CVE-2023-52600: jfs: fix uaf in jfs_evict_inode
First published: Wed Mar 06 2024(Updated: )
In the Linux kernel, the following vulnerability has been resolved: jfs: fix uaf in jfs_evict_inode When the execution of diMount(ipimap) fails, the object ipimap that has been released may be accessed in diFreeSpecial(). Asynchronous ipimap release occurs when rcu_core() calls jfs_free_node(). Therefore, when diMount(ipimap) fails, sbi->ipimap should not be initialized as ipimap.
Credit: 416baaa9-dc9f-4396-8d5f-8c081fb06d67 416baaa9-dc9f-4396-8d5f-8c081fb06d67
| Affected Software | Affected Version | How to fix |
|---|---|---|
| debian/linux | 5.10.223-1 5.10.226-1 6.1.123-1 6.1.128-1 6.12.12-1 6.12.16-1 | |
| 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 |
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Reference Links
- https://git.kernel.org/stable/c/1696d6d7d4a1b373e96428d0fe1166bd7c3c795e
- https://git.kernel.org/stable/c/32e8f2d95528d45828c613417cb2827d866cbdce
- https://git.kernel.org/stable/c/81b4249ef37297fb17ba102a524039a05c6c5d35
- https://git.kernel.org/stable/c/8e44dc3f96e903815dab1d74fff8faafdc6feb61
- https://git.kernel.org/stable/c/93df0a2a0b3cde2d7ab3a52ed46ea1d6d4aaba5f
- https://git.kernel.org/stable/c/bacdaa04251382d7efd4f09f9a0686bfcc297e2e
- https://git.kernel.org/stable/c/bc6ef64dbe71136f327d63b2b9071b828af2c2a8
- https://git.kernel.org/stable/c/e0e1958f4c365e380b17ccb35617345b31ef7bf3
- https://launchpad.net/bugs/cve/CVE-2023-52600
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-52600
- https://nvd.nist.gov/vuln/detail/CVE-2023-52600
- https://security-tracker.debian.org/tracker/CVE-2023-52600
- https://ubuntu.com/security/CVE-2023-52600
- https://git.kernel.org/linus/e0e1958f4c365e380b17ccb35617345b31ef7bf3
Frequently Asked Questions
What is the severity of CVE-2023-52600?
CVE-2023-52600 has a severity rating that indicates a potential risk of user-after-free vulnerabilities in the Linux kernel.
How do I fix CVE-2023-52600?
To mitigate CVE-2023-52600, update your Linux kernel to versions 5.10.223-1, 6.1.123-1, or any version that includes the relevant patches.
Which versions of the Linux kernel are affected by CVE-2023-52600?
CVE-2023-52600 affects various versions of the Linux kernel between 4.19.307 and 6.7.4, excluding certain fixed versions.
What type of vulnerability is CVE-2023-52600?
CVE-2023-52600 is a user-after-free vulnerability that can potentially lead to unauthorized access or system crashes.
What components are involved in CVE-2023-52600?
CVE-2023-52600 specifically involves the jfs (Journaled File System) component of the Linux kernel.
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