UBUNTU-CVE-2025-66564

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Source
https://ubuntu.com/security/CVE-2025-66564
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2025/UBUNTU-CVE-2025-66564.json
JSON Data
https://api.test.osv.dev/v1/vulns/UBUNTU-CVE-2025-66564
Upstream
Published
2025-12-04T23:15:00Z
Modified
2025-12-11T08:51:47.097614Z
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
  • Ubuntu - medium
Summary
[none]
Details

Sigstore Timestamp Authority is a service for issuing RFC 3161 timestamps. Prior to 2.0.3, Function api.ParseJSONRequest currently splits (via a call to strings.Split) an optionally-provided OID (which is untrusted data) on periods. Similarly, function api.getContentType splits the Content-Type header (which is also untrusted data) on an application string. As a result, in the face of a malicious request with either an excessively long OID in the payload containing many period characters or a malformed Content-Type header, a call to api.ParseJSONRequest or api.getContentType incurs allocations of O(n) bytes (where n stands for the length of the function's argument). This vulnerability is fixed in 2.0.3.

References

Affected packages

Ubuntu:25.10 / golang-github-sigstore-timestamp-authority

Package

Name
golang-github-sigstore-timestamp-authority
Purl
pkg:deb/ubuntu/golang-github-sigstore-timestamp-authority@1.2.3-2?arch=source&distro=questing

Affected ranges

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

Affected versions

1.*

1.2.3-2

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "1.2.3-2",
            "binary_name": "golang-github-sigstore-timestamp-authority-dev"
        }
    ]
}

Ubuntu:25.04 / golang-github-sigstore-timestamp-authority

Package

Name
golang-github-sigstore-timestamp-authority
Purl
pkg:deb/ubuntu/golang-github-sigstore-timestamp-authority@1.2.3-2?arch=source&distro=plucky

Affected ranges

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

Affected versions

1.*

1.2.3-2

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "1.2.3-2",
            "binary_name": "golang-github-sigstore-timestamp-authority-dev"
        }
    ]
}