CVE-2023-4387

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

HIGH

7.1

CVSS Score

Published: August 16, 2023 at 06:49 PM UTC

Updated: June 17, 2026 at 06:37 AM UTC

2 products affected across 2 vendorsLinux KernelEnterprise Linux

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Severity

HIGH7.1

Exploit prediction

EPSS 0.2%

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

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Linux Kernel · Linux

95%

3.16.60 ≤ v < 3.174.10 ≤ v < 4.14.2814.15 ≤ v < 4.19.2454.20 ≤ v < 5.4.1964.4 ≤ v < 4.9.3165.11 ≤ v < 5.15.425.16 ≤ v < 5.17.105.5 ≤ v < 5.10.118

Affected range stops below 3.17, so it looks safe — our inference, not a vendor statement

Affected range stops below 4.14.281, so it looks safe — our inference, not a vendor statement

Affected range stops below 4.19.245, so it looks safe — our inference, not a vendor statement

Affected range stops below 4.9.316, so it looks safe — our inference, not a vendor statement

Affected range stops below 5.10.118, so it looks safe — our inference, not a vendor statement

Affected range stops below 5.15.42, so it looks safe — our inference, not a vendor statement

Affected range stops below 5.17.10, so it looks safe — our inference, not a vendor statement

Affected range stops below 5.4.196, so it looks safe — our inference, not a vendor statement

Enterprise Linux · Red Hatrpm

95%

6.0 7.0 8.0 9.0

Vendor states this is fixed in 0:4.18.0-425.3.1.el8 (unaffected)

Vendor states this is fixed in 0:5.14.0-162.6.1.el9_1 (unaffected)

Vendor states this is fixed in 6 (unknown)

Vendor states this is fixed in 7 (unknown)

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

References (5)

Vendor Advisoryx_refsource_REDHAT

Source: [email protected]

https://access.redhat.com/errata/RHSA-2022:7683

Vendor Advisoryx_refsource_REDHAT

Source: [email protected]

https://access.redhat.com/errata/RHSA-2022:8267

VDB Entryx_refsource_REDHATThird Party Advisory

Source: [email protected]

https://access.redhat.com/security/cve/CVE-2023-4387

Issue Trackingx_refsource_REDHATThird Party Advisory

Source: [email protected]

https://bugzilla.redhat.com/show_bug.cgi?id=2219270

Patch

Source: [email protected]

https://github.com/torvalds/linux/commit/9e7fef9521e73ca8afd7da9e58c14654b02dfad8

CVSS

7.1HIGHredhat

Attack Vector: LOCAL
Complexity: LOW
Privileges: LOW
User Interaction: NONE
Scope: UNCHANGED
Confidentiality: HIGH
Integrity: NONE
Availability: HIGH

Vector?

Quick Info

StatusMODIFIED

CWE

CWE-416

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