CVE-2021-36976

2021-07-2007:15:07

Alpine Linux Development Team

security.alpinelinux.org

4.3 Medium

CVSS2

Attack Vector

NETWORK

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

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

6.5 Medium

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

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

7.3 High

AI Score

Confidence

High

0.005 Low

EPSS

Percentile

77.3%

JSON

libarchive 3.4.1 through 3.5.1 has a use-after-free in copy_string (called from do_uncompress_block and process_block).

OSVersionArchitecturePackageVersionFilename
Alpineedge-mainnoarchlibarchive< 3.6.0-r0UNKNOWN
Alpine3.13-mainnoarchlibarchive< 3.5.3-r0UNKNOWN
Alpine3.14-mainnoarchlibarchive< 3.5.3-r0UNKNOWN
Alpine3.15-mainnoarchlibarchive< 3.6.0-r0UNKNOWN
Alpine3.16-mainnoarchlibarchive< 3.6.0-r0UNKNOWN
Alpine3.17-mainnoarchlibarchive< 3.6.0-r0UNKNOWN
Alpine3.18-mainnoarchlibarchive< 3.6.0-r0UNKNOWN
Alpine3.19-mainnoarchlibarchive< 3.6.0-r0UNKNOWN
Alpine3.20-mainnoarchlibarchive< 3.6.0-r0UNKNOWN

OS	Version	Architecture	Package	Version	Filename
Alpine	edge-main	noarch	libarchive	< 3.6.0-r0	UNKNOWN
Alpine	3.13-main	noarch	libarchive	< 3.5.3-r0	UNKNOWN
Alpine	3.14-main	noarch	libarchive	< 3.5.3-r0	UNKNOWN
Alpine	3.15-main	noarch	libarchive	< 3.6.0-r0	UNKNOWN
Alpine	3.16-main	noarch	libarchive	< 3.6.0-r0	UNKNOWN
Alpine	3.17-main	noarch	libarchive	< 3.6.0-r0	UNKNOWN
Alpine	3.18-main	noarch	libarchive	< 3.6.0-r0	UNKNOWN
Alpine	3.19-main	noarch	libarchive	< 3.6.0-r0	UNKNOWN
Alpine	3.20-main	noarch	libarchive	< 3.6.0-r0	UNKNOWN