Vulnerability Details : CVE-2022-40768

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.

Published 2022-09-18 05:15:09

Updated 2023-02-23 15:41:39

Source MITRE

View at NVD, CVE.org

Exploit prediction scoring system (EPSS) score for CVE-2022-40768

Probability of exploitation activity in the next 30 days: 0.04%

Percentile, the proportion of vulnerabilities that are scored at or less: ~ 6 % EPSS Score History EPSS FAQ

CVSS scores for CVE-2022-40768

Base Score	Base Severity	CVSS Vector	Exploitability Score	Impact Score	Source
5.5	MEDIUM	CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N	1.8	3.6	nvd@nist.gov
Attack Vector: Local Attack Complexity: Low Privileges Required: Low User Interaction: None Scope: Unchanged Confidentiality: High Integrity: None Availability: None

CWE ids for CVE-2022-40768

CWE-668 Exposure of Resource to Wrong Sphere

The product exposes a resource to the wrong control sphere, providing unintended actors with inappropriate access to the resource.

Assigned by: nvd@nist.gov (Primary)

References for CVE-2022-40768

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

oss-security - Linux kernel: information disclosure in stex_queuecommand_lck
Mailing List;Patch;Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/VNN3VFQPECS6D4PS6ZWD7AFXTOSJDSSR/

[SECURITY] Fedora 35 Update: kernel-5.19.15-101.fc35 - package-announce - Fedora Mailing-Lists
Mailing List;Third Party Advisory

CVEs referencing this url
http://www.openwall.com/lists/oss-security/2022/09/19/1

oss-security - Re: Linux kernel: information disclosure in stex_queuecommand_lck
Mailing List;Patch;Third Party Advisory
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/log/drivers/scsi/stex.c

kernel/git/torvalds/linux.git - Linux kernel source tree
Vendor Advisory
https://lore.kernel.org/all/20220908145154.2284098-1-gregkh@linuxfoundation.org/

[PATCH] scsi: stex: properly zero out the passthrough command structure - Greg Kroah-Hartman
Mailing List;Patch;Vendor Advisory
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/S2KTU5LFZNQS7YNGE56MT46VHMXL3DD2/

[SECURITY] Fedora 37 Update: kernel-5.19.15-301.fc37 - package-announce - Fedora Mailing-Lists
Mailing List;Third Party Advisory

CVEs referencing this url
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/GGHENNMLCWIQV2LLA56BJNFIUZ7WB4IY/

[SECURITY] Fedora 36 Update: kernel-5.19.15-201.fc36 - package-announce - Fedora Mailing-Lists
Mailing List;Third Party Advisory

CVEs referencing this url
https://lists.debian.org/debian-lts-announce/2022/12/msg00034.html

[SECURITY] [DLA 3245-1] linux security update
Mailing List;Third Party Advisory

CVEs referencing this url

Products affected by CVE-2022-40768

Debian » Debian Linux » Version: 10.0
cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*
Matching versions
Linux » Linux Kernel
Versions up to, including, (<=) 5.19.9
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
Matching versions
Fedoraproject » Fedora » Version: 35
cpe:2.3:o:fedoraproject:fedora:35:*:*:*:*:*:*:*
Matching versions
Fedoraproject » Fedora » Version: 36
cpe:2.3:o:fedoraproject:fedora:36:*:*:*:*:*:*:*
Matching versions
Fedoraproject » Fedora » Version: 37
cpe:2.3:o:fedoraproject:fedora:37:*:*:*:*:*:*:*
Matching versions