CVE-2021-33630 MEDIUM

CVE-2021-33630: NULL-ptr-deref in network sched

Vendor Openeuler
Product kernel
Weakness CWE-476
Published January 18, 2024
Last update May 7, 2025
View on NVD All CVEs

CVSS base score

5.5/10
Attack vector Local
Attack complexity Low
Privileges required Low
User interaction None
Confidentiality None
Integrity None

CVSS vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

What the vulnerability does

01Description

NULL Pointer Dereference vulnerability in openEuler kernel on Linux (network modules) allows Pointer Manipulation. This vulnerability is associated with program files net/sched/sch_cbs.C. This issue affects openEuler kernel: from 4.19.90 before 4.19.90-2401.3.

Key dates

02Disclosure timeline

January 18, 2024 CVE published
May 7, 2025 Record updated