high
7.8
CWE
476
Advisory Published
Updated

CVE-2022-38096: There is a NULL pointer vulnerability in vmwgfx driver

First published: Tue Sep 06 2022(Updated: )

A NULL pointer dereference issue was found in the Linux kernel's vmwgfx driver in vmw_cmd_dx_define_query. Systems making use of the vmwgfx driver are potentially affected by this flaw. Exploiting the bug would require an attacker to have access to either /dev/dri/card0 or /dev/dri/rendererD128 and be able to issue an ioctl() on the resulting file descriptor. Under certain circumstances a local unprivileged user could use this flaw to crash the system, causing a denial of service. Reference: <a href="https://bugzilla.openanolis.cn/show_bug.cgi?id=2073">https://bugzilla.openanolis.cn/show_bug.cgi?id=2073</a>

Credit: security@openanolis.org security@openanolis.org

Affected SoftwareAffected VersionHow to fix
Linux Kernel>=4.20
IBM Security QRadar<=7.5 - 7.5.0 UP8 IF01
debian/linux
5.10.223-1
5.10.234-1
6.1.129-1
6.1.128-1
6.12.21-1
6.12.22-1

Remedy

https://git.kernel.org/linus/9c079b8ce8bf8e0394149eb39c78b04285644bcc

Remedy

https://git.kernel.org/linus/517621b7060096e48e42f545fa6646fc00252eac

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Reference Links

Parent vulnerabilities

(Appears in the following advisories)

Frequently Asked Questions

  • What is the severity of CVE-2022-38096?

    CVE-2022-38096 is a medium severity vulnerability due to the NULL pointer dereference in the vmwgfx driver.

  • How do I fix CVE-2022-38096?

    To mitigate CVE-2022-38096, upgrade to the patched versions of the Linux kernel and ensure the vmwgfx driver is updated.

  • Which products are affected by CVE-2022-38096?

    CVE-2022-38096 affects the Linux kernel versions from 4.20 and IBM QRadar SIEM versions up to 7.5.0 UP8 IF01.

  • What type of vulnerability is CVE-2022-38096?

    CVE-2022-38096 is classified as a NULL pointer dereference vulnerability in the Linux kernel's vmwgfx driver.

  • Can CVE-2022-38096 be exploited remotely?

    Exploitation of CVE-2022-38096 requires local access to the affected system, specifically to /dev/dri/card0 or similar devices.

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