CVE-2023-4387

HIGH7.1

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

Published Aug 16, 2023

Modified 2 months ago

Details

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.

References

ADVISORYhttps://access.redhat.com/errata/RHSA-2022:7683 ADVISORYhttps://access.redhat.com/errata/RHSA-2022:8267 WEBhttps://access.redhat.com/security/cve/CVE-2023-4387 WEBhttps://bugzilla.redhat.com/show_bug.cgi?id=2219270 WEBhttps://github.com/torvalds/linux/commit/9e7fef9521e73ca8afd7da9e58c14654b02dfad8 ADVISORYhttps://www.cve.org/CVERecord?id=CVE-2023-4387

CVSS Analysis

CVSS v3.1

7.1

Exploitability

Attack Vector

LocalAV:L

Attack Complexity

LowAC:L

Privileges Required

LowPR:L

User Interaction

NoneUI:N

Scope

UnchangedS:U

Impact

Confidentiality

HighC:H

Integrity

NoneI:N

Availability

HighA:H

7.1/CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H

Weakness Type (CWE)

Memory Safety

CWE-416

Use After Free

Ecosystems

Timeline

PublishedAug 16, 2023

ModifiedNov 6, 2025