| Name | CVE-2025-4565 |
| Description | 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 |
| Source | CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more) |
| Debian Bugs | 1108057 |
Vulnerable and fixed packages
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|
| protobuf (PTS) | bullseye | 3.12.4-1+deb11u1 | vulnerable |
| bookworm | 3.21.12-3 | vulnerable |
| trixie, sid | 3.21.12-11 | vulnerable |
The information below is based on the following data on fixed versions.
| Package | Type | Release | Fixed Version | Urgency | Origin | Debian Bugs |
|---|
| protobuf | source | (unstable) | (unfixed) | | | 1108057 |
Notes
[bookworm] - protobuf <no-dsa> (Minor issue)
[bullseye] - protobuf <postponed> (Minor issue; can be fixed in next update)
https://github.com/protocolbuffers/protobuf/commit/17838beda2943d08b8a9d4df5b68f5f04f26d901