CVE-2023-4387

Kernel: vmxnet3: use-after-free in vmxnet3_rq_alloc_rx_buf()

State: Published
Severity: 7.1 High
Published: Aug 16, 2023
Updated: Nov 6, 2025
Reserved: Aug 16, 2023

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.

Scores

CVSS	Score	Vector	Source
3.1	7.1 High	CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H	redhat

Weaknesses

CWE-416 Use After Free

Affected Products

Product	Versions
Red Hat Enterprise Linux 8Red Hat	0:4.18.0-425.3.1.el8 and laterNot affected
Red Hat Enterprise Linux 9Red Hat	0:5.14.0-162.6.1.el9_1 and laterNot affected
Red Hat Enterprise Linux 9Red Hat	0:5.14.0-162.6.1.el9_1 and laterNot affected
Red Hat Enterprise Linux 6Red Hat
Red Hat Enterprise Linux 7Red Hat
Red Hat Enterprise Linux 7Red Hat
Red Hat Enterprise Linux 8Red Hat
Red Hat Enterprise Linux 9Red Hat

References

RHSA-2022:7683vendor-advisory
RHSA-2022:8267vendor-advisory
https://access.redhat.com/security/cve/CVE-2023-4387vdb-entry
RHBZ#2219270issue-tracking
https://github.com/torvalds/linux/commit/9e7fef9521e73ca8afd7da9e58c14654b02dfad8

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