CVE-2018-11506

Name: CVE-2018-11506
Creator: NVD / NIST
Published: 2018-05-28T04:29:00.223+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.8/10EPSS 0.39%

Last modified Jun 17, 2026

CVE-2018-11506 is a high-severity vulnerability rated 7.8/10 on the CVSS scale. The sr_do_ioctl function in drivers/scsi/sr_ioctl.c in the Linux kernel through 4.16.12 allows local users to cause a denial of service (stack-based buffer overflow) or possibly have unspecified other impact because sense buffers have different sizes at the CDROM layer and the SCSI layer, as demonstrated by a CDROMREADMODE2 ioctl call.. EPSS estimates a 0.39% chance of exploitation in the next 30 days.

Description

The sr_do_ioctl function in drivers/scsi/sr_ioctl.c in the Linux kernel through 4.16.12 allows local users to cause a denial of service (stack-based buffer overflow) or possibly have unspecified other impact because sense buffers have different sizes at the CDROM layer and the SCSI layer, as demonstrated by a CDROMREADMODE2 ioctl call.

Metrics

CVSS 3.1

7.8/10

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

EPSS Probability

0.39%

30.3th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-787

Affected Software

Vendor	Product	Versions
Linux	Linux Kernel	>= 4.11, < 4.14.45
Linux	Linux Kernel	>= 4.15, < 4.16.13
Canonical	Ubuntu Linux	16.04
Canonical	Ubuntu Linux	18.04
Debian	Debian Linux	8.0

References

http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=f7068114d45ec55996b9040e98111afa56e010fePatch
https://access.redhat.com/errata/RHSA-2018:2948Third Party Advisory
https://github.com/torvalds/linux/commit/f7068114d45ec55996b9040e98111afa56e010fePatch
https://lists.debian.org/debian-lts-announce/2018/07/msg00015.htmlMailing List, Third Party Advisory
https://lists.debian.org/debian-lts-announce/2018/07/msg00016.htmlMailing List, Third Party Advisory
https://lists.debian.org/debian-lts-announce/2018/07/msg00020.htmlMailing List, Third Party Advisory
https://twitter.com/efrmv/status/1001574894273007616Third Party Advisory
https://usn.ubuntu.com/3752-1/Third Party Advisory
https://usn.ubuntu.com/3752-2/Third Party Advisory
https://usn.ubuntu.com/3752-3/Third Party Advisory
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=f7068114d45ec55996b9040e98111afa56e010fePatch
https://access.redhat.com/errata/RHSA-2018:2948Third Party Advisory
https://github.com/torvalds/linux/commit/f7068114d45ec55996b9040e98111afa56e010fePatch
https://lists.debian.org/debian-lts-announce/2018/07/msg00015.htmlMailing List, Third Party Advisory
https://lists.debian.org/debian-lts-announce/2018/07/msg00016.htmlMailing List, Third Party Advisory
https://lists.debian.org/debian-lts-announce/2018/07/msg00020.htmlMailing List, Third Party Advisory
https://twitter.com/efrmv/status/1001574894273007616Third Party Advisory
https://usn.ubuntu.com/3752-1/Third Party Advisory
https://usn.ubuntu.com/3752-2/Third Party Advisory
https://usn.ubuntu.com/3752-3/Third Party Advisory

Timeline

Published: May 28, 2018
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2018-11506?

How severe is CVE-2018-11506?

CVE-2018-11506 has a CVSS score of 7.8/10 (HIGH severity). The EPSS model estimates a 0.39% probability of exploitation in the next 30 days.

How do I fix CVE-2018-11506?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2018-11506?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST