CVE-2023-34795 Use after free in n/a
Attackers can cause a denial of service via a crafted XLSX file due to a use-after-free vulnerability in the xlsxio library.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2023-34795?
CVE-2023-34795 is a high-severity use after free vulnerability in n/a, published on 16 Jun 2023. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.
Official description
xlsxio v0.1.2 to v0.2.34 was discovered to contain a free of uninitialized pointer in the xlsxioread_sheetlist_close() function. This vulnerability allows attackers to cause a Denial of Service (DoS) via a crafted XLSX file.
Weakness: CWE-416
Which versions are affected by CVE-2023-34795?
It affects 1 product.
Products include Xlsxio Project Xlsxio.
How do I fix CVE-2023-34795?
No fix has been published for CVE-2023-34795 yet. Limit exposure of the affected software until one is available.
Upgrade to the fixed version. These bugs are found with fuzzing and sanitisers and avoided by memory-safe languages. More about Use after free.
Is CVE-2023-34795 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2023-34795 exists.
Sources
Also known as GHSA-4462-822p-62r3.