CVE-2021-33630
openEuler kernel NULL Pointer Dereference in network modules
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.
INFO
Published Date :
Jan. 18, 2024, 3:15 p.m.
Last Modified :
April 2, 2025, 6:33 p.m.
Source :
[email protected]
Remotely Exploitable :
No
Impact Score :
3.6
Exploitability Score :
1.8
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2021-33630.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2021-33630 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2021-33630 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
CPE Deprecation Remap by [email protected]
Apr. 02, 2025
Action Type Old Value New Value Changed CPE Configuration OR *cpe:2.3:o:huawei:openeuler:*:*:*:*:-:*:*:* versions from (including) 4.19.90 from (excluding) 4.19.90-2401.3 OR *cpe:2.3:o:openatom:openeuler:*:*:*:*:-:*:*:* versions from (including) 4.19.90 from (excluding) 4.19.90-2401.3 -
CVE Modified by [email protected]
Feb. 13, 2025
Action Type Old Value New Value Changed 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. 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. -
CVE Modified by af854a3a-2127-422b-91ae-364da2661108
Nov. 21, 2024
Action Type Old Value New Value Added Reference http://www.openwall.com/lists/oss-security/2024/01/30/10 Added Reference http://www.openwall.com/lists/oss-security/2024/01/30/3 Added Reference http://www.openwall.com/lists/oss-security/2024/01/30/4 Added Reference http://www.openwall.com/lists/oss-security/2024/01/30/5 Added Reference http://www.openwall.com/lists/oss-security/2024/01/30/9 Added Reference http://www.openwall.com/lists/oss-security/2024/01/31/2 Added Reference http://www.openwall.com/lists/oss-security/2024/01/31/3 Added Reference http://www.openwall.com/lists/oss-security/2024/02/02/6 Added Reference http://www.openwall.com/lists/oss-security/2024/02/02/9 Added Reference http://www.openwall.com/lists/oss-security/2024/02/03/1 Added Reference https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=3e8b9bfa110896f95d602d8c98d5f9d67e41d78c Added Reference https://gitee.com/src-openeuler/kernel/pulls/1389 Added Reference https://lists.debian.org/debian-lts-announce/2024/06/msg00020.html Added Reference https://www.openeuler.org/zh/security/security-bulletins/detail/?id=openEuler-SA-2024-1030 Added Reference https://www.openeuler.org/zh/security/security-bulletins/detail/?id=openEuler-SA-2024-1031 -
CVE Modified by [email protected]
Jun. 27, 2024
Action Type Old Value New Value Added Reference openEuler https://lists.debian.org/debian-lts-announce/2024/06/msg00020.html [No types assigned] -
CVE Modified by [email protected]
May. 14, 2024
Action Type Old Value New Value -
CVE Modified by [email protected]
Feb. 03, 2024
Action Type Old Value New Value Added Reference openEuler http://www.openwall.com/lists/oss-security/2024/02/03/1 [No types assigned] -
CVE Modified by [email protected]
Feb. 03, 2024
Action Type Old Value New Value Added Reference openEuler http://www.openwall.com/lists/oss-security/2024/02/02/9 [No types assigned] -
CVE Modified by [email protected]
Feb. 02, 2024
Action Type Old Value New Value Added Reference openEuler http://www.openwall.com/lists/oss-security/2024/02/02/6 [No types assigned] -
CVE Modified by [email protected]
Jan. 31, 2024
Action Type Old Value New Value Added Reference openEuler http://www.openwall.com/lists/oss-security/2024/01/31/3 [No types assigned] Added Reference openEuler http://www.openwall.com/lists/oss-security/2024/01/31/2 [No types assigned] -
CVE Modified by [email protected]
Jan. 31, 2024
Action Type Old Value New Value Added Reference openEuler http://www.openwall.com/lists/oss-security/2024/01/30/9 [No types assigned] Added Reference openEuler http://www.openwall.com/lists/oss-security/2024/01/30/10 [No types assigned] -
CVE Modified by [email protected]
Jan. 30, 2024
Action Type Old Value New Value Added Reference openEuler http://www.openwall.com/lists/oss-security/2024/01/30/5 [No types assigned] -
CVE Modified by [email protected]
Jan. 30, 2024
Action Type Old Value New Value Added Reference openEuler http://www.openwall.com/lists/oss-security/2024/01/30/3 [No types assigned] Added Reference openEuler http://www.openwall.com/lists/oss-security/2024/01/30/4 [No types assigned] -
CVE Modified by [email protected]
Jan. 26, 2024
Action Type Old Value New Value Added Reference openEuler https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=3e8b9bfa110896f95d602d8c98d5f9d67e41d78c [No types assigned] -
Initial Analysis by [email protected]
Jan. 25, 2024
Action Type Old Value New Value Added CVSS V3.1 NIST AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H Changed Reference Type https://gitee.com/src-openeuler/kernel/pulls/1389 No Types Assigned https://gitee.com/src-openeuler/kernel/pulls/1389 Release Notes Changed Reference Type https://www.openeuler.org/zh/security/security-bulletins/detail/?id=openEuler-SA-2024-1030 No Types Assigned https://www.openeuler.org/zh/security/security-bulletins/detail/?id=openEuler-SA-2024-1030 Vendor Advisory Changed Reference Type https://www.openeuler.org/zh/security/security-bulletins/detail/?id=openEuler-SA-2024-1031 No Types Assigned https://www.openeuler.org/zh/security/security-bulletins/detail/?id=openEuler-SA-2024-1031 Vendor Advisory Added CWE NIST CWE-476 Added CPE Configuration OR *cpe:2.3:o:huawei:openeuler:*:*:*:*:-:*:*:* versions from (including) 4.19.90 up to (excluding) 4.19.90-2401.3 -
CVE Received by [email protected]
Jan. 18, 2024
Action Type Old Value New Value Added 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. Added Reference openEuler https://www.openeuler.org/zh/security/security-bulletins/detail/?id=openEuler-SA-2024-1030 [No types assigned] Added Reference openEuler https://www.openeuler.org/zh/security/security-bulletins/detail/?id=openEuler-SA-2024-1031 [No types assigned] Added Reference openEuler https://gitee.com/src-openeuler/kernel/pulls/1389 [No types assigned] Added CWE openEuler CWE-476 Added CVSS V3.1 openEuler AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2021-33630 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2021-33630
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
0.05 }} 0.02%
score
0.13616
percentile