PT-2023-5458

CVE-2023-40036

Published

2023-08-25

Updated

2023-09-11

Description by

CVSS 3.1

5.5

Medium

MetricsAV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N

Name of the Vulnerable Software and Affected Versions Notepad++ versions 8.5.6 and prior

Description The issue is related to a global buffer read overflow in the CharDistributionAnalysis::HandleOneChar function. This may potentially be used to leak internal memory allocation information. The exploitability of this issue is not clear.

Recommendations For Notepad++ versions 8.5.6 and prior, update to version 8.5.7 to resolve the issue. As a temporary workaround, consider disabling the CharDistributionAnalysis::HandleOneChar function until a patch is available.

Exploitability

Exploit

Fix

Impacts

Researchers

Jaroslav Lobačevski

Vendors

Affected products

Weakness enumeration

CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer

CWE-120: Buffer Copy without Checking Size of Input (\'Classic Buffer Overflow\')

Related identifiers