Medium severity · published Jan 18, 2024
CVE-2021-33630
NULL-ptr-deref in network sched
5.5
CVSS
0.3%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Attack vector
Local
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
None
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.3% · higher than 27% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
KE
kernel · openEuler
4.19.90 before 4.19.90-2401.3 · source: vendor
OP
Openeuler · Openatom
4.19.90 before 4.19.90-2401.3 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2021-33630
CVE.org
https://www.cve.org/CVERecord?id=CVE-2021-33630
www.openwall.com
http://www.openwall.com/lists/oss-security/2024/01/30/10
www.openwall.com
http://www.openwall.com/lists/oss-security/2024/01/30/3
www.openwall.com
http://www.openwall.com/lists/oss-security/2024/01/30/4
www.openwall.com
http://www.openwall.com/lists/oss-security/2024/01/30/5
www.openwall.com
http://www.openwall.com/lists/oss-security/2024/01/30/9
www.openwall.com
http://www.openwall.com/lists/oss-security/2024/01/31/2
More from kernel
7.8
CVE-2021-33631
Kernel crash in EXT4 filesystem
6.0
CVE-2024-24898
Information Leakage in kernel
6.0
CVE-2024-24891
Information Leakage in kernel