UBUNTU-CVE-2024-45403

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Source
https://ubuntu.com/security/CVE-2024-45403
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2024/UBUNTU-CVE-2024-45403.json
JSON Data
https://api.osv.dev/v1/vulns/UBUNTU-CVE-2024-45403
Related
Published
2024-10-11T15:15:00Z
Modified
2025-04-23T15:05:30Z
Severity
  • 7.5 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
Summary
[none]
Details

h2o is an HTTP server with support for HTTP/1.x, HTTP/2 and HTTP/3. When h2o is configured as a reverse proxy and HTTP/3 requests are cancelled by the client, h2o might crash due to an assertion failure. The crash can be exploited by an attacker to mount a Denial-of-Service attack. By default, the h2o standalone server automatically restarts, minimizing the impact. However, HTTP requests that were served concurrently will still be disrupted. The vulnerability has been addressed in commit 1ed32b2. Users may disable the use of HTTP/3 to mitigate the issue.

References

Affected packages

Ubuntu:Pro:18.04:LTS / h2o

Package

Name
h2o
Purl
pkg:deb/ubuntu/h2o@2.2.4+dfsg-1build1?arch=source&distro=esm-apps/bionic

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

2.*

2.2.3+dfsg-2
2.2.4+dfsg-1
2.2.4+dfsg-1build1

Ecosystem specific 

{
    "ubuntu_priority": "medium"
}

Ubuntu:20.04:LTS / h2o

Package

Name
h2o
Purl
pkg:deb/ubuntu/h2o@2.2.5+dfsg2-3build1?arch=source&distro=focal

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

2.*

2.2.5+dfsg2-3
2.2.5+dfsg2-3build1

Ecosystem specific 

{
    "ubuntu_priority": "medium"
}

Ubuntu:22.04:LTS / h2o

Package

Name
h2o
Purl
pkg:deb/ubuntu/h2o@2.2.5+dfsg2-6.1ubuntu2?arch=source&distro=jammy

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

2.*

2.2.5+dfsg2-6
2.2.5+dfsg2-6.1
2.2.5+dfsg2-6.1ubuntu1
2.2.5+dfsg2-6.1ubuntu2

Ecosystem specific 

{
    "ubuntu_priority": "medium"
}

Ubuntu:24.10 / h2o

Package

Name
h2o
Purl
pkg:deb/ubuntu/h2o@2.2.5+dfsg2-8.1ubuntu3?arch=source&distro=oracular

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

2.*

2.2.5+dfsg2-8.1ubuntu3

Ecosystem specific 

{
    "ubuntu_priority": "medium"
}

Ubuntu:24.04:LTS / h2o

Package

Name
h2o
Purl
pkg:deb/ubuntu/h2o@2.2.5+dfsg2-8.1ubuntu3?arch=source&distro=noble

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

2.*

2.2.5+dfsg2-7
2.2.5+dfsg2-8
2.2.5+dfsg2-8.1ubuntu1
2.2.5+dfsg2-8.1ubuntu2
2.2.5+dfsg2-8.1ubuntu3

Ecosystem specific 

{
    "ubuntu_priority": "medium"
}

Ubuntu:25.04 / h2o

Package

Name
h2o
Purl
pkg:deb/ubuntu/h2o@2.2.5+dfsg2-11?arch=source&distro=plucky

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

2.*

2.2.5+dfsg2-8.1ubuntu3
2.2.5+dfsg2-11~build
2.2.5+dfsg2-11

Ecosystem specific 

{
    "ubuntu_priority": "medium"
}