CVE-2023-45898: Use After Free
First published: Mon Oct 16 2023(Updated: )
Last updated 30 August 2024
Credit: cve@mitre.org cve@mitre.org cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Linux Kernel | >=6.5<6.5.4 | |
| Linux Kernel | <6.5.4 | |
| debian/linux | 5.10.223-1 5.10.234-1 6.1.129-1 6.1.128-1 6.12.21-1 |
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Reference Links
- https://cdn.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.5.4
- https://github.com/torvalds/linux/commit/768d612f79822d30a1e7d132a4d4b05337ce42ec
- https://lkml.org/lkml/2023/8/13/477
- https://lore.kernel.org/lkml/aa03f191-445c-0d2e-d6d7-0a3208d7df7a@huawei.com/T/
- https://www.spinics.net/lists/stable-commits/msg317086.html
- https://launchpad.net/bugs/cve/CVE-2023-45898
- https://lore.kernel.org/lkml/aa03f191-445c-0d2e-d6d7-0a3208d7df7a%40huawei.com/T/
- https://git.kernel.org/linus/768d612f79822d30a1e7d132a4d4b05337ce42ec
- https://security-tracker.debian.org/tracker/CVE-2023-45898
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-45898
- https://nvd.nist.gov/vuln/detail/CVE-2023-45898
- https://ubuntu.com/security/CVE-2023-45898
Frequently Asked Questions
What is CVE-2023-45898?
CVE-2023-45898 is a vulnerability in the Linux kernel before version 6.5.4 that allows for a use-after-free in fs/ext4/extents_status.c related to ext4_es_insert_extent.
How severe is CVE-2023-45898?
CVE-2023-45898 has a severity score of 7.8, which is considered high.
How do I know if my software is affected by CVE-2023-45898?
If you are using Linux kernel version before 6.5.4, your software may be affected by CVE-2023-45898.
How can I fix CVE-2023-45898?
To fix CVE-2023-45898, you should update your Linux kernel to version 6.5.4 or later.
Where can I find more information about CVE-2023-45898?
You can find more information about CVE-2023-45898 on the following references: [Reference 1](https://cdn.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.5.4), [Reference 2](https://github.com/torvalds/linux/commit/768d612f79822d30a1e7d132a4d4b05337ce42ec), [Reference 3](https://lkml.org/lkml/2023/8/13/477).
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