PT-2021-3159 · Apache+3 · Apache Tomcat+3

Published 2021-01-01 · Updated 2025-01-28 · CVE-2020-36186

Positive Technologies (AI Summary)

CVSS v2.0

9.3

High

Base vector

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

Name of the Vulnerable Software and Affected Versions FasterXML jackson-databind versions 2.x before 2.9.10.8

Description The issue is related to the interaction between serialization gadgets and typing, specifically with the org.apache.tomcat.dbcp.dbcp.datasources.PerUserPoolDataSource component. This can lead to the exploitation of the vulnerability, potentially allowing a remote attacker to impact the confidentiality, integrity, and availability of protected information.

Recommendations For FasterXML jackson-databind versions 2.x before 2.9.10.8, update to version 2.9.10.8 or later to resolve the issue. As a temporary workaround, consider disabling the use of the org.apache.tomcat.dbcp.dbcp.datasources.PerUserPoolDataSource component until a patch is available.

Exploit

Fix

Deserialization of Untrusted Data

Weakness Enumeration

CWE-502

Related Identifiers

ALT-PU-2021-1792

BDU:2021-02829

CVE-2020-36186

DLA-2638-1

GHSA-V585-23HC-C647

OESA-2021-1051

ROSA-SA-2025-2629

Affected Products

Alt Linux

Astra Linux

Apache Tomcat

Jackson-Databind

References · 42

• 🔥 https://cowtowncoder.medium.com/on-jackson-cves-dont-panic-here-is-what-you-need-to-know-54cd0d6e8062 · Exploit
• https://nvd.nist.gov/vuln/detail/CVE-2020-36179 · Security Note
• https://bdu.fstec.ru/vul/2021-02829 · Security Note
• https://osv.dev/vulnerability/DEBIAN-CVE-2020-36186 · Vendor Advisory
• https://osv.dev/vulnerability/DLA-2638-1 · Vendor Advisory
• https://oracle.com/security-alerts/cpuapr2022.html · Patch
• https://nvd.nist.gov/vuln/detail/CVE-2020-36184 · Security Note
• https://oracle.com/security-alerts/cpujan2022.html · Patch
• https://nvd.nist.gov/vuln/detail/CVE-2021-20190 · Security Note
• https://oracle.com//security-alerts/cpujul2021.html · Patch
• https://oracle.com/security-alerts/cpuoct2021.html · Patch
• https://nvd.nist.gov/vuln/detail/CVE-2020-36188 · Security Note
• https://security-tracker.debian.org/tracker/CVE-2020-36186 · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2020-36186 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2020-36183 · Security Note