CVE-2023-52389

Published: 27 January 2024

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.

Priority

Cvss 3 Severity Score

9.8

Score breakdown

Status

Package	Release	Status
poco Launchpad, Ubuntu, Debian	bionic	Needs triage
	focal	Needs triage
	jammy	Needs triage
	mantic	Needs triage
	noble	Needs triage
	trusty	Needs triage
	upstream	Needs triage
	xenial	Needs triage

Severity score breakdown

Parameter	Value
Base score	9.8
Attack vector	Network
Attack complexity	Low
Privileges required	None
User interaction	None
Scope	Unchanged
Confidentiality	High
Integrity impact	High
Availability impact	High
Vector	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

References

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