CVE-2023-52696: powerpc/powernv: Add a null pointer check in opal_powercap_init()
First published: Fri May 17 2024(Updated: )
In the Linux kernel, the following vulnerability has been resolved: powerpc/powernv: Add a null pointer check in opal_powercap_init() kasprintf() returns a pointer to dynamically allocated memory which can be NULL upon failure.
Credit: 416baaa9-dc9f-4396-8d5f-8c081fb06d67 416baaa9-dc9f-4396-8d5f-8c081fb06d67
| Affected Software | Affected Version | How to fix |
|---|---|---|
| redhat/kernel | <5.4.268 | 5.4.268 |
| redhat/kernel | <5.10.209 | 5.10.209 |
| redhat/kernel | <5.15.148 | 5.15.148 |
| redhat/kernel | <6.1.75 | 6.1.75 |
| redhat/kernel | <6.6.14 | 6.6.14 |
| redhat/kernel | <6.7.2 | 6.7.2 |
| redhat/kernel | <6.8 | 6.8 |
| Linux Kernel | >=4.20<5.4.268 | |
| Linux Kernel | >=5.5<5.10.209 | |
| Linux Kernel | >=5.11<5.15.148 | |
| Linux Kernel | >=5.16<6.1.75 | |
| Linux Kernel | >=6.2<6.6.14 | |
| Linux Kernel | >=6.7<6.7.2 | |
| Debian Linux | =10.0 | |
| debian/linux | 5.10.223-1 5.10.234-1 6.1.129-1 6.1.133-1 6.12.21-1 6.12.22-1 |
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Reference Links
- https://git.kernel.org/stable/c/69f95c5e9220f77ce7c540686b056c2b49e9a664
- https://git.kernel.org/stable/c/6b58d16037217d0c64a2a09b655f370403ec7219
- https://git.kernel.org/stable/c/9da4a56dd3772570512ca58aa8832b052ae910dc
- https://git.kernel.org/stable/c/a67a04ad05acb56640798625e73fa54d6d41cce1
- https://git.kernel.org/stable/c/b02ecc35d01a76b4235e008d2dd292895b28ecab
- https://git.kernel.org/stable/c/e123015c0ba859cf48aa7f89c5016cc6e98e018d
- https://git.kernel.org/stable/c/f152a6bfd187f67afeffc9fd68cbe46f51439be0
- https://launchpad.net/bugs/cve/CVE-2023-52696
- https://access.redhat.com/security/cve/CVE-2023-52696
- https://lore.kernel.org/linux-cve-announce/2024051755-CVE-2023-52696-d4ab@gregkh/T
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=2281291
- https://access.redhat.com/errata/RHSA-2024:9315
- https://bugzilla.redhat.com/show_bug.cgi?id=2281290
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-52696
- https://nvd.nist.gov/vuln/detail/CVE-2023-52696
- https://security-tracker.debian.org/tracker/CVE-2023-52696
- https://ubuntu.com/security/CVE-2023-52696
- https://lists.debian.org/debian-lts-announce/2024/06/msg00016.html
- https://git.kernel.org/linus/e123015c0ba859cf48aa7f89c5016cc6e98e018d
Frequently Asked Questions
What is the severity of CVE-2023-52696?
CVE-2023-52696 has been classified as a medium severity vulnerability in the Linux kernel.
How do I fix CVE-2023-52696?
To fix CVE-2023-52696, update your kernel to version 5.4.268, 5.10.209, 5.15.148, 6.1.75, or higher versions as specified.
What systems are affected by CVE-2023-52696?
CVE-2023-52696 affects multiple versions of the Linux kernel used in various distributions, including Red Hat and Debian.
What type of vulnerability is CVE-2023-52696?
CVE-2023-52696 is a null pointer dereference vulnerability within the powerpc/powernv module of the Linux kernel.
When was CVE-2023-52696 disclosed?
CVE-2023-52696 was disclosed in 2023 as part of a series of kernel security updates.
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