CVE-2023-52389

CRITICAL

POCO < 1.11.8 - Integer Overflow and Stack Buffer Overflow in UTF32Encoding

Title source: llm
STIX 2.1

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.

References (4)

Core 4

Scores

CVSS v3 9.8
EPSS 0.0085
EPSS Percentile 53.4%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CISA SSVC

Vulnrichment
Exploitation none
Automatable yes
Technical Impact total

Details

CWE
CWE-190
Status published
Products (3)
pocoproject/poco 1.11.8 (2 CPE variants)
pocoproject/poco 1.12.5
pocoproject/poco < 1.11.8
Published Jan 27, 2024
Tracked Since Feb 18, 2026