NULL pointer dereference in Linux Kernel
CVE-2023-4459
A NULL pointer dereference flaw was found in vmxnet3_rq_cleanup in drivers/net/vmxnet3/vmxnet3_drv.c in the networking sub-component in vmxnet3 in the Linux Kernel. This issue may allow a local attacker with normal user privilege to cause a denial of service due to a missing sanity check during cleanup.
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: 0.002 (14.7th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 15th percentile — 14.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.002 · newest: 0.002 · change: 0.000
Affected products
- Linux Kernel
- Red Hat Enterprise Linux 6
- Red Hat Enterprise Linux 7
- Red Hat Enterprise Linux 8
- Red Hat Enterprise Linux 8.2 Advanced Update Support — versions 0:4.18.0-193.133.1.el8_2
- Red Hat Enterprise Linux 8.2 Telecommunications Update Service — versions 0:4.18.0-193.133.1.rt13.184.el8_2, 0:4.18.0-193.133.1.el8_2
- Red Hat Enterprise Linux 8.2 Update Services For SAP Solutions — versions 0:4.18.0-193.133.1.el8_2
- Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support — versions 0:4.18.0-305.125.1.el8_4
- Red Hat Enterprise Linux 8.4 Telecommunications Update Service — versions 0:4.18.0-305.125.1.rt7.201.el8_4, 0:4.18.0-305.125.1.el8_4
- Red Hat Enterprise Linux 8.4 Update Services For SAP Solutions — versions 0:4.18.0-305.125.1.el8_4
Weakness classification (CWE)
Public proof-of-concept exploits
References
- access.redhat.com/errata/RHSA-2024:0412 (vendor-advisory)
- access.redhat.com/errata/RHSA-2024:1250 (vendor-advisory)
- access.redhat.com/errata/RHSA-2024:1306 (vendor-advisory)
- access.redhat.com/errata/RHSA-2024:1367 (vendor-advisory)
- access.redhat.com/errata/RHSA-2024:1382 (vendor-advisory)
- access.redhat.com/errata/RHSA-2024:2006 (vendor-advisory)
- access.redhat.com/errata/RHSA-2024:2008 (vendor-advisory)
- access.redhat.com/security/cve/CVE-2023-4459 (Third Party Advisory, vdb-entry)
- bugzilla.redhat.com/show_bug.cgi (issue-tracking, Patch, Issue Tracking)
- github.com/torvalds/linux/commit/edf410cb74dc612fd47ef5be319c5a0bcd6e6ccd (Patch)
Frequently asked questions
- What is CVE-2023-4459?
- CVE-2023-4459 is a medium-severity vulnerability in Linux Kernel, classified under NULL Pointer Dereference. CVSS score: 5.5/10. Published 2023-08-21.
- How severe is CVE-2023-4459?
- Medium severity. CVSS v3 base score is 5.5 out of 10.
- Is CVE-2023-4459 known to be exploited?
- 3 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.