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CVE-2021-33630

NULL-ptr-deref in network sched

Published: Jan 18, 2024Updated: Apr 2, 2025 Sources: CVE List NVD BDUCWE-476
5.5MEDIUM
NVD MITRE
EPSS Score
0.3%
Top 73.3%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available
Self-Check
OpenVAS

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.

No summary for this CVE yet.

CVSS Vector Breakdown

AV:LAC:LPR:LUI:NS:UC:NI:NA:H
Exploitability
AV:LAttack Vector
Local
AC:LAttack Complexity
Low
PR:LPrivileges Required
Low
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:NConfidentiality
None
I:NIntegrity
None
A:HAvailability
High
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Weaknesses

CWE-476

Affected Products

Сообщество свободного программного обеспечения
oss-projectaka fsf
Debian GNU/LinuxOn-premOS
Operating Systems / linux-distro
LinuxOn-premOS
Operating Systems / linux-distro
openEuler
oss-project·CN
kernelOn-prem
Operating Systems / linux-distro
Red Hat Inc.
commercial·USaka red hat
Red Hat Enterprise LinuxOn-premOS
Operating Systems / linux-distro
openatom
oss-project·CNaka openeuler, openharmony
openeulerOn-premOS
Operating Systems / linux-distro

Exploitability

Official Patch Available
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Attack Graph

Products CVE Techniques Tactics

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MITRE ATT&CK

2 techniques
Impact
Initial Access
View detailed technique mapping

References

https://www.openeuler.org/zh/security/security-bulletins/detail/?id=openEuler-SA-2024-1030
openeuler.org
https://www.openeuler.org/zh/security/security-bulletins/detail/?id=openEuler-SA-2024-1031
openeuler.org
https://gitee.com/src-openeuler/kernel/pulls/1389
gitee.com
and 18 more references View all →

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