Bug 2219359 (CVE-2023-6176) - CVE-2023-6176 kernel: local dos vulnerability in scatterwalk_copychunks
Summary: CVE-2023-6176 kernel: local dos vulnerability in scatterwalk_copychunks
Keywords:
Status: NEW
Alias: CVE-2023-6176
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
low
low
Target Milestone: ---
Assignee: Nobody
QA Contact:
URL:
Whiteboard:
Depends On: 2219362 2219363 2250069
Blocks: 2219356
TreeView+ depends on / blocked
 
Reported: 2023-07-03 10:04 UTC by TEJ RATHI
Modified: 2024-05-22 09:50 UTC (History)
47 users (show)

Fixed In Version:
Doc Type: If docs needed, set a value
Doc Text:
A null pointer dereference flaw was found in the Linux kernel API for the cryptographic algorithm scatterwalk functionality. This issue occurs when a user constructs a malicious packet with specific socket configuration, which could allow a local user to crash the system or escalate their privileges on the system.
Clone Of:
Environment:
Last Closed:
Embargoed:

Attachments (Terms of Use)


Links
System ID Private Priority Status Summary Last Updated
Red Hat Product Errata RHBA-2024:2634 0 None None None 2024-05-01 01:21:52 UTC
Red Hat Product Errata RHBA-2024:2650 0 None None None 2024-05-02 00:14:40 UTC
Red Hat Product Errata RHBA-2024:2686 0 None None None 2024-05-02 22:49:48 UTC
Red Hat Product Errata RHSA-2024:2394 0 None None None 2024-04-30 10:10:21 UTC
Red Hat Product Errata RHSA-2024:2950 0 None None None 2024-05-22 09:13:01 UTC
Red Hat Product Errata RHSA-2024:3138 0 None None None 2024-05-22 09:50:41 UTC

Description TEJ RATHI 2023-07-03 10:04:40 UTC 
When the attacker carefully constructs the network packet to reach the above path, it will execute scatterwalk_copychunks(walk->src.virt.addr, &walk->in, bsize, 0); At this time, the calculated address is 0xdffffc0000000001, which is an invalid kernel address. Accessing this address will panic the kernel, bringing the system crash.
Comment 8 Alex 2023-11-16 13:42:17 UTC 
Created kernel tracking bugs for this issue:

Affects: fedora-all [bug 2250069]
Comment 11 Justin M. Forbes 2023-12-19 22:32:22 UTC 
This was fixed for Fedora with the 6.5.4 stable kernel updates.
Comment 18 errata-xmlrpc 2024-04-30 10:10:18 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9

Via RHSA-2024:2394 https://access.redhat.com/errata/RHSA-2024:2394
Comment 19 errata-xmlrpc 2024-05-22 09:12:55 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8

Via RHSA-2024:2950 https://access.redhat.com/errata/RHSA-2024:2950
Comment 20 errata-xmlrpc 2024-05-22 09:50:37 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8

Via RHSA-2024:3138 https://access.redhat.com/errata/RHSA-2024:3138
Note You need to log in before you can comment on or make changes to this bug.