CVE-2023-4387
7.1
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H
Summary
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 Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Red Hat | Red Hat Enterprise Linux 8 | 0:4.18.0-425.3.1.el8 < * | unaffected |
| Red Hat | Red Hat Enterprise Linux 9 | 0:5.14.0-162.6.1.el9_1 < * | unaffected |
| Red Hat | Red Hat Enterprise Linux 9 | 0:5.14.0-162.6.1.el9_1 < * | unaffected |
Weaknesses
- CWE-416: Use After Free
Workarounds
Mitigation for this issue is to skip loading the affected module "vmxnet3" onto the system until the fix is available, this can be done by a blacklist mechanism which will ensure the driver is not loaded at the boot time.
How do I blacklist a kernel module to prevent it from loading automatically?
https://access.redhat.com/solutions/41278
ADP Enrichment
CVE Program Container
Additional References
- https://access.redhat.com/security/cve/CVE-2023-4387
- https://bugzilla.redhat.com/show_bug.cgi?id=2219270
- https://github.com/torvalds/linux/commit/9e7fef9521e73ca8afd7da9e58c14654b02dfad8
References
- https://access.redhat.com/errata/RHSA-2022:7683
- https://access.redhat.com/errata/RHSA-2022:8267
- https://access.redhat.com/security/cve/CVE-2023-4387
- https://bugzilla.redhat.com/show_bug.cgi?id=2219270
- https://github.com/torvalds/linux/commit/9e7fef9521e73ca8afd7da9e58c14654b02dfad8
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