Source: protobuf
Version: 3.21.12-11
Severity: important
Tags: security upstream
X-Debbugs-Cc: [email protected], Debian Security Team <[email protected]>

Hi,

The following vulnerability was published for protobuf.

CVE-2025-4565[0]:
| Any project that uses Protobuf Pure-Python backend to parse
| untrusted Protocol Buffers data containing an arbitrary number of
| recursive groups, recursive messages or a series of SGROUP tags can
| be corrupted by exceeding the Python recursion limit. This can
| result in a Denial of service by crashing the application with a
| RecursionError. We recommend upgrading to version =>6.31.1 or beyond
| commit 17838beda2943d08b8a9d4df5b68f5f04f26d901


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-2025-4565
    https://www.cve.org/CVERecord?id=CVE-2025-4565
[1] 
https://github.com/protocolbuffers/protobuf/commit/17838beda2943d08b8a9d4df5b68f5f04f26d901

Please adjust the affected versions in the BTS as needed.

Regards,
Salvatore

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