CVE-2022-0487: Use After Free
First published: Mon Jan 24 2022(Updated: )
A use-after-free vulnerability was found in rtsx_usb_ms_drv_remove in drivers/memstick/host/rtsx_usb_ms.c in memstick in the Linux kernel. In this flaw, a local attacker with a user privilege may impact system Confidentiality. References: <a href="https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=42933c8aa14be1caa9eda41f65cde8a3a95d3e39">https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=42933c8aa14be1caa9eda41f65cde8a3a95d3e39</a> <a href="https://lore.kernel.org/all/20220114075934.302464-1-gregkh@linuxfoundation.org/">https://lore.kernel.org/all/20220114075934.302464-1-gregkh@linuxfoundation.org/</a> <a href="https://bugzilla.suse.com/show_bug.cgi?id=1194516">https://bugzilla.suse.com/show_bug.cgi?id=1194516</a>
Credit: secalert@redhat.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| redhat/kernel | <5.17 | 5.17 |
| Linux Kernel | <=5.13.19 | |
| Red Hat Enterprise Linux | =8.0 | |
| Debian Linux | =9.0 | |
| Debian Linux | =11.0 | |
| debian/linux | 5.10.223-1 5.10.234-1 6.1.129-1 6.1.135-1 6.12.22-1 6.12.25-1 |
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Reference Links
- https://bugzilla.redhat.com/show_bug.cgi?id=2044561
- https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=42933c8aa14be1caa9eda41f65cde8a3a95d3e39
- https://lists.debian.org/debian-lts-announce/2022/03/msg00011.html
- https://lists.debian.org/debian-lts-announce/2022/03/msg00012.html
- https://www.debian.org/security/2022/dsa-5095
- https://www.debian.org/security/2022/dsa-5096
- https://launchpad.net/bugs/cve/CVE-2022-0487
- https://lore.kernel.org/all/20220114075934.302464-1-gregkh@linuxfoundation.org/
- https://bugzilla.suse.com/show_bug.cgi?id=1194516
- https://bugzilla.redhat.com/show_comment_activity.cgi?id=2044561&comment_id=15874861
- https://git.kernel.org/linus/bd2db32e7c3e35bd4d9b8bbff689434a50893546
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=2044561#c9
- https://bugzilla.redhat.com/show_comment_activity
- https://access.redhat.com/security/cve/cve-2022-0487
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-0487
- https://nvd.nist.gov/vuln/detail/CVE-2022-0487
- https://security-tracker.debian.org/tracker/CVE-2022-0487
- https://ubuntu.com/security/CVE-2022-0487
Frequently Asked Questions
What is the severity of CVE-2022-0487?
CVE-2022-0487 is classified as having a medium severity level due to its potential impact on system confidentiality.
How do I fix CVE-2022-0487?
To address CVE-2022-0487, users should upgrade to the latest kernel versions specified in the vulnerability advisory.
Which Linux kernel versions are affected by CVE-2022-0487?
CVE-2022-0487 affects multiple versions of the Linux kernel, specifically those prior to 5.17 and several versions within the 5.x and 6.x series.
Can a local attacker exploit CVE-2022-0487?
Yes, a local attacker with user privileges can exploit CVE-2022-0487 to potentially impact system confidentiality.
Is CVE-2022-0487 fixed in newer kernel updates?
Yes, CVE-2022-0487 has been addressed in subsequent kernel updates, which include necessary patches to mitigate the vulnerability.
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