# CVE-2023-4385: linux: A NULL pointer dereference flaw was found in dbFree in fs/jfs/jfs_dmap.c in the journaling file system (JFS) in the L...

CVE-2023-4385 is fixed in linux on 1 platform, first by DEBIAN-CVE-2023-4385, released August 16, 2023. It is not reported as exploited. Patch Radar priority: Routine.

- Web page: https://patchblox.com/security/cve/CVE-2023-4385
- Priority: Routine
- CVSS: 5.5 (medium)
- EPSS: 0.0023
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Aug 16, 2023

## Description

A NULL pointer dereference flaw was found in dbFree in fs/jfs/jfs_dmap.c in the journaling file system (JFS) in the Linux Kernel. This issue may allow a local attacker to crash the system due to a missing sanity check.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | linux Debian 12.15 (bookworm) | 5.18.5-1 | [DEBIAN-CVE-2023-4385](https://patchblox.com/security/data/fix/linux/debian-cve-2023-4385.md) | Aug 16, 2023 |
| Linux | linux Debian 13.5 (trixie) | 5.18.5-1 | [DEBIAN-CVE-2023-4385](https://patchblox.com/security/data/fix/linux/debian-cve-2023-4385.md) | Aug 16, 2023 |
| Linux | linux Debian 14 | 5.18.5-1 | [DEBIAN-CVE-2023-4385](https://patchblox.com/security/data/fix/linux/debian-cve-2023-4385.md) | Aug 16, 2023 |

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