CVE-2018-8778

2018-04-0322:29:00

Alpine Linux Development Team

security.alpinelinux.org

5 Medium

CVSS2

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

NONE

Availability Impact

NONE

AV:N/AC:L/Au:N/C:P/I:N/A:N

7.5 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

NONE

Availability Impact

NONE

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

7.2 High

AI Score

Confidence

Low

0.004 Low

EPSS

Percentile

74.3%

JSON

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.

OSVersionArchitecturePackageVersionFilename
Alpineedge-mainnoarchruby< 2.5.1-r0UNKNOWN
Alpine3.10-mainnoarchruby< 2.5.1-r0UNKNOWN
Alpine3.11-mainnoarchruby< 2.5.1-r0UNKNOWN
Alpine3.12-mainnoarchruby< 2.5.1-r0UNKNOWN
Alpine3.13-mainnoarchruby< 2.5.1-r0UNKNOWN
Alpine3.14-mainnoarchruby< 2.5.1-r0UNKNOWN
Alpine3.15-mainnoarchruby< 2.5.1-r0UNKNOWN
Alpine3.16-mainnoarchruby< 2.5.1-r0UNKNOWN
Alpine3.17-mainnoarchruby< 2.5.1-r0UNKNOWN
Alpine3.18-mainnoarchruby< 2.5.1-r0UNKNOWN

OS	Version	Architecture	Package	Version	Filename
Alpine	edge-main	noarch	ruby	< 2.5.1-r0	UNKNOWN
Alpine	3.10-main	noarch	ruby	< 2.5.1-r0	UNKNOWN
Alpine	3.11-main	noarch	ruby	< 2.5.1-r0	UNKNOWN
Alpine	3.12-main	noarch	ruby	< 2.5.1-r0	UNKNOWN
Alpine	3.13-main	noarch	ruby	< 2.5.1-r0	UNKNOWN
Alpine	3.14-main	noarch	ruby	< 2.5.1-r0	UNKNOWN
Alpine	3.15-main	noarch	ruby	< 2.5.1-r0	UNKNOWN
Alpine	3.16-main	noarch	ruby	< 2.5.1-r0	UNKNOWN
Alpine	3.17-main	noarch	ruby	< 2.5.1-r0	UNKNOWN
Alpine	3.18-main	noarch	ruby	< 2.5.1-r0	UNKNOWN