, and Tools

    1. Configuration 1

      cpe:2.3:a:ruby-lang:ruby:*:*:*:*:*:*:*:*
      Start including
      2.3.0
      End excliding
      2.3.7

      cpe:2.3:a:ruby-lang:ruby:*:*:*:*:*:*:*:*
      Start including
      2.4.0
      End excliding
      2.4.4

      cpe:2.3:a:ruby-lang:ruby:*:*:*:*:*:*:*:*
      Start including
      2.5.0
      End excliding
      2.5.1

      cpe:2.3:a:ruby-lang:ruby:2.6.0:preview1:*:*:*:*:*:*

      cpe:2.3:a:ruby-lang:ruby:*:*:*:*:*:*:*:*
      Start including
      2.2.0
      End excliding
      2.2.10

      Configuration 2

      cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:*

      cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:lts:*:*:*

      cpe:2.3:o:canonical:ubuntu_linux:17.10:*:*:*:*:*:*:*

      Configuration 3

      cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*

      cpe:2.3:o:debian:debian_linux:7.0:*:*:*:*:*:*:*

      cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*

      Configuration 4

      cpe:2.3:o:redhat:enterprise_linux:7.4:*:*:*:*:*:*:*

      cpe:2.3:o:redhat:enterprise_linux:7.0:*:*:*:*:*:*:*

      cpe:2.3:o:redhat:enterprise_linux:6.0:*:*:*:*:*:*:*

      cpe:2.3:o:redhat:enterprise_linux:7.5:*:*:*:*:*:*:*

      cpe:2.3:o:redhat:enterprise_linux:7.6:*:*:*:*:*:*:*