CVE-2021-39140

Published Aug 23, 2021

Last updated a year ago

Overview

Description
XStream is a simple library to serialize objects to XML and back again. In affected versions this vulnerability may allow a remote attacker to allocate 100% CPU time on the target system depending on CPU type or parallel execution of such a payload resulting in a denial of service only by manipulating the processed input stream. No user is affected, who followed the recommendation to setup XStream's security framework with a whitelist limited to the minimal required types. XStream 1.4.18 uses no longer a blacklist by default, since it cannot be secured for general purpose.
Source
security-advisories@github.com
NVD status
Modified

Risk scores

CVSS 3.1

Type
Primary
Base score
6.3
Impact score
4
Exploitability score
1.8
Vector string
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:N/I:N/A:H
Severity
MEDIUM

CVSS 2.0

Type
Primary
Base score
6.3
Impact score
6.9
Exploitability score
6.8
Vector string
AV:N/AC:M/Au:S/C:N/I:N/A:C

Weaknesses

security-advisories@github.com
CWE-502
nvd@nist.gov
CWE-502

Social media

Hype score
Not currently trending

Configurations