PT-2023-5458 · Notepad++ · Notepad++

Jaroslav Lobačevski · Published 2023-08-25 · Updated 2023-09-11 · CVE-2023-40036

Positive Technologies (AI Summary)

CVSS v3.1

5.5

Medium

Base vector

AV: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.

Exploit

Fix

Buffer Overflow

Weakness Enumeration

CWE-119

CWE-120

Related Identifiers

BDU:2023-06088

CVE-2023-40036

Affected Products

Notepad++

References · 20

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/40xxx/CVE-2023-40036.json · Exploit
• 🔥 https://securitylab.github.com/advisories/GHSL-2023-092_Notepad__ · Exploit
• https://bdu.fstec.ru/vul/2023-06088 · Security Note
• https://osv.dev/vulnerability/CVE-2023-40036 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2023-40036 · Security Note
• https://twitter.com/fletch_ai/status/1701371820476113007 · Twitter Post
• https://twitter.com/BenitoMourelo/status/1701283663076319326 · Twitter Post
• https://twitter.com/CVEnew/status/1695349770074673602 · Twitter Post
• https://twitter.com/Notepad_plus/status/1699943378471797150 · Twitter Post
• https://twitter.com/flacon8x/status/1700108685773586697 · Twitter Post
• https://twitter.com/sangam_goel/status/1696589443098919295 · Twitter Post
• https://vuldb.com/ru/?id.238065 · Note
• https://t.me/nekaspersky/3252 · Telegram Post
• https://t.me/cibsecurity/69218 · Telegram Post
• https://twitter.com/CVEnew/status/1695532863205048774 · Twitter Post