{"cve":"CVE-2023-4385","nvd":{"published":"2023-08-16T17:15:11.327","modified":"2026-06-17T06:37:43.343","status":"Modified","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.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","score":5.5},"cwes":["CWE-476"],"references":["https://access.redhat.com/security/cve/CVE-2023-4385","https://bugzilla.redhat.com/show_bug.cgi?id=2219272","https://github.com/torvalds/linux/commit/0d4837fdb796f99369cf7691d33de1b856bcaf1f","https://access.redhat.com/security/cve/CVE-2023-4385","https://bugzilla.redhat.com/show_bug.cgi?id=2219272"],"products":["linux:linux_kernel"],"source":"nvd","synced_at":"2026-10-19T21:39:14.809778102+00:00"},"epss":{"cve":"CVE-2023-4385","score":0.00233,"percentile":0.14295,"date":"2026-10-31"},"kev":null,"osv":[],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}