Bug 2417306 (CVE-2025-63938)
| Summary: | CVE-2025-63938 tinyproxy: Tinyproxy integer overflow | ||
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| Product: | [Other] Security Response | Reporter: | OSIDB Bzimport <bzimport> |
| Component: | vulnerability | Assignee: | Product Security DevOps Team <prodsec-dev> |
| Status: | NEW --- | QA Contact: | |
| Severity: | medium | Docs Contact: | |
| Priority: | medium | ||
| Version: | unspecified | Keywords: | Security |
| Target Milestone: | --- | ||
| Target Release: | --- | ||
| Hardware: | All | ||
| OS: | Linux | ||
| Whiteboard: | |||
| Fixed In Version: | Doc Type: | --- | |
| Doc Text: |
An integer overflow flaw has been discovered in Tinyproxy. Tinyproxy parses the port variable with `sscanf (ptr1, "%d", &port)` and doesn't check ranges. This use of `sscanf` is vulnerable to integer overflow: if you send a port like `5000 + 2**32 = 4294972296`, it overflows and wraps back to 5000. This flaw may allow an attacker to bypass blocking logic which would otherwise prevent a port from being accessible.
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Story Points: | --- |
| Clone Of: | Environment: | ||
| Last Closed: | Type: | --- | |
| Regression: | --- | Mount Type: | --- |
| Documentation: | --- | CRM: | |
| Verified Versions: | Category: | --- | |
| oVirt Team: | --- | RHEL 7.3 requirements from Atomic Host: | |
| Cloudforms Team: | --- | Target Upstream Version: | |
| Embargoed: | |||
| Bug Depends On: | 2417326, 2417327, 2417328, 2417329, 2417330 | ||
| Bug Blocks: | |||
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Description
OSIDB Bzimport
2025-11-26 17:01:38 UTC
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