CVE-2022-40768
First published: Sun Sep 18 2022(Updated: )
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.
Credit: cve@mitre.org cve@mitre.org cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| debian/linux | 5.10.223-1 5.10.226-1 6.1.123-1 6.1.119-1 6.12.11-1 6.12.12-1 | |
| Linux Kernel | <=5.19.9 | |
| Fedoraproject Fedora | =35 | |
| Fedoraproject Fedora | =36 | |
| Fedoraproject Fedora | =37 | |
| Debian GNU/Linux | =10.0 |
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Reference Links
- http://www.openwall.com/lists/oss-security/2022/09/19/1
- https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/log/drivers/scsi/stex.c
- https://lists.debian.org/debian-lts-announce/2022/12/msg00034.html
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/GGHENNMLCWIQV2LLA56BJNFIUZ7WB4IY/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/S2KTU5LFZNQS7YNGE56MT46VHMXL3DD2/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/VNN3VFQPECS6D4PS6ZWD7AFXTOSJDSSR/
- https://lore.kernel.org/all/20220908145154.2284098-1-gregkh@linuxfoundation.org/
- https://www.openwall.com/lists/oss-security/2022/09/09/1
- https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=6022f210461fef67e6e676fd8544ca02d1bcfa7a
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/GGHENNMLCWIQV2LLA56BJNFIUZ7WB4IY/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/S2KTU5LFZNQS7YNGE56MT46VHMXL3DD2/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/VNN3VFQPECS6D4PS6ZWD7AFXTOSJDSSR/
- https://lore.kernel.org/all/20220908145154.2284098-1-gregkh%40linuxfoundation.org/
- https://launchpad.net/bugs/cve/CVE-2022-40768
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-40768
- https://nvd.nist.gov/vuln/detail/CVE-2022-40768
- https://security-tracker.debian.org/tracker/CVE-2022-40768
- https://ubuntu.com/security/CVE-2022-40768
- https://git.kernel.org/linus/6022f210461fef67e6e676fd8544ca02d1bcfa7a
Frequently Asked Questions
What is the severity of CVE-2022-40768?
CVE-2022-40768 is classified as a medium severity vulnerability affecting the Linux kernel.
How do I fix CVE-2022-40768?
To fix CVE-2022-40768, update your Linux kernel to version 5.19.10 or later.
Which versions of the Linux kernel are affected by CVE-2022-40768?
CVE-2022-40768 affects the Linux kernel versions up to and including 5.19.9.
Can CVE-2022-40768 allow unauthorized access to sensitive data?
Yes, CVE-2022-40768 can potentially allow local users to obtain sensitive information from kernel memory.
Is CVE-2022-40768 specific to any particular Linux distribution?
CVE-2022-40768 affects multiple distributions including Fedora 35, 36, 37 and Debian Linux 10.0.
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