CVE-2022-36765 Integer Overflow in CreateHob
An integer overflow in EDK2's CreateHob function allows local attackers to trigger a buffer overflow, potentially compromising system confidentiality, integrity, and availability.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2022-36765?
CVE-2022-36765 is a high-severity vulnerability in TianoCore edk2, published on 9 Jan 2024. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
EDK2 is susceptible to a vulnerability in the CreateHob() function, allowing a user to trigger a integer overflow to buffer overflow via a local network. Successful exploitation of this vulnerability may result in a compromise of confidentiality, integrity, and/or availability.
Which versions are affected by CVE-2022-36765?
It affects 1 product.
Linux distribution packages (17)
ovmf SUSE:Linux Enterprise High Performance Computing 15 SP4-ESPOS | All versions | 202202-150400.5.21.1 |
ovmf SUSE:Linux Enterprise High Performance Computing 15 SP4-LTSS | All versions | 202202-150400.5.21.1 |
ovmf SUSE:Linux Enterprise High Performance Computing 15 SP5-ESPOS | All versions | 202208-150500.6.12.1 |
ovmf SUSE:Linux Enterprise High Performance Computing 15 SP5-LTSS | All versions | 202208-150500.6.12.1 |
ovmf SUSE:Linux Enterprise Micro 5.3 | All versions | 202202-150400.5.21.1 |
ovmf SUSE:Linux Enterprise Micro 5.4 | All versions | 202202-150400.5.21.1 |
ovmf SUSE:Linux Enterprise Micro 5.5 | All versions | 202208-150500.6.12.1 |
ovmf SUSE:Linux Enterprise Server 12 SP5-LTSS | All versions | 2017+git1510945757.b2662641d5-3.49.1 |
ovmf SUSE:Linux Enterprise Server 15 SP4-LTSS | All versions | 202202-150400.5.21.1 |
ovmf SUSE:Linux Enterprise Server 15 SP5-LTSS | All versions | 202208-150500.6.12.1 |
ovmf SUSE:Linux Enterprise Server 15 SP6-LTSS | All versions | 202308-150600.5.25.1 |
ovmf SUSE:Linux Enterprise Server LTSS Extended Security 12 SP5 | All versions | 2017+git1510945757.b2662641d5-3.49.1 |
ovmf SUSE:Linux Enterprise Server for SAP Applications 15 SP4 | All versions | 202202-150400.5.21.1 |
ovmf SUSE:Linux Enterprise Server for SAP Applications 15 SP5 | All versions | 202208-150500.6.12.1 |
ovmf SUSE:Linux Enterprise Server for SAP Applications 15 SP6 | All versions | 202308-150600.5.25.1 |
ovmf SUSE:Linux Micro 6.0 | All versions | 202305-3.1 |
ovmf openSUSE:Leap 15.6 | All versions | 202308-150600.5.25.1 |
Products include Tianocore Edk2.
How do I fix CVE-2022-36765?
Apply the vendor's patch.
Is CVE-2022-36765 being exploited?
There is no known exploitation of CVE-2022-36765 in the wild and no public exploit code.
Other vulnerabilities in TianoCore edk2
Sources
Also known as AZL-38920, AZL-39424, AZL-39556, BELL-CVE-2022-36765, DEBIAN-CVE-2022-36765, GHSA-ch4w-v7m3-g8wx and 7 more.