CVE-2023-40238 Integer overflow in n/a
Attackers can execute arbitrary code during UEFI boot via crafted BMP files exploiting an integer signedness error in Lenovo devices.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2023-40238?
CVE-2023-40238 is a medium-severity vulnerability in Insyde Insydeh2o, published on 7 Dec 2023. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
A LogoFAIL issue was discovered in BmpDecoderDxe in Insyde InsydeH2O with kernel 5.2 before 05.28.47, 5.3 before 05.37.47, 5.4 before 05.45.47, 5.5 before 05.53.47, and 5.6 before 05.60.47 for certain Lenovo devices. Image parsing of crafted BMP logo files can copy data to a specific address during the DXE phase of UEFI execution. This occurs because of an integer signedness error involving PixelHeight and PixelWidth during RLE4/RLE8 compression.
Weakness: CWE-312
Which versions are affected by CVE-2023-40238?
It affects 187 products.
Products include Fujitsu Celsius C780 Firmware, Fujitsu Celsius H5511 Firmware, Fujitsu Celsius H7510 Firmware, Fujitsu Celsius H7613 Firmware, Fujitsu Celsius H780 Firmware, Fujitsu Celsius H980 Firmware and 181 more.
How do I fix CVE-2023-40238?
No fix has been published for CVE-2023-40238 yet. Limit exposure of the affected software until one is available.
Is CVE-2023-40238 being exploited?
There is no known exploitation of CVE-2023-40238 in the wild and no public exploit code.
Sources
Also known as GHSA-5rp3-83j5-w2g4.