CVE-2023-52389
Last modified
CVE-2023-52389 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. UTF32Encoding.cpp in POCO has a Poco::UTF32Encoding integer overflow and resultant stack buffer overflow because Poco::UTF32Encoding::convert() and Poco::UTF32::queryConvert() may return a negative integer if a UTF-32 byte sequence evaluates to a value of 0x80000000 or higher. This is fixed in 1.11.8p2, 1.12.5p2, and 1.13.0.. EPSS estimates a 0.85% chance of exploitation in the next 30 days.
Description
UTF32Encoding.cpp in POCO has a Poco::UTF32Encoding integer overflow and resultant stack buffer overflow because Poco::UTF32Encoding::convert() and Poco::UTF32::queryConvert() may return a negative integer if a UTF-32 byte sequence evaluates to a value of 0x80000000 or higher. This is fixed in 1.11.8p2, 1.12.5p2, and 1.13.0.
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Pocoproject | Poco | < 1.11.8 |
| Pocoproject | Poco | >= 1.12.0, < 1.12.5 |
| Pocoproject | Poco | 1.11.8 |
| Pocoproject | Poco | 1.12.5 |
References
- https://pocoproject.org/blog/?p=1226Release Notes
- https://pocoproject.org/blog/?p=1226Release Notes
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
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How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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