CVE-2018-16658: Infoleak
First published: Fri Sep 07 2018(Updated: )
An information leak was discovered in the Linux kernel in cdrom_ioctl_drive_status() function in drivers/cdrom/cdrom.c that could be used by local attackers to read kernel memory at certain location. An upstream patch: <a href="https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=8f3fafc9c2f0ece10832c25f7ffcb07c97a32ad4">https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=8f3fafc9c2f0ece10832c25f7ffcb07c97a32ad4</a>
Credit: cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Linux kernel | <4.18.6 | |
| Ubuntu Linux | =12.04 | |
| Ubuntu Linux | =14.04 | |
| Ubuntu Linux | =16.04 | |
| Ubuntu Linux | =18.04 | |
| Debian | =8.0 | |
| Debian | =9.0 | |
| debian/linux | 5.10.223-1 5.10.234-1 6.1.123-1 6.1.128-1 6.12.12-1 6.12.17-1 |
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Reference Links
- http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=8f3fafc9c2f0ece10832c25f7ffcb07c97a32ad4
- http://www.securityfocus.com/bid/105334
- https://access.redhat.com/errata/RHSA-2019:2029
- https://access.redhat.com/errata/RHSA-2019:2043
- https://access.redhat.com/errata/RHSA-2019:4154
- https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.18.6
- https://github.com/torvalds/linux/commit/8f3fafc9c2f0ece10832c25f7ffcb07c97a32ad4
- https://lists.debian.org/debian-lts-announce/2018/10/msg00003.html
- https://usn.ubuntu.com/3797-1/
- https://usn.ubuntu.com/3797-2/
- https://usn.ubuntu.com/3820-1/
- https://usn.ubuntu.com/3820-2/
- https://usn.ubuntu.com/3820-3/
- https://usn.ubuntu.com/3822-1/
- https://usn.ubuntu.com/3822-2/
- https://www.debian.org/security/2018/dsa-4308
- https://launchpad.net/bugs/cve/CVE-2018-16658
- https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=8f3fafc9c2f0ece10832c25f7ffcb07c97a32ad4
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=1628143
- https://bugzilla.redhat.com/show_bug.cgi?id=1627731
- https://git.kernel.org/linus/8f3fafc9c2f0ece10832c25f7ffcb07c97a32ad4
- https://security-tracker.debian.org/tracker/CVE-2018-16658
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-16658
- https://nvd.nist.gov/vuln/detail/CVE-2018-16658
- https://ubuntu.com/security/CVE-2018-16658
Frequently Asked Questions
What is CVE-2018-16658?
CVE-2018-16658 is a vulnerability in the Linux kernel that allows local attackers to read kernel memory due to an information leak in the cdrom_ioctl_drive_status function.
What is the severity of CVE-2018-16658?
The severity of CVE-2018-16658 is low.
How can local attackers exploit CVE-2018-16658?
Local attackers can exploit CVE-2018-16658 by using an information leak in cdrom_ioctl_drive_status to read kernel memory.
Which versions of the Linux kernel are affected by CVE-2018-16658?
Versions before 4.18.6 of the Linux kernel are affected by CVE-2018-16658.
Is there a fix for CVE-2018-16658?
Yes, updating the Linux kernel to version 4.18.6 or later can fix CVE-2018-16658.
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