UBUNTU-CVE-2025-9648

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Source
https://ubuntu.com/security/CVE-2025-9648
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2025/UBUNTU-CVE-2025-9648.json
JSON Data
https://api.osv.dev/v1/vulns/UBUNTU-CVE-2025-9648
Upstream
Published
2025-09-29T12:15:00Z
Modified
2026-01-20T19:17:35.499802Z
Severity
  • 8.7 (High) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N CVSS Calculator
  • Ubuntu - medium
Summary
[none]
Details

A vulnerability in the CivetWeb library's function mghandleform_request allows remote attackers to trigger a denial of service (DoS) condition. By sending a specially crafted HTTP POST request containing a null byte in the payload, the server enters an infinite loop during form data parsing. Multiple malicious requests will result in complete CPU exhaustion and render the service unresponsive to further requests. This issue was fixed in commit 782e189. This issue affects only the library, standalone executable pre-built by vendor is not affected.

References

Affected packages

Ubuntu:22.04:LTS / civetweb

Package

Name
civetweb
Purl
pkg:deb/ubuntu/civetweb@1.15+dfsg-3?arch=source&distro=jammy

Affected ranges

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

Affected versions

1.*
1.13+dfsg-5
1.15+dfsg-1
1.15+dfsg-3

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "1.15+dfsg-3",
            "binary_name": "civetweb"
        },
        {
            "binary_version": "1.15+dfsg-3",
            "binary_name": "libcivetweb-dev"
        },
        {
            "binary_version": "1.15+dfsg-3",
            "binary_name": "libcivetweb1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2025/UBUNTU-CVE-2025-9648.json"

Ubuntu:24.04:LTS / civetweb

Package

Name
civetweb
Purl
pkg:deb/ubuntu/civetweb@1.16+dfsg-1build1?arch=source&distro=noble

Affected ranges

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

Affected versions

1.*
1.16+dfsg-1
1.16+dfsg-1build1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "1.16+dfsg-1build1",
            "binary_name": "civetweb"
        },
        {
            "binary_version": "1.16+dfsg-1build1",
            "binary_name": "libcivetweb-dev"
        },
        {
            "binary_version": "1.16+dfsg-1build1",
            "binary_name": "libcivetweb1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2025/UBUNTU-CVE-2025-9648.json"

Ubuntu:25.10 / civetweb

Package

Name
civetweb
Purl
pkg:deb/ubuntu/civetweb@1.16+dfsg-2?arch=source&distro=questing

Affected ranges

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

Affected versions

1.*
1.16+dfsg-2

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "1.16+dfsg-2",
            "binary_name": "civetweb"
        },
        {
            "binary_version": "1.16+dfsg-2",
            "binary_name": "libcivetweb-dev"
        },
        {
            "binary_version": "1.16+dfsg-2",
            "binary_name": "libcivetweb1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2025/UBUNTU-CVE-2025-9648.json"