Source: golang-github-sigstore-timestamp-authority
Version: 1.2.9-1
Severity: important
Tags: security upstream
X-Debbugs-Cc: [email protected], Debian Security Team <[email protected]>

Hi,

The following vulnerability was published for 
golang-github-sigstore-timestamp-authority.

CVE-2025-66564[0]:
| 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.


If you fix the vulnerability please also make sure to include the
CVE (Common Vulnerabilities & Exposures) id in your changelog entry.

For further information see:

[0] https://security-tracker.debian.org/tracker/CVE-2025-66564
    https://www.cve.org/CVERecord?id=CVE-2025-66564
[1] 
https://github.com/sigstore/timestamp-authority/security/advisories/GHSA-4qg8-fj49-pxjh
[2] 
https://github.com/sigstore/timestamp-authority/commit/0cae34e197d685a14904e0bad135b89d13b69421

Please adjust the affected versions in the BTS as needed.

Regards,
Salvatore

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