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Ubuntu 24.04: FORT Validator Security Advisory USN-7813-1 DoS Risks

ubuntu
Calendar Grey October 8, 2025
Dist Ubuntu Esm H88
Several security issues fixed in FORT Validator for Ubuntu 24.04 LTS, 22.04 LTS, address potential DoS attacks.

Several security issues were fixed in FORT Validator.

Summary

Several security issues were fixed in FORT Validator.

Software Description:

- fort-validator: RPKI validator and RTR server

Details:

Niklas Vogel and Haya Schulmann discovered that FORT Validator did not

perform proper input validation when parsing certain RPKI repository data.

A remote attacker could possibly use this issue to cause FORT Validator to

crash, resulting in a denial of service. (CVE-2024-45234, CVE-2024-45235,

CVE-2024-45236, CVE-2024-45238, CVE-2024-45239)

Niklas Vogel and Haya Schulmann discovered that FORT Validator did not

perform proper input validation when parsing resource certificates. A

remote attacker could possibly use this issue to cause a denial of service

or execute arbitrary code. (CVE-2024-45237)

Koen van Hove discovered that FORT Validator did not limit the duration of

data transfers when fetching RPKI repository data. A remote attacker could

possibly use this issue to cause FORT Validator to consume excessive

resources, res...

Read the Full Advisory

Topics%20covered

Topics Covered

security advisory denial of service remote attack Ubuntu input validation fort-validator

Update Instructions

The problem can be corrected by updating your system to the following
package versions:

Ubuntu 24.04 LTS
  fort-validator                  1.6.1-1ubuntu0.1~esm2
                                  Available with Ubuntu Pro

Ubuntu 22.04 LTS
  fort-validator                  1.5.3-1ubuntu0.1

Ubuntu 20.04 LTS
  fort-validator                  1.2.0-1ubuntu0.1~esm1
                                  Available with Ubuntu Pro

After a standard system update you need to restart FORT Validator to make
all the necessary changes.

References

https://ubuntu.com/security/notices/USN-7813-1

CVE-2024-45234, CVE-2024-45235, CVE-2024-45236, CVE-2024-45237,

CVE-2024-45238, CVE-2024-45239, CVE-2024-48943

Severity
important
Lowest
Low
Medium
High
Critical

==========================================================================

Topics%20covered

Topics Covered

security advisory denial of service remote attack Ubuntu input validation fort-validator

Package Information

https://launchpad.net/ubuntu/+source/fort-validator/1.5.3-1ubuntu0.1

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