NULL pointer dereference in Openatom Openeuler
CVE-2021-33630
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.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.
EPSS exploit prediction
EPSS: 0.003 (25.0th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 25th percentile — 25.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.003 · newest: 0.003 · change: 0.000
Affected products
- Openatom Openeuler
- Openeuler Kernel — versions 4.19.90
Weakness classification (CWE)
Public proof-of-concept exploits
References
- www.openeuler.org/zh/security/security-bulletins/detail/ (Vendor Advisory)
- www.openeuler.org/zh/security/security-bulletins/detail/ (Vendor Advisory)
- gitee.com/src-openeuler/kernel/pulls/1389 (Release Notes)
- git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/
- www.openwall.com/lists/oss-security/2024/01/30/3
- www.openwall.com/lists/oss-security/2024/01/30/4
- www.openwall.com/lists/oss-security/2024/01/30/5
- www.openwall.com/lists/oss-security/2024/01/30/9
- www.openwall.com/lists/oss-security/2024/01/30/10
- www.openwall.com/lists/oss-security/2024/01/31/3
Frequently asked questions
- What is CVE-2021-33630?
- CVE-2021-33630 is a medium-severity vulnerability in Openatom Openeuler, classified under NULL Pointer Dereference. CVSS score: 5.5/10. Published 2024-01-18.
- How severe is CVE-2021-33630?
- Medium severity. CVSS v3 base score is 5.5 out of 10.
- Is CVE-2021-33630 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.