CVE-2023-52607: powerpc/mm: Fix null-pointer dereference in pgtable_cache_add
First published: Wed Mar 06 2024(Updated: )
In the Linux kernel, the following vulnerability has been resolved: powerpc/mm: Fix null-pointer dereference in pgtable_cache_add kasprintf() returns a pointer to dynamically allocated memory which can be NULL upon failure. Ensure the allocation was successful by checking the pointer validity.
Credit: 416baaa9-dc9f-4396-8d5f-8c081fb06d67 416baaa9-dc9f-4396-8d5f-8c081fb06d67
| Affected Software | Affected Version | How to fix |
|---|---|---|
| redhat/kernel | <4.19.307 | 4.19.307 |
| redhat/kernel | <5.4.269 | 5.4.269 |
| redhat/kernel | <5.10.210 | 5.10.210 |
| redhat/kernel | <5.15.149 | 5.15.149 |
| redhat/kernel | <6.1.77 | 6.1.77 |
| redhat/kernel | <6.6.16 | 6.6.16 |
| redhat/kernel | <6.7.4 | 6.7.4 |
| redhat/kernel | <6.8 | 6.8 |
| Linux Kernel | <4.19.307 | |
| Linux Kernel | >=4.20<=5.4.269 | |
| Linux Kernel | >=5.5<=5.10.210 | |
| Linux Kernel | >=5.11<=5.15.149 | |
| Linux Kernel | >=5.16<6.1.77 | |
| Linux Kernel | >=6.2<6.6.16 | |
| Linux Kernel | >=6.7<6.7.4 | |
| debian/linux | 5.10.223-1 5.10.234-1 6.1.129-1 6.1.128-1 6.12.21-1 | |
| IBM Security Verify Governance - Identity Manager | <=ISVG 10.0.2 | |
| IBM Security Verify Governance, Identity Manager Software Stack | <=ISVG 10.0.2 | |
| IBM Security Verify Governance, Identity Manager Virtual Appliance | <=ISVG 10.0.2 | |
| IBM Security Verify Governance Identity Manager Container | <=ISVG 10.0.2 |
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Reference Links
- https://git.kernel.org/stable/c/145febd85c3bcc5c74d87ef9a598fc7d9122d532
- https://git.kernel.org/stable/c/21e45a7b08d7cd98d6a53c5fc5111879f2d96611
- https://git.kernel.org/stable/c/aa28eecb43cac6e20ef14dfc50b8892c1fbcda5b
- https://git.kernel.org/stable/c/ac3ed969a40357b0542d20f096a6d43acdfa6cc7
- https://git.kernel.org/stable/c/d482d61025e303a2bef3733a011b6b740215cfa1
- https://git.kernel.org/stable/c/f46c8a75263f97bda13c739ba1c90aced0d3b071
- https://git.kernel.org/stable/c/f6781add1c311c17eff43e14c786004bbacf901e
- https://git.kernel.org/stable/c/ffd29dc45bc0355393859049f6becddc3ed08f74
- https://launchpad.net/bugs/cve/CVE-2023-52607
- https://access.redhat.com/security/cve/CVE-2023-52607
- https://lore.kernel.org/linux-cve-announce/2024030647-CVE-2023-52607-75d1@gregkh/T
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=2268292
- https://access.redhat.com/errata/RHSA-2024:3618
- https://bugzilla.redhat.com/show_bug.cgi?id=2268291
- https://lists.debian.org/debian-lts-announce/2024/06/msg00017.html
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-52607
- https://nvd.nist.gov/vuln/detail/CVE-2023-52607
- https://security-tracker.debian.org/tracker/CVE-2023-52607
- https://ubuntu.com/security/CVE-2023-52607
- https://git.kernel.org/linus/f46c8a75263f97bda13c739ba1c90aced0d3b071
- https://www.ibm.com/support/pages/node/7230443 (Advisory)
Frequently Asked Questions
What is the severity of CVE-2023-52607?
CVE-2023-52607 is classified as a medium severity vulnerability affecting the Linux kernel.
How do I fix CVE-2023-52607?
To fix CVE-2023-52607, update your Linux kernel to one of the patched versions listed in the vulnerability report.
Which versions of the Linux kernel are affected by CVE-2023-52607?
CVE-2023-52607 affects multiple kernel versions, including those prior to 4.19.307, 5.4.269, 5.10.210, 5.15.149, 6.1.77, 6.6.16, 6.7.4, and 6.8.
What kind of issue does CVE-2023-52607 represent in the Linux kernel?
CVE-2023-52607 represents a null-pointer dereference vulnerability in the Linux kernel's powerpc/mm implementation.
Is there a specific mitigation for CVE-2023-52607 prior to patching?
There is no specific mitigation for CVE-2023-52607 other than updating the kernel; users should apply the patches as soon as possible.
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