CVE-2023-39198: Kernel: qxl: race condition leading to use-after-free in qxl_mode_dumb_create()
First published: Wed Jun 28 2023(Updated: )
A race condition leading to a use-after-free issue was found in the QXL driver in the Linux kernel.
Credit: secalert@redhat.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| redhat/kernel | <6.5 | 6.5 |
| Linux Kernel | <6.5 | |
| Linux Kernel | =6.5-rc1 | |
| Linux Kernel | =6.5-rc2 | |
| Linux Kernel | =6.5-rc3 | |
| Linux Kernel | =6.5-rc4 | |
| Linux Kernel | =6.5-rc5 | |
| Linux Kernel | =6.5-rc6 | |
| Fedoraproject Fedora | =38 | |
| Red Hat Enterprise Linux | =8.0 | |
| Red Hat Enterprise Linux | =9.0 | |
| IBM InfoSphere Guardium z/OS | <=12.0 | |
| debian/linux | 5.10.223-1 5.10.226-1 6.1.123-1 6.1.119-1 6.12.11-1 6.12.12-1 |
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Reference Links
- https://exchange.xforce.ibmcloud.com/vulnerabilities/271585
- https://www.ibm.com/support/pages/node/7152469 (Advisory)
- https://bugzilla.redhat.com/show_bug.cgi?id=2218332
- https://access.redhat.com/security/cve/CVE-2023-39198
- https://access.redhat.com/errata/RHSA-2024:2394
- https://access.redhat.com/errata/RHSA-2024:2950
- https://access.redhat.com/errata/RHSA-2024:3138
- https://launchpad.net/bugs/cve/CVE-2023-39198
- https://github.com/torvalds/linux/commit/c611589b4259ed63b9b77be6872b1ce07ec0ac16
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=2248704
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-39198
- https://nvd.nist.gov/vuln/detail/CVE-2023-39198
- https://security-tracker.debian.org/tracker/CVE-2023-39198
- https://ubuntu.com/security/CVE-2023-39198
- https://lists.debian.org/debian-lts-announce/2024/06/msg00016.html
- https://git.kernel.org/linus/c611589b4259ed63b9b77be6872b1ce07ec0ac16
Frequently Asked Questions
What is the severity of CVE-2023-39198?
CVE-2023-39198 has a high severity rating due to the potential for a use-after-free vulnerability in the QXL driver.
How do I fix CVE-2023-39198?
To mitigate CVE-2023-39198, update your Linux kernel to version 6.5 or higher.
What systems are affected by CVE-2023-39198?
CVE-2023-39198 affects versions of the Linux kernel up to 6.5, including specific release candidates.
What is a use-after-free vulnerability in the context of CVE-2023-39198?
A use-after-free vulnerability like CVE-2023-39198 occurs when a program continues to use a pointer after the memory it points to has been freed.
Is CVE-2023-39198 specific to any distribution?
CVE-2023-39198 is primarily associated with Red Hat Enterprise Linux, Fedora, and Debian distributions.
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