Bug 2128462 (CVE-2022-40768) - CVE-2022-40768 kernel: leak of sensitive information due to uninitialized data in stex_queuecommand_lck() in drivers/scsi/stex.c
Summary: CVE-2022-40768 kernel: leak of sensitive information due to uninitialized dat...
Keywords:
Status: CLOSED WONTFIX
Alias: CVE-2022-40768
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Red Hat Product Security
QA Contact:
URL:
Whiteboard:
Depends On: 2128463
Blocks: 2128464
TreeView+ depends on / blocked
 
Reported: 2022-09-20 16:48 UTC by Guilherme de Almeida Suckevicz
Modified: 2022-11-29 06:29 UTC (History)
52 users (show)

Fixed In Version:
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Doc Text:
An information disclosure vulnerability is found in stex_queuecommand_lck() in drivers/scsi/stex.c in the Linux Kernel. This flaw allows a local attacker to disclose sensitive information such as kernel space address.
Clone Of:
Environment:
Last Closed: 2022-11-29 06:29:20 UTC
Embargoed:

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Description Guilherme de Almeida Suckevicz 2022-09-20 16:48:32 UTC 
drivers/scsi/stex.c in the Linux kernel through 5.19.9 allows local users to obtain sensitive information from kernel memory because stex_queuecommand_lck lacks a memset for the PASSTHRU_CMD case.

References:
https://www.openwall.com/lists/oss-security/2022/09/09/1
https://www.openwall.com/lists/oss-security/2022/09/19/1

Upstream patch:
https://lore.kernel.org/all/20220908145154.2284098-1-gregkh@linuxfoundation.org/
Comment 1 Guilherme de Almeida Suckevicz 2022-09-20 16:48:59 UTC 
Created kernel tracking bugs for this issue:

Affects: fedora-all [bug 2128463]
Comment 4 Product Security DevOps Team 2022-11-29 06:29:17 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-2022-40768
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