CVE-2018-10940

kernel: incorrect memory bounds check in drivers/cdrom/cdrom.c

Severity Score

5.5

*CVSS v3

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

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.

La función cdrom_ioctl_media_changed en drivers/cdrom/cdrom.c en el kernel de Linux en versiones anteriores a la 4.16.6 permite que atacantes locales empleen una comprobación de límites incorrecta en el ioctl CDROM_MEDIA_CHANGED del controlador CDROM para leer la memoria del kernel.

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

*Credits: N/A

CVSS Scores

Attack Vector

Local

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

High

Attack Vector

Local

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

Low

Integrity

None

Availability

Low

Attack Vector

Local

Attack Complexity

Low

Authentication

None

Confidentiality

None

Integrity

None

Availability

Complete

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2018-05-09 CVE Reserved
2018-05-09 CVE Published
2023-03-08 EPSS Updated
2024-08-05 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer

CAPEC

References (18)

URL	Tag	Source
http://www.securityfocus.com/bid/104154	Third Party Advisory
https://lists.debian.org/debian-lts-announce/2018/06/msg00000.html	Mailing List
https://lists.debian.org/debian-lts-announce/2018/07/msg00015.html	Mailing List
https://lists.debian.org/debian-lts-announce/2018/07/msg00016.html	Mailing List
https://lists.debian.org/debian-lts-announce/2018/07/msg00020.html	Mailing List
https://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.16.6	Release Notes

URL	Date	SRC

URL	Date	SRC
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=9de4ee40547fd315d4a0ed1dd15a2fa3559ad707	2018-10-31
https://github.com/torvalds/linux/commit/9de4ee40547fd315d4a0ed1dd15a2fa3559ad707	2018-10-31

URL	Date	SRC
https://access.redhat.com/errata/RHSA-2018:2948	2018-10-31
https://access.redhat.com/errata/RHSA-2018:3083	2018-10-31
https://access.redhat.com/errata/RHSA-2018:3096	2018-10-31
https://usn.ubuntu.com/3676-1	2018-10-31
https://usn.ubuntu.com/3676-2	2018-10-31
https://usn.ubuntu.com/3695-1	2018-10-31
https://usn.ubuntu.com/3695-2	2018-10-31
https://usn.ubuntu.com/3754-1	2018-10-31
https://access.redhat.com/security/cve/CVE-2018-10940	2018-10-30
https://bugzilla.redhat.com/show_bug.cgi?id=1577408	2018-10-30

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Linux Search vendor "Linux"		Linux Kernel Search vendor "Linux" for product "Linux Kernel"				< 4.16.6 Search vendor "Linux" for product "Linux Kernel" and version " < 4.16.6"		-		Affected
Debian Search vendor "Debian"		Debian Linux Search vendor "Debian" for product "Debian Linux"				7.0 Search vendor "Debian" for product "Debian Linux" and version "7.0"		-		Affected