CVE-2023-4459 — NULL Pointer Dereference in Kernel

CWE-476 — NULL Pointer Dereference10 documents9 sources
Severity
5.5MEDIUMNVD
OSV6.5
EPSS
0.0%
top 99.32%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
2
Linux KernelRedhat Enterprise Linux
Timeline
PublishedAug 21
Latest updateSep 19

Description

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.

CVSS vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:HExploitability: 1.8 | Impact: 3.6

Affected Packages3 packages

▶NVDlinux/linux_kernel< 5.18
▶Debianlinux/linux_kernel< 5.10.120-1+3
▶Ubuntulinux/linux_kernel< 4.4.0-245.279

Also affects: Enterprise Linux 8.0, 9.0

Patches

Patch: bugzilla.redhat.com ↗Patch: github.com ↗Patch: bugzilla.redhat.com ↗

🔴Vulnerability Details

4
OSV
linux, linux-aws, linux-kvm, linux-lts-xenial vulnerabilities↗2023-09-19
▶
CVEList
Kernel: vmxnet3: null pointer dereference in vmxnet3_rq_cleanup()↗2023-08-21
▶
OSV
CVE-2023-4459: A NULL pointer dereference flaw was found in vmxnet3_rq_cleanup in drivers/net/vmxnet3/vmxnet3_drv↗2023-08-21
▶
GHSA
GHSA-p788-v6c7-5vqg: A NULL pointer dereference flaw was found in vmxnet3_rq_cleanup in drivers/net/vmxnet3/vmxnet3_drv↗2023-08-21
▶

📋Vendor Advisories

4
Ubuntu
Linux kernel vulnerabilities↗2023-09-19
▶
Microsoft
Kernel: vmxnet3: null pointer dereference in vmxnet3_rq_cleanup()↗2023-08-08
▶
Debian
CVE-2023-4459: linux - A NULL pointer dereference flaw was found in vmxnet3_rq_cleanup in drivers/net/v...↗2023
▶
Red Hat
kernel: vmxnet3: NULL pointer dereference in vmxnet3_rq_cleanup()↗2022-05-14
▶

💬Community

1
Bugzilla
CVE-2023-4459 kernel: vmxnet3: NULL pointer dereference in vmxnet3_rq_cleanup()↗2023-07-03
▶
CVE-2023-4459 — NULL Pointer Dereference in Kernel | cvebase