CVE-2020-10933

2020-05-0415:15:13

Alpine Linux Development Team

security.alpinelinux.org

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

CVSS3

5.3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

LOW

Integrity Impact

NONE

Availability Impact

NONE

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

AI Score

6.5

Confidence

High

EPSS

0.006

Percentile

79.5%

JSON

An issue was discovered in Ruby 2.5.x through 2.5.7, 2.6.x through 2.6.5, and 2.7.0. If a victim calls BasicSocket#read_nonblock(requested_size, buffer, exception: false), the method resizes the buffer to fit the requested size, but no data is copied. Thus, the buffer string provides the previous value of the heap. This may expose possibly sensitive data from the interpreter.

OSVersionArchitecturePackageVersionFilename
Alpineedge-mainnoarchruby< 2.6.6-r0UNKNOWN
Alpine3.10-mainnoarchruby< 2.5.8-r0UNKNOWN
Alpine3.11-mainnoarchruby< 2.6.6-r0UNKNOWN
Alpine3.12-mainnoarchruby< 2.6.6-r0UNKNOWN
Alpine3.13-mainnoarchruby< 2.6.6-r0UNKNOWN
Alpine3.14-mainnoarchruby< 2.6.6-r0UNKNOWN
Alpine3.15-mainnoarchruby< 2.6.6-r0UNKNOWN
Alpine3.16-mainnoarchruby< 2.6.6-r0UNKNOWN
Alpine3.17-mainnoarchruby< 2.6.6-r0UNKNOWN
Alpine3.18-mainnoarchruby< 2.6.6-r0UNKNOWN

OS	Version	Architecture	Package	Version	Filename
Alpine	edge-main	noarch	ruby	< 2.6.6-r0	UNKNOWN
Alpine	3.10-main	noarch	ruby	< 2.5.8-r0	UNKNOWN
Alpine	3.11-main	noarch	ruby	< 2.6.6-r0	UNKNOWN
Alpine	3.12-main	noarch	ruby	< 2.6.6-r0	UNKNOWN
Alpine	3.13-main	noarch	ruby	< 2.6.6-r0	UNKNOWN
Alpine	3.14-main	noarch	ruby	< 2.6.6-r0	UNKNOWN
Alpine	3.15-main	noarch	ruby	< 2.6.6-r0	UNKNOWN
Alpine	3.16-main	noarch	ruby	< 2.6.6-r0	UNKNOWN
Alpine	3.17-main	noarch	ruby	< 2.6.6-r0	UNKNOWN
Alpine	3.18-main	noarch	ruby	< 2.6.6-r0	UNKNOWN