CVE-2020-28928

2020-11-2418:15:12

Alpine Linux Development Team

security.alpinelinux.org

2.1 Low

CVSS2

Attack Vector

LOCAL

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

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

5.5 Medium

CVSS3

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

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

6 Medium

AI Score

Confidence

High

0.001 Low

EPSS

Percentile

20.3%

JSON

In musl libc through 1.2.1, wcsnrtombs mishandles particular combinations of destination buffer size and source character limit, as demonstrated by an invalid write access (buffer overflow).

OSVersionArchitecturePackageVersionFilename
Alpineedge-mainnoarchmusl< 1.2.2_pre2-r0UNKNOWN
Alpine3.10-mainnoarchmusl< 1.1.22-r4UNKNOWN
Alpine3.11-mainnoarchmusl< 1.1.24-r3UNKNOWN
Alpine3.12-mainnoarchmusl< 1.1.24-r10UNKNOWN
Alpine3.13-mainnoarchmusl< 1.2.2_pre2-r0UNKNOWN
Alpine3.14-mainnoarchmusl< 1.2.2_pre2-r0UNKNOWN
Alpine3.15-mainnoarchmusl< 1.2.2_pre2-r0UNKNOWN
Alpine3.16-mainnoarchmusl< 1.2.2_pre2-r0UNKNOWN
Alpine3.17-mainnoarchmusl< 1.2.2_pre2-r0UNKNOWN
Alpine3.18-mainnoarchmusl< 1.2.2_pre2-r0UNKNOWN

OS	Version	Architecture	Package	Version	Filename
Alpine	edge-main	noarch	musl	< 1.2.2_pre2-r0	UNKNOWN
Alpine	3.10-main	noarch	musl	< 1.1.22-r4	UNKNOWN
Alpine	3.11-main	noarch	musl	< 1.1.24-r3	UNKNOWN
Alpine	3.12-main	noarch	musl	< 1.1.24-r10	UNKNOWN
Alpine	3.13-main	noarch	musl	< 1.2.2_pre2-r0	UNKNOWN
Alpine	3.14-main	noarch	musl	< 1.2.2_pre2-r0	UNKNOWN
Alpine	3.15-main	noarch	musl	< 1.2.2_pre2-r0	UNKNOWN
Alpine	3.16-main	noarch	musl	< 1.2.2_pre2-r0	UNKNOWN
Alpine	3.17-main	noarch	musl	< 1.2.2_pre2-r0	UNKNOWN
Alpine	3.18-main	noarch	musl	< 1.2.2_pre2-r0	UNKNOWN