CVE-2023-52804
What it is
In the Linux kernel, the following vulnerability has been resolved: fs/jfs: Add validity check for db_maxag and db_agpref Both db_maxag and db_agpref are used as the index of the db_agfree array, but there is currently no validity check for db_maxag and db_agpref, which can lead to errors. The following is related bug reported by Syzbot: UBSAN: array-index-out-of-bounds in fs/jfs/jfs_dmap.c:639:20 index 7936 is out of range for type 'atomic_t[128]' Add checking that the values of db_maxag and db_agpref are valid indexes for the db_agfree array.
At a glance
- Exploitability
- Can be exploited locally on the machine with a low-privilege account. High risk of data exposure, data tampering, service disruption.
- Exploit odds
- 0.3% chance of exploitation in the next 30 days (EPSS).
- Fix
- A patch, advisory or fixed version is referenced. Upgrade or apply it.
Timeline
- PublishedDisclosed publicly on CVE.org and NVD
- Last updatedMost recent change to the record
Why it ranks here
- Exploited in the wild: no, CISA does not list it.
- Exploit odds: 0.3% in the next 30 days (EPSS).
- Severity: 7.8 HIGH (CVSS).
- Fix: a patch or advisory is linked.
Details
- Published
- Last modified
- Exploit probability
- 0.3% · EPSS, next 30 days
- Weakness
- CWE-129
- Record status
- Modified
Affected
- Linux Kernel < 4.14.331
- Linux Kernel < 4.19.300
- Linux Kernel < 5.4.262
- Linux Kernel < 5.10.202
- Linux Kernel < 5.15.140
- Linux Kernel < 6.1.64
- Linux Kernel < 6.5.13
- Linux Kernel < 6.6.3
Attack profile CVSS 3.1 · 7.8
- Attack vector
- Local
- Complexity
- Low
- Privileges needed
- Low
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- High
- Availability
- High
Raw vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Is it in your code?
Hand this to your coding agent. It searches your project for the affected products and checks versions. Nothing leaves your machine.
Read https://cve-list.com/agent/cve/CVE-2023-52804.md and follow it. Check whether this project is affected by CVE-2023-52804. Read only. Don't change anything and don't upload my code. Tell me yes, no or not sure, with the file as proof.
Fix and advisories
- https://git.kernel.org/stable/c/1f74d336990f37703a8eee77153463d65b67f70e
- https://git.kernel.org/stable/c/2323de34a3ae61a9f9b544c18583f71cea86721f
- https://git.kernel.org/stable/c/32bd8f1cbcf8b663e29dd1f908ba3a129541a11b
- https://git.kernel.org/stable/c/5013f8269887642cca784adc8db9b5f0b771533f
- https://git.kernel.org/stable/c/64933ab7b04881c6c18b21ff206c12278341c72e
- https://git.kernel.org/stable/c/a0649e2dd4a3595b5595a29d0064d047c2fae2fb
- https://git.kernel.org/stable/c/c6c8863fb3f57700ab583d875adda04caaf2278a
- https://git.kernel.org/stable/c/ce15b0f1a431168f07b1cc6c9f71206a2db5c809
- https://git.kernel.org/stable/c/dca403bb035a565bb98ecc1dda5d30f676feda40
- https://git.kernel.org/stable/c/1f74d336990f37703a8eee77153463d65b67f70e
References
- https://git.kernel.org/stable/c/1f74d336990f37703a8eee77153463d65b67f70e
- https://git.kernel.org/stable/c/2323de34a3ae61a9f9b544c18583f71cea86721f
- https://git.kernel.org/stable/c/32bd8f1cbcf8b663e29dd1f908ba3a129541a11b
- https://git.kernel.org/stable/c/5013f8269887642cca784adc8db9b5f0b771533f
- https://git.kernel.org/stable/c/64933ab7b04881c6c18b21ff206c12278341c72e
- https://git.kernel.org/stable/c/a0649e2dd4a3595b5595a29d0064d047c2fae2fb
- https://git.kernel.org/stable/c/c6c8863fb3f57700ab583d875adda04caaf2278a
- https://git.kernel.org/stable/c/ce15b0f1a431168f07b1cc6c9f71206a2db5c809
- https://git.kernel.org/stable/c/dca403bb035a565bb98ecc1dda5d30f676feda40
- https://git.kernel.org/stable/c/1f74d336990f37703a8eee77153463d65b67f70e
- https://git.kernel.org/stable/c/2323de34a3ae61a9f9b544c18583f71cea86721f
- https://git.kernel.org/stable/c/32bd8f1cbcf8b663e29dd1f908ba3a129541a11b
- https://git.kernel.org/stable/c/5013f8269887642cca784adc8db9b5f0b771533f
- https://git.kernel.org/stable/c/64933ab7b04881c6c18b21ff206c12278341c72e
- https://git.kernel.org/stable/c/a0649e2dd4a3595b5595a29d0064d047c2fae2fb
- https://git.kernel.org/stable/c/c6c8863fb3f57700ab583d875adda04caaf2278a
- https://git.kernel.org/stable/c/ce15b0f1a431168f07b1cc6c9f71206a2db5c809
- https://git.kernel.org/stable/c/dca403bb035a565bb98ecc1dda5d30f676feda40