CVE-2023-52425

2024-02-0420:15:46

Alpine Linux Development Team

security.alpinelinux.org

cve-2023-52425

denial of service

vulnerability

libexpat

resource consumption

reparsings

large token

buffer fills

unix

7.5 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

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

7.8 High

AI Score

Confidence

High

0.001 Low

EPSS

Percentile

38.0%

JSON

libexpat through 2.5.0 allows a denial of service (resource consumption) because many full reparsings are required in the case of a large token for which multiple buffer fills are needed.

OSVersionArchitecturePackageVersionFilename
Alpineedge-mainnoarchexpat< 2.6.0-r0UNKNOWN
Alpine3.16-mainnoarchexpat< 2.6.0-r0UNKNOWN
Alpine3.17-mainnoarchexpat< 2.6.0-r0UNKNOWN
Alpine3.18-mainnoarchexpat< 2.6.0-r0UNKNOWN
Alpine3.19-mainnoarchexpat< 2.6.0-r0UNKNOWN
Alpine3.20-mainnoarchexpat< 2.6.0-r0UNKNOWN

OS	Version	Architecture	Package	Version	Filename
Alpine	edge-main	noarch	expat	< 2.6.0-r0	UNKNOWN
Alpine	3.16-main	noarch	expat	< 2.6.0-r0	UNKNOWN
Alpine	3.17-main	noarch	expat	< 2.6.0-r0	UNKNOWN
Alpine	3.18-main	noarch	expat	< 2.6.0-r0	UNKNOWN
Alpine	3.19-main	noarch	expat	< 2.6.0-r0	UNKNOWN
Alpine	3.20-main	noarch	expat	< 2.6.0-r0	UNKNOWN