NULL pointer dereference in Linux Kernel
CVE-2023-6535
A flaw was found in the Linux kernel's NVMe driver. This issue may allow an unauthenticated malicious actor to send a set of crafted TCP packages when using NVMe over TCP, leading the NVMe driver to a NULL pointer dereference in the NVMe driver, causing kernel panic and a denial of service.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.
EPSS exploit prediction
EPSS: 0.015 (74.1th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 74th percentile — 74.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.015 · newest: 0.015 · change: 0.000
Affected products
- Linux Kernel
- Red Hat Enterprise Linux 6
- Red Hat Enterprise Linux 7
- Red Hat Enterprise Linux 8 — versions 0:4.18.0-513.18.1.rt7.320.el8_9, 0:4.18.0-513.18.1.el8_9
- Red Hat Enterprise Linux 8.6 Extended Update Support — versions 0:4.18.0-372.91.1.el8_6
- Red Hat Enterprise Linux 8.8 Extended Update Support — versions 0:4.18.0-477.58.1.el8_8
- Red Hat Enterprise Linux 9 — versions 0:5.14.0-362.24.1.el9_3
- Red Hat Enterprise Linux 9.2 Extended Update Support — versions 0:5.14.0-284.52.1.el9_2, 0:5.14.0-284.52.1.rt14.337.el9_2
- Red Hat Virtualization 4 For Enterprise Linux 8 — versions 0:4.18.0-372.91.1.el8_6
- Red Hat Rhol-5.8-Rhel-9 — versions v5.8.6-22, v5.8.6-11, v6.8.1-407
Weakness classification (CWE)
Public proof-of-concept exploits
References
- access.redhat.com/errata/RHSA-2024:0723 (vendor-advisory, Third Party Advisory)
- access.redhat.com/errata/RHSA-2024:0724 (vendor-advisory, Third Party Advisory)
- access.redhat.com/errata/RHSA-2024:0725 (vendor-advisory, Third Party Advisory)
- access.redhat.com/errata/RHSA-2024:0881 (vendor-advisory)
- access.redhat.com/errata/RHSA-2024:0897 (vendor-advisory)
- access.redhat.com/errata/RHSA-2024:1248 (vendor-advisory)
- access.redhat.com/errata/RHSA-2024:2094 (vendor-advisory)
- access.redhat.com/errata/RHSA-2024:3810 (vendor-advisory)
- access.redhat.com/security/cve/CVE-2023-6535 (Third Party Advisory, vdb-entry)
- bugzilla.redhat.com/show_bug.cgi (issue-tracking, Issue Tracking)
Frequently asked questions
- What is CVE-2023-6535?
- CVE-2023-6535 is a medium-severity vulnerability in Linux Kernel, classified under NULL Pointer Dereference. CVSS score: 6.5/10. Published 2024-02-07.
- How severe is CVE-2023-6535?
- Medium severity. CVSS v3 base score is 6.5 out of 10.
- Is CVE-2023-6535 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.