CVE-2023-52581: netfilter: nf_tables: fix memleak when more than 255 elements expired
First published: Sat Mar 02 2024(Updated: )
In the Linux kernel, the following vulnerability has been resolved: netfilter: nf_tables: fix memleak when more than 255 elements expired The Linux kernel CVE team has assigned <a href="https://access.redhat.com/security/cve/CVE-2023-52581">CVE-2023-52581</a> to this issue. Upstream advisory: <a href="https://lore.kernel.org/linux-cve-announce/2024030258-CVE-2023-52581-2165@gregkh/T/#u">https://lore.kernel.org/linux-cve-announce/2024030258-CVE-2023-52581-2165@gregkh/T/#u</a>
Credit: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
| Affected Software | Affected Version | How to fix |
|---|---|---|
| redhat/kernel | <6.5.6 | 6.5.6 |
| redhat/kernel | <6.6 | 6.6 |
| Linux Kernel | >=6.5<6.5.6 | |
| Linux Kernel | =6.6-rc1 | |
| Linux Kernel | =6.6-rc2 | |
| 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://access.redhat.com/security/cve/CVE-2023-52581
- https://lore.kernel.org/linux-cve-announce/2024030258-CVE-2023-52581-2165@gregkh/T/#u
- 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://bugzilla.redhat.com/show_bug.cgi?id=2267761
- https://git.kernel.org/stable/c/7cf055b43756b10aa2b851c927c940f5ed652125
- https://git.kernel.org/stable/c/a995a68e8a3b48533e47c856865d109a1f1a9d01
- https://git.kernel.org/stable/c/09c85f2d21ab6b5acba31a037985b13e8e6565b8
- https://git.kernel.org/stable/c/ef99506eaf1dc31feff1adfcfd68bc5535a22171
- https://git.kernel.org/stable/c/7e5d732e6902eb6a37b35480796838a145ae5f07
- https://git.kernel.org/stable/c/4aea243b6853d06c1d160a9955b759189aa02b14
- https://git.kernel.org/stable/c/cf5000a7787cbc10341091d37245a42c119d26c5
- https://www.ibm.com/support/pages/node/7230443 (Advisory)
Frequently Asked Questions
What is the severity of CVE-2023-52581?
CVE-2023-52581 has a severity rating of medium due to the potential for memory leaks in the Linux kernel's netfilter functionality.
How do I fix CVE-2023-52581?
To fix CVE-2023-52581, upgrade your Linux kernel to version 6.5.6 or later, or to version 6.6.
What systems are affected by CVE-2023-52581?
CVE-2023-52581 affects systems running vulnerable versions of the Linux kernel prior to 6.5.6 and 6.6.
What is the nature of the issue described in CVE-2023-52581?
CVE-2023-52581 involves a memory leak issue when more than 255 elements expire in the netfilter subsystem of the Linux kernel.
Is CVE-2023-52581 being actively exploited?
As of now, there are no reports indicating that CVE-2023-52581 is being actively exploited in the wild.
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