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UBUNTU-CVE-2025-52520

0
High
Vulnerabilitygcveosvubuntu-cve-2025-52520ubuntu-pro-14-04-ltsubuntu-pro-16-04-ltsubuntu-pro-18-04-ltsubuntu-pro-20-04-ltsubuntu-pro-22-04-ltsubuntu-pro-24-04-ltsubuntu-25-10ubuntu-26-04-lts
Published: 07/10/2025 (07/10/2025, 19:15:00 UTC)
Source: GCVE Database
Product: tomcat6

Description

An Integer Overflow vulnerability in Apache Tomcat affects certain multipart upload configurations, potentially allowing denial of service (DoS) by bypassing size limits. This impacts multiple Apache Tomcat versions from 6.0.37-1 through 11.0.8, including some end-of-life versions. The issue is fixed in Apache Tomcat versions 11.0.9, 10.1.43, and 9.0.107. Users are advised to upgrade to these fixed versions to mitigate the risk.

CVSS v3.1

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Affected software

Ubuntu:Pro:14.04:LTSmore threats →ghsa
tomcat6
pkg:deb/ubuntu/[email protected]+esm3?arch=source&distro=esm-infra-legacy/trusty
Affected versions
=6.0.37-1=6.0.39-1=6.0.39-1ubuntu0.1=6.0.39-1ubuntu0.1+esm1=6.0.39-1ubuntu0.1+esm2=6.0.39-1ubuntu0.1+esm3
Ubuntu:Pro:14.04:LTSmore threats →ghsa
tomcat7
pkg:deb/ubuntu/[email protected]+esm2?arch=source&distro=esm-infra-legacy/trusty
Affected versions
=7.0.42-1=7.0.47-1=7.0.50-1=7.0.52-1=7.0.52-1ubuntu0.1=7.0.52-1ubuntu0.3=7.0.52-1ubuntu0.6=7.0.52-1ubuntu0.7=7.0.52-1ubuntu0.8=7.0.52-1ubuntu0.9=7.0.52-1ubuntu0.10=7.0.52-1ubuntu0.11=7.0.52-1ubuntu0.13=7.0.52-1ubuntu0.14=7.0.52-1ubuntu0.15=7.0.52-1ubuntu0.16=7.0.52-1ubuntu0.16+esm1=7.0.52-1ubuntu0.16+esm2
Ubuntu:Pro:16.04:LTSmore threats →ghsa
tomcat8
pkg:deb/ubuntu/[email protected]+esm2?arch=source&distro=esm-infra-legacy/xenial
Affected versions
=8.0.26-1=8.0.28-1=8.0.30-1=8.0.32-1=8.0.32-1ubuntu1=8.0.32-1ubuntu1.1=8.0.32-1ubuntu1.2=8.0.32-1ubuntu1.3=8.0.32-1ubuntu1.4=8.0.32-1ubuntu1.5=8.0.32-1ubuntu1.6=8.0.32-1ubuntu1.7=8.0.32-1ubuntu1.8=8.0.32-1ubuntu1.9=8.0.32-1ubuntu1.10=8.0.32-1ubuntu1.11=8.0.32-1ubuntu1.13=8.0.32-1ubuntu1.13+esm1=8.0.32-1ubuntu1.13+esm2
Ubuntu:Pro:16.04:LTSmore threats →ghsa
tomcat7
pkg:deb/ubuntu/[email protected]+esm4?arch=source&distro=esm-apps-legacy/xenial
Affected versions
=7.0.64-1=7.0.68-1=7.0.68-1ubuntu0.1=7.0.68-1ubuntu0.3=7.0.68-1ubuntu0.4=7.0.68-1ubuntu0.4+esm1=7.0.68-1ubuntu0.4+esm2=7.0.68-1ubuntu0.4+esm3=7.0.68-1ubuntu0.4+esm4
Ubuntu:Pro:18.04:LTSmore threats →ghsa
tomcat8
pkg:deb/ubuntu/[email protected]~18.04.3+esm6?arch=source&distro=esm-apps/bionic
Affected versions
=8.5.21-1ubuntu1=8.5.29-1=8.5.30-1=8.5.30-1ubuntu1=8.5.30-1ubuntu1.2=8.5.30-1ubuntu1.3=8.5.30-1ubuntu1.4=8.5.39-1ubuntu1~18.04.1=8.5.39-1ubuntu1~18.04.2=8.5.39-1ubuntu1~18.04.3=8.5.39-1ubuntu1~18.04.3+esm1=8.5.39-1ubuntu1~18.04.3+esm2=8.5.39-1ubuntu1~18.04.3+esm3=8.5.39-1ubuntu1~18.04.3+esm4=8.5.39-1ubuntu1~18.04.3+esm5=8.5.39-1ubuntu1~18.04.3+esm6
Ubuntu:Pro:18.04:LTSmore threats →ghsa
tomcat9
pkg:deb/ubuntu/[email protected]+esm8?arch=source&distro=esm-apps/bionic
Affected versions
=9.0.16-3~18.04.1=9.0.16-3ubuntu0.18.04.1=9.0.16-3ubuntu0.18.04.2=9.0.16-3ubuntu0.18.04.2+esm1=9.0.16-3ubuntu0.18.04.2+esm2=9.0.16-3ubuntu0.18.04.2+esm3=9.0.16-3ubuntu0.18.04.2+esm4=9.0.16-3ubuntu0.18.04.2+esm5=9.0.16-3ubuntu0.18.04.2+esm6=9.0.16-3ubuntu0.18.04.2+esm7=9.0.16-3ubuntu0.18.04.2+esm8
Ubuntu:Pro:20.04:LTSmore threats →ghsa
tomcat9
pkg:deb/ubuntu/[email protected]+esm3?arch=source&distro=esm-apps/focal
Affected versions
=9.0.24-1=9.0.27-1=9.0.31-1=9.0.31-1ubuntu0.1=9.0.31-1ubuntu0.2=9.0.31-1ubuntu0.3=9.0.31-1ubuntu0.4=9.0.31-1ubuntu0.5=9.0.31-1ubuntu0.6=9.0.31-1ubuntu0.7=9.0.31-1ubuntu0.8=9.0.31-1ubuntu0.9=9.0.31-1ubuntu0.9+esm1=9.0.31-1ubuntu0.9+esm2=9.0.31-1ubuntu0.9+esm3
Ubuntu:Pro:22.04:LTSmore threats →ghsa
tomcat9
pkg:deb/ubuntu/[email protected]+esm4?arch=source&distro=esm-apps/jammy
Affected versions
=9.0.43-3=9.0.54-1=9.0.55-1=9.0.58-1=9.0.58-1ubuntu0.1=9.0.58-1ubuntu0.1+esm1=9.0.58-1ubuntu0.1+esm2=9.0.58-1ubuntu0.1+esm3=9.0.58-1ubuntu0.1+esm4=9.0.58-1ubuntu0.2=9.0.58-1ubuntu0.2+esm1=9.0.58-1ubuntu0.2+esm2=9.0.58-1ubuntu0.2+esm3=9.0.58-1ubuntu0.2+esm4
Ubuntu:Pro:24.04:LTSmore threats →ghsa
tomcat10
pkg:deb/ubuntu/[email protected]~esm4?arch=source&distro=esm-apps/noble
Affected versions
=10.1.10-1=10.1.14-1=10.1.15-1=10.1.16-1=10.1.16-1ubuntu0.1~esm1=10.1.16-1ubuntu0.1~esm2=10.1.16-1ubuntu0.1~esm3=10.1.16-1ubuntu0.1~esm4
Ubuntu:25.10more threats →ghsa
tomcat10
pkg:deb/ubuntu/[email protected]?arch=source&distro=questing
Affected versions
=10.1.35-1=10.1.40-1=10.1.40-1ubuntu1=10.1.40-1ubuntu1.25.10.1
Ubuntu:25.10more threats →ghsa
tomcat11
pkg:deb/ubuntu/[email protected]?arch=source&distro=questing
Affected versions
=11.0.6-1
Ubuntu:26.04:LTSmore threats →ghsa
tomcat10
pkg:deb/ubuntu/[email protected]~26.04.1?arch=source&distro=resolute
Affected versions
=10.1.40-1ubuntu1=10.1.40-1ubuntu1.26.04.1=10.1.55-1ubuntu2~26.04.1
Ubuntu:26.04:LTSmore threats →ghsa
tomcat11
pkg:deb/ubuntu/[email protected]~26.04.1?arch=source&distro=resolute
Affected versions
=11.0.6-1=11.0.11-1=11.0.15-1=11.0.18-1=11.0.18-1ubuntu0.1~esm1=11.0.22-2ubuntu2~26.04.1

Run on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.

AI-Powered Analysis

Machine-generated threat intelligence

AILast updated: 07/16/2026, 14:14:23 UTC

Technical Analysis

The vulnerability is an Integer Overflow in Apache Tomcat multipart upload handling that can lead to denial of service by bypassing size limits. It affects Apache Tomcat versions from 11.0.0-M1 through 11.0.8, 10.1.0-M1 through 10.1.42, 9.0.0.M1 through 9.0.106, and older EOL versions including 8.5.0 through 8.5.100. The issue is fixed in versions 11.0.9, 10.1.43, and 9.0.107. The vulnerability does not affect confidentiality or integrity but impacts availability by enabling DoS. The provided affectedVersions list includes many specific Ubuntu package versions impacted by this issue.

Potential Impact

The vulnerability can cause denial of service (DoS) by bypassing size limits in multipart upload processing due to an Integer Overflow. There is no impact on confidentiality or integrity reported. No known exploits in the wild have been identified at this time.

Mitigation Recommendations

A fix is available. Users should upgrade Apache Tomcat to versions 11.0.9, 10.1.43, or 9.0.107 or later to remediate this vulnerability. Applying these official updates will address the Integer Overflow and prevent the denial of service condition.

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Technical Details

Gcve Source
db.gcve.eu
Osv Id
UBUNTU-CVE-2025-52520
Osv Schema Version
1.7.0
Aliases
[]
Ecosystems
["Ubuntu:Pro:14.04:LTS","Ubuntu:Pro:16.04:LTS","Ubuntu:Pro:18.04:LTS","Ubuntu:Pro:20.04:LTS","Ubuntu:Pro:22.04:LTS","Ubuntu:Pro:24.04:LTS","Ubuntu:25.10","Ubuntu:26.04:LTS"]
Database Specific Severity
null
Cvss Version
3.1

Threat ID: 6a58b50368715ace43db2894

Added to database: 07/16/2026, 10:40:03 UTC

Last enriched: 07/16/2026, 14:14:23 UTC

Last updated: 07/16/2026, 14:14:23 UTC

Views: 2

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