Bug 2219268 (CVE-2023-4459) - CVE-2023-4459 kernel: vmxnet3: NULL pointer dereference in vmxnet3_rq_cleanup()
Summary: CVE-2023-4459 kernel: vmxnet3: NULL pointer dereference in vmxnet3_rq_cleanup()
Keywords:
Status: NEW
Alias: CVE-2023-4459
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Nobody
QA Contact:
URL:
Whiteboard:
Depends On: 2219289 2219291 2233199 2233200
Blocks: 2219643
TreeView+ depends on / blocked
 
Reported: 2023-07-03 07:02 UTC by Dhananjay Arunesh
Modified: 2024-05-02 16:01 UTC (History)
49 users (show)

Fixed In Version: Kernel 5.18
Doc Type: If docs needed, set a value
Doc Text:
A NULL pointer dereference flaw was found in vmxnet3_rq_cleanup in drivers/net/vmxnet3/vmxnet3_drv.c in the networking sub-component in vmxnet3 in the Linux Kernel. This issue may allow a local attacker with normal user privilege to cause a denial of service due to a missing sanity check during cleanup.
Clone Of:
Environment:
Last Closed:
Embargoed:

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Links
System ID Private Priority Status Summary Last Updated
Red Hat Product Errata RHBA-2024:1796 0 None None None 2024-04-11 21:12:07 UTC
Red Hat Product Errata RHBA-2024:2065 0 None None None 2024-04-25 14:55:15 UTC
Red Hat Product Errata RHBA-2024:2680 0 None None None 2024-05-02 16:01:35 UTC
Red Hat Product Errata RHSA-2024:0412 0 None None None 2024-01-24 16:44:05 UTC
Red Hat Product Errata RHSA-2024:1250 0 None None None 2024-03-12 00:43:37 UTC
Red Hat Product Errata RHSA-2024:1306 0 None None None 2024-03-13 09:08:36 UTC
Red Hat Product Errata RHSA-2024:1367 0 None None None 2024-03-19 00:22:30 UTC
Red Hat Product Errata RHSA-2024:1382 0 None None None 2024-03-19 15:07:47 UTC
Red Hat Product Errata RHSA-2024:2006 0 None None None 2024-04-23 16:40:02 UTC
Red Hat Product Errata RHSA-2024:2008 0 None None None 2024-04-23 16:28:14 UTC

Description Dhananjay Arunesh 2023-07-03 07:02:51 UTC 
A NULL pointer dereference flaw was found in vmxnet3_rq_cleanup in drivers/net/vmxnet3/vmxnet3_drv.c in networking sub-component in vmxnet3 in the Linux Kernel. In this flaw a local attacker with normal user privilege may lead to a denial of service problem due to a missing sanity check while cleanup.

In vmxnet3_rq_create(), when dma_alloc_coherent() fails, vmxnet3_rq_destroy() is called. It sets rq->rx_ring[i].base to NULL. Then vmxnet3_rq_create() returns an error to its callers mxnet3_rq_create_all() -> vmxnet3_change_mtu(). Then vmxnet3_change_mtu() calls vmxnet3_force_close() -> dev_close() in error handling code. And the driver calls vmxnet3_close() -> vmxnet3_quiesce_dev() -> vmxnet3_rq_cleanup_all() -> vmxnet3_rq_cleanup(). In vmxnet3_rq_cleanup(), rq->rx_ring[ring_idx].base is accessed, but this variable is NULL, causing a NULL pointer dereference.

References:
https://github.com/torvalds/linux/commit/edf410cb74dc612fd47ef5be319c5a0bcd6e6ccd
Comment 13 errata-xmlrpc 2024-01-24 16:44:01 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8.6 Extended Update Support

Via RHSA-2024:0412 https://access.redhat.com/errata/RHSA-2024:0412
Comment 15 errata-xmlrpc 2024-03-12 00:43:33 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9.0 Extended Update Support

Via RHSA-2024:1250 https://access.redhat.com/errata/RHSA-2024:1250
Comment 16 errata-xmlrpc 2024-03-13 09:08:31 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9.0 Extended Update Support

Via RHSA-2024:1306 https://access.redhat.com/errata/RHSA-2024:1306
Comment 17 errata-xmlrpc 2024-03-19 00:22:27 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support
  Red Hat Enterprise Linux 8.4 Update Services for SAP Solutions
  Red Hat Enterprise Linux 8.4 Telecommunications Update Service

Via RHSA-2024:1367 https://access.redhat.com/errata/RHSA-2024:1367
Comment 18 errata-xmlrpc 2024-03-19 15:07:44 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support
  Red Hat Enterprise Linux 8.4 Telecommunications Update Service
  Red Hat Enterprise Linux 8.4 Update Services for SAP Solutions

Via RHSA-2024:1382 https://access.redhat.com/errata/RHSA-2024:1382
Comment 19 errata-xmlrpc 2024-04-23 16:28:10 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8.2 Telecommunications Update Service

Via RHSA-2024:2008 https://access.redhat.com/errata/RHSA-2024:2008
Comment 20 errata-xmlrpc 2024-04-23 16:39:58 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8.2 Advanced Update Support
  Red Hat Enterprise Linux 8.2 Telecommunications Update Service
  Red Hat Enterprise Linux 8.2 Update Services for SAP Solutions

Via RHSA-2024:2006 https://access.redhat.com/errata/RHSA-2024:2006
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