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Vulnerability · Published Aug 21, 2023 · Assigned by redhat

CVE-2023-4459Kernel: vmxnet3: null pointer dereference in vmxnet3_rq_cleanup()

Medium 5.5

In plain English

A medium-severity null pointer dereference in Red Hat Enterprise Linux 6 from Red Hat. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 16% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.1)5.5Medium
Exploit odds (30 days)0.2%top 83.6% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known

Official 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.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
Debian:12linux5.17.11-1DEBIAN-CVE-2023-4459
Debian:13linux5.17.11-1DEBIAN-CVE-2023-4459
Debian:14linux5.17.11-1DEBIAN-CVE-2023-4459
Ubuntu:22.04:LTSlinux5.15.0-47.51UBUNTU-CVE-2023-4459
Ubuntu:22.04:LTSlinux-aws5.15.0-1019.23UBUNTU-CVE-2023-4459
Ubuntu:22.04:LTSlinux-aws-5.19no fix listedUBUNTU-CVE-2023-4459
Ubuntu:22.04:LTSlinux-azure5.15.0-1019.24UBUNTU-CVE-2023-4459
Ubuntu:22.04:LTSlinux-azure-5.19no fix listedUBUNTU-CVE-2023-4459
Ubuntu:22.04:LTSlinux-azure-fde-5.19no fix listedUBUNTU-CVE-2023-4459
Ubuntu:22.04:LTSlinux-gcp5.15.0-1017.23UBUNTU-CVE-2023-4459
Ubuntu:22.04:LTSlinux-gcp-5.19no fix listedUBUNTU-CVE-2023-4459
Ubuntu:22.04:LTSlinux-gke5.15.0-1015.18UBUNTU-CVE-2023-4459
Ubuntu:22.04:LTSlinux-gkeop5.15.0-1002.4UBUNTU-CVE-2023-4459
Ubuntu:22.04:LTSlinux-ibm5.15.0-1013.15UBUNTU-CVE-2023-4459
Ubuntu:22.04:LTSlinux-intel-iot-realtimeno fix listedUBUNTU-CVE-2023-4459
Ubuntu:22.04:LTSlinux-intel-iotg5.15.0-1015.20UBUNTU-CVE-2023-4459
Ubuntu:22.04:LTSlinux-kvm5.15.0-1017.21UBUNTU-CVE-2023-4459
Ubuntu:22.04:LTSlinux-lowlatency5.15.0-47.53UBUNTU-CVE-2023-4459
Ubuntu:22.04:LTSlinux-nvidia5.15.0-1007.7UBUNTU-CVE-2023-4459
Ubuntu:22.04:LTSlinux-oem-5.175.17.0-1013.14UBUNTU-CVE-2023-4459
Ubuntu:22.04:LTSlinux-oracle5.15.0-1017.22UBUNTU-CVE-2023-4459
Ubuntu:22.04:LTSlinux-raspi5.15.0-1014.16UBUNTU-CVE-2023-4459
Ubuntu:24.04:LTSlinux-raspi-realtimeno fix listedUBUNTU-CVE-2023-4459
Ubuntu:22.04:LTSlinux-realtimeno fix listedUBUNTU-CVE-2023-4459
Ubuntu:22.04:LTSlinux-riscvno fix listedUBUNTU-CVE-2023-4459
Ubuntu:22.04:LTSlinux-riscv-5.19no fix listedUBUNTU-CVE-2023-4459
Ubuntu:22.04:LTSlinux-starfive-5.19no fix listedUBUNTU-CVE-2023-4459

Affected products (as reported)

VendorProductVersions
Red Hat Red Hat Enterprise Linux 8.2 Advanced Update Support see references
Red Hat Red Hat Enterprise Linux 8.2 Telecommunications Update Service see references
Red Hat Red Hat Enterprise Linux 8.2 Telecommunications Update Service see references
Red Hat Red Hat Enterprise Linux 8.2 Update Services for SAP Solutions see references
Red Hat Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support see references
Red Hat Red Hat Enterprise Linux 8.4 Telecommunications Update Service see references
Red Hat Red Hat Enterprise Linux 8.4 Telecommunications Update Service see references
Red Hat Red Hat Enterprise Linux 8.4 Update Services for SAP Solutions see references
Red Hat Red Hat Enterprise Linux 8.6 Extended Update Support see references
Red Hat Red Hat Enterprise Linux 9.0 Extended Update Support see references
Red Hat Red Hat Enterprise Linux 9.0 Extended Update Support see references
Red Hat Red Hat Virtualization 4 for Red Hat Enterprise Linux 8 see references
Red Hat Red Hat Enterprise Linux 6 see references
Red Hat Red Hat Enterprise Linux 7 see references
Red Hat Red Hat Enterprise Linux 7 see references
Red Hat Red Hat Enterprise Linux 8 see references
Red Hat Red Hat Enterprise Linux 8 see references
Red Hat Red Hat Enterprise Linux 9 see references
Red Hat Red Hat Enterprise Linux 9 see references

Weakness: CWE-476 · Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

References