CVE-2021-39144
XStream is vulnerable to a Remote Command Execution attack
8.5
HIGH
CVSS 3.1
⚠ KEVEPSS 94.3%
Description
XStream is a simple library to serialize objects to XML and back again. In affected versions this vulnerability may allow a remote attacker has sufficient rights to execute commands of the host 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.
How to fix CVE-2021-39144
To remediate CVE-2021-39144, upgrade the affected package to a fixed version below.
- —upgrade to 1.4.15-3+deb11u1 or later
- —upgrade to 1.4.18 or later
Is CVE-2021-39144 being exploited?
Yes — CVE-2021-39144 is on the CISA Known Exploited Vulnerabilities (KEV) catalog. Patch immediately.
Affected packages (2)
- from 0, < 1.4.15-3+deb11u1
- from 0, < 1.4.18
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | HIGH8.5 | CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H/E:H |