Bug 2155946 (CVE-2022-47942, ZDI-22-1688, ZDI-CAN-17771) - CVE-2022-47942 kernel: improper validation user-supplied data could lead in heap buffer overflow which can result in RCE
Summary: CVE-2022-47942 kernel: improper validation user-supplied data could lead in h...
Keywords:
Status: CLOSED NOTABUG
Alias: CVE-2022-47942, ZDI-22-1688, ZDI-CAN-17771
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
high
high
Target Milestone: ---
Assignee: Red Hat Product Security
QA Contact:
URL:
Whiteboard:
Depends On: 2155952
Blocks: 2155936
TreeView+ depends on / blocked
 
Reported: 2022-12-23 01:55 UTC by Michael Kaplan
Modified: 2023-04-28 16:38 UTC (History)
38 users (show)

Fixed In Version: kernel 6.0-rc1
Doc Type: If docs needed, set a value
Doc Text:
Clone Of:
Environment:
Last Closed: 2022-12-24 15:39:47 UTC
Embargoed:

Attachments (Terms of Use)

Description Michael Kaplan 2022-12-23 01:55:21 UTC 
This vulnerability allows remote attackers to execute arbitrary code on affected installations of Linux Kernel. Authentication is required to exploit this vulnerability.

The specific flaw exists within the handling of file attributes. The issue results from the lack of proper validation of the length of user-supplied data prior to copying it to a heap-based buffer. An attacker can leverage this vulnerability to execute code in the context of the kernel.

References: 

https://www.zerodayinitiative.com/advisories/ZDI-22-1688/
Comment 1 Michael Kaplan 2022-12-23 02:02:26 UTC 
Created kernel tracking bugs for this issue:

Affects: fedora-all [bug 2155952]
Comment 4 Sandipan Roy 2022-12-23 07:15:50 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 15:39:42 UTC 
This bug is now closed. Further updates for individual products will be reflected on the CVE page(s):

https://access.redhat.com/security/cve/cve-2022-47942
Note You need to log in before you can comment on or make changes to this bug.