Bug 2155945 (CVE-2022-47941, ZDI-22-1687, ZDI-CAN-17815) - CVE-2022-47941 kernel: handling of SMB2_NEGOTIATE command doesn't properly release memory which could result in DoS
Summary: CVE-2022-47941 kernel: handling of SMB2_NEGOTIATE command doesn't properly re...
Alias: CVE-2022-47941, ZDI-22-1687, ZDI-CAN-17815
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
Target Milestone: ---
Assignee: Red Hat Product Security
QA Contact:
Depends On: 2155950
Blocks: Embargoed2155936
TreeView+ depends on / blocked
Reported: 2022-12-23 01:46 UTC by Michael Kaplan
Modified: 2023-04-28 19:24 UTC (History)
38 users (show)

Fixed In Version: kernel 6.0-rc1
Doc Type: If docs needed, set a value
Doc Text:
Clone Of:
Last Closed: 2022-12-24 15:10:03 UTC

Attachments (Terms of Use)

Description Michael Kaplan 2022-12-23 01:46:44 UTC
This vulnerability allows remote attackers to create a denial-of-service condition on affected installations of Linux Kernel. Authentication is not required to exploit this vulnerability.

The specific flaw exists within the handling of SMB2_NEGOTIATE commands. The issue results from the lack of memory release after its effective lifetime. An attacker can leverage this vulnerability to create a denial-of-service condition on the system.



Comment 1 Michael Kaplan 2022-12-23 02:02:22 UTC
Created kernel tracking bugs for this issue:

Affects: fedora-all [bug 2155950]

Comment 4 Sandipan Roy 2022-12-23 10:47:05 UTC
There was no shipped kernel version that was seen affected by this problem. These files are not built in our source code.

Comment 5 Product Security DevOps Team 2022-12-24 15:09:58 UTC
This bug is now closed. Further updates for individual products will be reflected on the CVE page(s):


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