What’s Vulnerable › Vulnerabilities

CVE-2018-10940

• Severity: medium (CVSS 5.5 v3.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.5% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2018-05-09 · updated 2026-06-17
• Weakness: CWE-119

Description

The cdrom_ioctl_media_changed function in drivers/cdrom/cdrom.c in the Linux kernel before 4.16.6 allows local attackers to use a incorrect bounds check in the CDROM driver CDROM_MEDIA_CHANGED ioctl to read out kernel memory.

Affected products

• Debian Linux: 7.0
• Linux kernel: before 4.16.6 — fixed in 4.16.6

How to fix

Upgrade to a fixed version: Linux kernel 4.16.6. Check the vendor advisory for mitigations.

References

• http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=9de4ee40547fd315d4a0ed1dd15a2fa3559ad707
• http://www.securityfocus.com/bid/104154
• https://access.redhat.com/errata/RHSA-2018:2948
• https://access.redhat.com/errata/RHSA-2018:3083
• https://access.redhat.com/errata/RHSA-2018:3096
• https://github.com/torvalds/linux/commit/9de4ee40547fd315d4a0ed1dd15a2fa3559ad707
• https://lists.debian.org/debian-lts-announce/2018/06/msg00000.html
• https://lists.debian.org/debian-lts-announce/2018/07/msg00015.html
• https://lists.debian.org/debian-lts-announce/2018/07/msg00016.html
• https://lists.debian.org/debian-lts-announce/2018/07/msg00020.html
• https://usn.ubuntu.com/3676-1/
• https://usn.ubuntu.com/3676-2/

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