QwikSec

Security Database

CVE

CWE

Training

CVE-2021-33630

Published: Jan 18, 2024

Modified: May 7, 2025

PUBLISHED

CVSS v3.1

5.5

MEDIUM

Description

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.

Vendor	Product	Versions
openEuler	kernel	affected `4.19.90 - < 4.19.90-2401.3`

Weaknesses (CWE)

CVSS v3.1 Details

CVSS v3.1 Vector

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

Attack Vector

Local

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

High

References

https://www.openeuler.org/zh/security/security-bulletins/detail/?id=openEuler-SA-2024-1030

https://www.openeuler.org/zh/security/security-bulletins/detail/?id=openEuler-SA-2024-1031

https://gitee.com/src-openeuler/kernel/pulls/1389

https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=3e8b9bfa110896f95d602d8c98d5f9d67e41d78c

http://www.openwall.com/lists/oss-security/2024/01/30/3

http://www.openwall.com/lists/oss-security/2024/01/30/4

http://www.openwall.com/lists/oss-security/2024/01/30/5

http://www.openwall.com/lists/oss-security/2024/01/30/9

http://www.openwall.com/lists/oss-security/2024/01/30/10

http://www.openwall.com/lists/oss-security/2024/01/31/3

http://www.openwall.com/lists/oss-security/2024/01/31/2

http://www.openwall.com/lists/oss-security/2024/02/02/6

http://www.openwall.com/lists/oss-security/2024/02/02/9

http://www.openwall.com/lists/oss-security/2024/02/03/1

https://lists.debian.org/debian-lts-announce/2024/06/msg00020.html

Security Training

Train your team to recognize and prevent security threats with our comprehensive security awareness program.

Vulnerability Scanning

Discover vulnerabilities in your applications and infrastructure before attackers do.