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CVE-2018-8778

Publication date 3 April 2018

Last updated 24 July 2024

Ubuntu priority

Medium

Why this priority?

Cvss 3 Severity Score

7.5 · High

Score breakdown

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.

Status

Package Ubuntu Release Status
ruby1.9.1 18.04 LTS bionic Not in release
17.10 artful Not in release
16.04 LTS xenial Not in release
14.04 LTS trusty
Fixed 1.9.3.484-2ubuntu1.11
ruby2.0 18.04 LTS bionic Not in release
17.10 artful Not in release
16.04 LTS xenial Not in release
14.04 LTS trusty
Fixed 2.0.0.484-1ubuntu2.9
ruby2.3 18.04 LTS bionic Not in release
17.10 artful
Fixed 2.3.3-1ubuntu1.5
16.04 LTS xenial
Fixed 2.3.1-2~16.04.9
14.04 LTS trusty Not in release
ruby2.5 18.04 LTS bionic
Fixed 2.5.1-1
17.10 artful Not in release
16.04 LTS xenial Not in release
14.04 LTS trusty Not in release

Severity score breakdown

Parameter Value
Base score 7.5 · High
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Scope Unchanged
Confidentiality High
Integrity impact None
Availability impact None
Vector CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N