Description
Any project that parses untrusted Protocol Buffers data containing an arbitrary number of nested groups / series of SGROUP tags can corrupted by exceeding the stack limit i.e. StackOverflow. Parsing nested groups as unknown fields with DiscardUnknownFieldsParser or Java Protobuf Lite parser, or against Protobuf map fields, creates unbounded recursions that can be abused by an attacker.
Details
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Affected Packages
| Software | From version | Fixed in |
|---|---|---|
| protobuf | — | 3.21.12-8.2ubuntu0.1 |
References
Similar Threats
- Unknown CLSA-2026-1772451263
- Unknown CLSA-2026-1772453362
- Unknown ALSA-2026:3094
- Unknown ALSA-2026:3095
- Unknown AZL-75830
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