CVE-2023-26076: Buffer Overflow
An issue was discovered in Samsung Mobile Chipset and Baseband Modem Chipset for Exynos 1280, Exynos 2200, Exynos Modem 5123, Exynos Modem 5300, and Exynos Auto T5123. An intra-object overflow in the 5G SM message codec can occur due to insufficient parameter validation when decoding reserved options.
Other sources
In TBD of TBD, there is a possible out of bounds write due to a heap buffer overflow. This could lead to remote code execution with no additional execution privileges needed. User interaction is not needed for exploitation.
— OSV
Affected Software
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade
android/:unknown:to a version that resolves this vulnerability.Fixed in Pixel-family specific:2023-04-05
Event History
Frequently Asked Questions
What is CVE-2023-26076?
CVE-2023-26076 is an issue discovered in Samsung Mobile Chipset and Baseband Modem Chipset for Exynos 1280, Exynos 2200, Exynos Modem 5123, Exynos Modem 5300, and Exynos Auto T5123. An intra-object overflow in the 5G SM message codec can occur due to insufficient parameter validation when decoding reserved option.
How severe is CVE-2023-26076?
CVE-2023-26076 is classified as a critical vulnerability with a severity score of 9.8 out of 10.
Which software versions are affected by CVE-2023-26076?
CVE-2023-26076 affects Samsung Exynos 1280 Firmware, Samsung Exynos 2200 Firmware, Samsung Exynos Modem 5123 Firmware, Samsung Exynos Modem 5300 Firmware, and Samsung Exynos Auto T5123 Firmware.
How can I fix CVE-2023-26076?
There is no specific fix available for CVE-2023-26076 at the moment. It is recommended to follow the guidance provided by Samsung and apply any security patches or updates they release.
Where can I find more information about CVE-2023-26076?
You can find more information about CVE-2023-26076 at the following references: [Packet Storm Security](http://packetstormsecurity.com/files/171400/Shannon-Baseband-NrSmPcoCodec-Intra-Object-Overflow.html), [Google Project Zero](https://googleprojectzero.blogspot.com/2023/03/multiple-internet-to-baseband-remote-rce.html), [Samsung Semiconductor](https://semiconductor.samsung.com/processor/mobile-processor/).