PT-2023-25009 · Xlsxio · Xlsxio

Published 2023-06-16 · Updated 2023-06-27 · CVE-2023-34795

Positive Technologies (AI Summary)

CVSS v3.1

7.8

High

Base vector

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

Name of the Vulnerable Software and Affected Versions xlsxio versions 0.1.2 through 0.2.34

Description The issue is related to a free of an uninitialized pointer in the xlsxioread sheetlist close() function, which can be exploited by attackers to cause a Denial of Service (DoS) via a crafted XLSX file.

Recommendations For versions 0.1.2 through 0.2.34, consider disabling the xlsxioread sheetlist close() function as a temporary workaround until a patch is available. Restrict access to crafted XLSX files to minimize the risk of exploitation.

Exploit

Fix

Use After Free

Weakness Enumeration

CWE-416

Related Identifiers

CVE-2023-34795

Affected Products

Xlsxio

References · 5

• 🔥 https://github.com/brechtsanders/xlsxio/issues/121 · Exploit
• 🔥 https://github.com/xf1les/cve-advisories/blob/main/2023/CVE-2023-34795.md · Exploit
• https://github.com/brechtsanders/xlsxio/commit/d653f1604b54532f11b45dca1fa164b4a1f15e2d · Patch
• https://osv.dev/vulnerability/CVE-2023-34795 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2023-34795 · Security Note