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Vulnerability · Published Aug 16, 2023 · Assigned by redhat

CVE-2023-4387Kernel: vmxnet3: use-after-free in vmxnet3_rq_alloc_rx_buf()

High 7.1

In plain English

A high-severity use-after-free 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 15% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.1)7.1High
Exploit odds (30 days)0.2%top 84.6% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known

Official description

A use-after-free flaw was found in vmxnet3_rq_alloc_rx_buf in drivers/net/vmxnet3/vmxnet3_drv.c in VMware's vmxnet3 ethernet NIC driver in the Linux Kernel. This issue could allow a local attacker to crash the system due to a double-free while cleaning up vmxnet3_rq_cleanup_all, which could also lead to a kernel information leak problem.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
Debian:12linux5.17.11-1DEBIAN-CVE-2023-4387
Debian:13linux5.17.11-1DEBIAN-CVE-2023-4387
Debian:14linux5.17.11-1DEBIAN-CVE-2023-4387
Ubuntu:22.04:LTSlinux5.15.0-47.51UBUNTU-CVE-2023-4387
Ubuntu:22.04:LTSlinux-aws5.15.0-1019.23UBUNTU-CVE-2023-4387
Ubuntu:22.04:LTSlinux-aws-5.19no fix listedUBUNTU-CVE-2023-4387
Ubuntu:22.04:LTSlinux-azure5.15.0-1019.24UBUNTU-CVE-2023-4387
Ubuntu:22.04:LTSlinux-azure-5.19no fix listedUBUNTU-CVE-2023-4387
Ubuntu:22.04:LTSlinux-azure-fde-5.19no fix listedUBUNTU-CVE-2023-4387
Ubuntu:22.04:LTSlinux-gcp5.15.0-1017.23UBUNTU-CVE-2023-4387
Ubuntu:22.04:LTSlinux-gcp-5.19no fix listedUBUNTU-CVE-2023-4387
Ubuntu:22.04:LTSlinux-gke5.15.0-1015.18UBUNTU-CVE-2023-4387
Ubuntu:22.04:LTSlinux-gkeop5.15.0-1002.4UBUNTU-CVE-2023-4387
Ubuntu:22.04:LTSlinux-ibm5.15.0-1013.15UBUNTU-CVE-2023-4387
Ubuntu:22.04:LTSlinux-intel-iot-realtimeno fix listedUBUNTU-CVE-2023-4387
Ubuntu:22.04:LTSlinux-intel-iotg5.15.0-1015.20UBUNTU-CVE-2023-4387
Ubuntu:22.04:LTSlinux-kvm5.15.0-1017.21UBUNTU-CVE-2023-4387
Ubuntu:22.04:LTSlinux-lowlatency5.15.0-47.53UBUNTU-CVE-2023-4387
Ubuntu:22.04:LTSlinux-nvidia5.15.0-1007.7UBUNTU-CVE-2023-4387
Ubuntu:22.04:LTSlinux-oem-5.175.17.0-1013.14UBUNTU-CVE-2023-4387
Ubuntu:22.04:LTSlinux-oracle5.15.0-1017.22UBUNTU-CVE-2023-4387
Ubuntu:22.04:LTSlinux-raspi5.15.0-1014.16UBUNTU-CVE-2023-4387
Ubuntu:24.04:LTSlinux-raspi-realtimeno fix listedUBUNTU-CVE-2023-4387
Ubuntu:22.04:LTSlinux-realtimeno fix listedUBUNTU-CVE-2023-4387
Ubuntu:22.04:LTSlinux-riscvno fix listedUBUNTU-CVE-2023-4387
Ubuntu:22.04:LTSlinux-riscv-5.19no fix listedUBUNTU-CVE-2023-4387
Ubuntu:22.04:LTSlinux-starfive-5.19no fix listedUBUNTU-CVE-2023-4387

Affected products (as reported)

VendorProductVersions
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
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 9 see references

Weakness: CWE-416 · Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H

References