# CVE-2021-25329: libservlet3.0-java: The fix for CVE-2020-9484 was incomplete

CVE-2021-25329 is fixed in 9 products on 1 platform, first by libservlet3.0-java 7.0.78-1ubuntu0.1~esm1, released March 1, 2021. It is not reported as exploited. Patch Radar priority: Routine.

- Web page: https://patchblox.com/security/cve/CVE-2021-25329
- Priority: Routine
- CVSS: n/a (Low)
- EPSS: 0.0949
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Mar 1, 2021

## Description

The fix for CVE-2020-9484 was incomplete. When using Apache Tomcat 10.0.0-M1 to 10.0.0, 9.0.0.M1 to 9.0.41, 8.5.0 to 8.5.61 or 7.0.0. to 7.0.107 with a configuration edge case that was highly unlikely to be used, the Tomcat instance was still vulnerable to CVE-2020-9494. Note that both the previously published prerequisites for CVE-2020-9484 and the previously published mitigations for CVE-2020-9484 also apply to this issue.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | libservlet3.0-java Ubuntu 18.04.6 LTS (bionic) | 7.0.78-1ubuntu0.1~esm1 | [libservlet3.0-java 7.0.78-1ubuntu0.1~esm1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-libservlet3.0-java-7.0.78-1ubuntu0.1-esm1.md) | Mar 1, 2021 |
| Linux | libtomcat9-embed-java Ubuntu 18.04.6 LTS (bionic) | 9.0.16-3ubuntu0.18.04.2 | [libtomcat9-embed-java 9.0.16-3ubuntu0.18.04.2](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-libtomcat9-embed-java-9.0.16-3ubuntu0.18.04.2.md) | Sep 16, 2021 |
| Linux | libtomcat9-embed-java Ubuntu 20.04 LTS (focal) | 9.0.31-1ubuntu0.2 | [libtomcat9-embed-java 9.0.31-1ubuntu0.2](https://patchblox.com/security/data/fix/linux/ubuntu-focal-libtomcat9-embed-java-9.0.31-1ubuntu0.2.md) | Sep 16, 2021 |
| Linux | libtomcat9-java Ubuntu 18.04.6 LTS (bionic) | 9.0.16-3ubuntu0.18.04.2 | [libtomcat9-java 9.0.16-3ubuntu0.18.04.2](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-libtomcat9-java-9.0.16-3ubuntu0.18.04.2.md) | Sep 16, 2021 |
| Linux | libtomcat9-java Ubuntu 20.04 LTS (focal) | 9.0.31-1ubuntu0.2 | [libtomcat9-java 9.0.31-1ubuntu0.2](https://patchblox.com/security/data/fix/linux/ubuntu-focal-libtomcat9-java-9.0.31-1ubuntu0.2.md) | Sep 16, 2021 |
| Linux | tomcat9 Ubuntu 18.04.6 LTS (bionic) | 9.0.16-3ubuntu0.18.04.2 | [tomcat9 9.0.16-3ubuntu0.18.04.2](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-tomcat9-9.0.16-3ubuntu0.18.04.2.md) | Sep 16, 2021 |
| Linux | tomcat9 Ubuntu 20.04 LTS (focal) | 9.0.31-1ubuntu0.2 | [tomcat9 9.0.31-1ubuntu0.2](https://patchblox.com/security/data/fix/linux/ubuntu-focal-tomcat9-9.0.31-1ubuntu0.2.md) | Sep 16, 2021 |
| Linux | tomcat9-admin Ubuntu 18.04.6 LTS (bionic) | 9.0.16-3ubuntu0.18.04.2 | [tomcat9-admin 9.0.16-3ubuntu0.18.04.2](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-tomcat9-admin-9.0.16-3ubuntu0.18.04.2.md) | Sep 16, 2021 |
| Linux | tomcat9-admin Ubuntu 20.04 LTS (focal) | 9.0.31-1ubuntu0.2 | [tomcat9-admin 9.0.31-1ubuntu0.2](https://patchblox.com/security/data/fix/linux/ubuntu-focal-tomcat9-admin-9.0.31-1ubuntu0.2.md) | Sep 16, 2021 |
| Linux | tomcat9-common Ubuntu 18.04.6 LTS (bionic) | 9.0.16-3ubuntu0.18.04.2 | [tomcat9-common 9.0.16-3ubuntu0.18.04.2](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-tomcat9-common-9.0.16-3ubuntu0.18.04.2.md) | Sep 16, 2021 |
| Linux | tomcat9-common Ubuntu 20.04 LTS (focal) | 9.0.31-1ubuntu0.2 | [tomcat9-common 9.0.31-1ubuntu0.2](https://patchblox.com/security/data/fix/linux/ubuntu-focal-tomcat9-common-9.0.31-1ubuntu0.2.md) | Sep 16, 2021 |
| Linux | tomcat9-docs Ubuntu 18.04.6 LTS (bionic) | 9.0.16-3ubuntu0.18.04.2 | [tomcat9-docs 9.0.16-3ubuntu0.18.04.2](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-tomcat9-docs-9.0.16-3ubuntu0.18.04.2.md) | Sep 16, 2021 |
| Linux | tomcat9-docs Ubuntu 20.04 LTS (focal) | 9.0.31-1ubuntu0.2 | [tomcat9-docs 9.0.31-1ubuntu0.2](https://patchblox.com/security/data/fix/linux/ubuntu-focal-tomcat9-docs-9.0.31-1ubuntu0.2.md) | Sep 16, 2021 |
| Linux | tomcat9-examples Ubuntu 18.04.6 LTS (bionic) | 9.0.16-3ubuntu0.18.04.2 | [tomcat9-examples 9.0.16-3ubuntu0.18.04.2](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-tomcat9-examples-9.0.16-3ubuntu0.18.04.2.md) | Sep 16, 2021 |
| Linux | tomcat9-examples Ubuntu 20.04 LTS (focal) | 9.0.31-1ubuntu0.2 | [tomcat9-examples 9.0.31-1ubuntu0.2](https://patchblox.com/security/data/fix/linux/ubuntu-focal-tomcat9-examples-9.0.31-1ubuntu0.2.md) | Sep 16, 2021 |
| Linux | tomcat9-user Ubuntu 18.04.6 LTS (bionic) | 9.0.16-3ubuntu0.18.04.2 | [tomcat9-user 9.0.16-3ubuntu0.18.04.2](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-tomcat9-user-9.0.16-3ubuntu0.18.04.2.md) | Sep 16, 2021 |
| Linux | tomcat9-user Ubuntu 20.04 LTS (focal) | 9.0.31-1ubuntu0.2 | [tomcat9-user 9.0.31-1ubuntu0.2](https://patchblox.com/security/data/fix/linux/ubuntu-focal-tomcat9-user-9.0.31-1ubuntu0.2.md) | Sep 16, 2021 |

---

Data as of 2026-11-08T13:06:02Z UTC. Source: Patchblox Patch Radar (https://patchblox.com/security/patch-radar). Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo

Free to use with attribution: show "Data: Patchblox Patch Radar" with a link to https://patchblox.com/security/patch-radar. Terms, including what needs a written agreement: https://patchblox.com/security/patch-radar/use-the-data

Product names, logos and trademarks shown on Patch Radar belong to their respective owners. They are used only to identify the software each security fix applies to and to help readers find their platform. Their use does not imply any affiliation with, or endorsement by, those owners, and Patchblox is not affiliated with any of them.