PT-2021-5145 · Xstream+5 · Xstream+5

Published 2021-03-12 · Updated 2024-08-22 · CVE-2021-21351

Positive Technologies (AI Summary)

CVSS v3.1

9.1

Critical

Base vector

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

Name of the Vulnerable Software and Affected Versions XStream versions prior to 1.4.16

Description The issue is related to the XStream Java library, which is used for serializing objects to XML and back again. It may allow a remote attacker to load and execute arbitrary code from a remote host by manipulating the processed input stream. Users who set up XStream's security framework with a whitelist limited to the minimal required types are not affected.

Recommendations For versions prior to 1.4.16, update to at least version 1.4.16 to resolve the issue. As a temporary workaround, consider setting up XStream's security framework with a whitelist limited to the minimal required types.

Exploit

Fix

Unrestricted File Upload

Deserialization of Untrusted Data

Weakness Enumeration

CWE-434

CWE-502

Related Identifiers

ALT-PU-2022-1100

ALT-PU-2022-2171

ALT-PU-2022-7660

ALT-PU-2023-1912

BDU:2021-05940

BIT-ACTIVEMQ-2021-21351

CVE-2021-21351

DLA-2616-1

DSA-5004-1

GHSA-HRCP-8F3Q-4W2C

MGASA-2021-0370

OESA-2021-1185

OPENSUSE-SU-2021:0832-1

OPENSUSE-SU-2021:1840-1

OPENSUSE-SU-2021_0832-1

OPENSUSE-SU-2021_1840-1

OPENSUSE-SU-2024:10592-1

SUSE-SU-2021:1840-1

SUSE-SU-2021:1840-2

USN-4943-1

USN-6978-1

Affected Products

Alt Linux

Astra Linux

Linuxmint

Suse

Ubuntu

Xstream

References · 123

• 🔥 https://x-stream.github.io/CVE-2021-21351.html · Exploit
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/PVPHZA7VW2RRSDCOIPP2W6O5ND254TU7 · Vendor Advisory
• https://ubuntu.com/security/notices/USN-4943-1 · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2021-21351 · Vendor Advisory
• https://debian.org/lts/security/2021/dla-2616 · Vendor Advisory
• https://security-tracker.debian.org/tracker/CVE-2021-21351 · Vendor Advisory
• https://ubuntu.com/security/CVE-2021-21346 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-21341 · Security Note
• https://lists.fedoraproject.org/archives/list/[e-mail]/message/22KVR6B5IZP3BGQ3HPWIO2FWWCKT3DHP · Vendor Advisory
• https://ubuntu.com/security/CVE-2021-21345 · Vendor Advisory
• https://ubuntu.com/security/CVE-2021-21347 · Vendor Advisory
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/22KVR6B5IZP3BGQ3HPWIO2FWWCKT3DHP · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-21351 · Security Note
• https://osv.dev/vulnerability/MGASA-2021-0370 · Vendor Advisory
• https://safe-surf.ru/specialists/bulletins-nkcki/683476 · Security Note