{"cve":"CVE-2023-54066","nvd":{"published":"2025-12-24T13:16:08.437","modified":"2026-06-17T06:46:44.410","status":"Deferred","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nmedia: dvb-usb-v2: gl861: Fix null-ptr-deref in gl861_i2c_master_xfer\n\nIn gl861_i2c_master_xfer, msg is controlled by user. When msg[i].buf\nis null and msg[i].len is zero, former checks on msg[i].buf would be\npassed. Malicious data finally reach gl861_i2c_master_xfer. If accessing\nmsg[i].buf[0] without sanity check, null ptr deref would happen.\nWe add check on msg[i].len to prevent crash.\n\nSimilar commit:\ncommit 0ed554fd769a\n(\"media: dvb-usb: az6027: fix null-ptr-deref in az6027_i2c_xfer()\")","cvss_v4":null,"cvss_v3":null,"cwes":[],"references":["https://git.kernel.org/stable/c/2a33fc57133d6f39d62285df6706aeb1714967f1","https://git.kernel.org/stable/c/578b67614ae0e4fba3945b66a4c8f9ae77115bcb","https://git.kernel.org/stable/c/72af676551efe820e309a6c7681c2c4372f37376","https://git.kernel.org/stable/c/b97719a66970601cd3151a3e2020f4454a1c4ff6","https://git.kernel.org/stable/c/dfcd3c010209927b9f45b860f046635dc32e32e1"],"products":[],"source":"nvd","synced_at":"2026-10-19T22:18:08.089039631+00:00"},"epss":{"cve":"CVE-2023-54066","score":0.00199,"percentile":0.09794,"date":"2026-11-01"},"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."]}