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CVE-2018-18710

Publication date 29 October 2018

Last updated 24 July 2024

Ubuntu priority

Medium

Why this priority?

Cvss 3 Severity Score

5.5 · Medium

Score breakdown

An issue was discovered in the Linux kernel through 4.19. An information leak in cdrom_ioctl_select_disc in drivers/cdrom/cdrom.c could be used by local attackers to read kernel memory because a cast from unsigned long to int interferes with bounds checking. This is similar to CVE-2018-10940 and CVE-2018-16658.

From the Ubuntu Security Team

It was discovered that an integer overflow vulnerability existed in the CDROM driver of the Linux kernel. A local attacker could use this to expose sensitive information (kernel memory).

Status

Package Ubuntu Release Status
linux 18.10 cosmic
Fixed 4.18.0-13.14
18.04 LTS bionic
Fixed 4.15.0-43.46
16.04 LTS xenial
Fixed 4.4.0-141.167
14.04 LTS trusty
Fixed 3.13.0-164.214
linux-aws 18.10 cosmic
Fixed 4.18.0-1007.9
18.04 LTS bionic
Fixed 4.15.0-1031.33
16.04 LTS xenial
Fixed 4.4.0-1074.84
14.04 LTS trusty
Fixed 4.4.0-1037.40
linux-aws-hwe 18.10 cosmic Not in release
18.04 LTS bionic Not in release
16.04 LTS xenial
Fixed 4.15.0-1031.33~16.04.1
14.04 LTS trusty Not in release
linux-azure 18.10 cosmic
Fixed 4.18.0-1007.7
18.04 LTS bionic
Fixed 4.15.0-1036.38
16.04 LTS xenial
Fixed 4.15.0-1036.38~16.04.1
14.04 LTS trusty
Fixed 4.15.0-1036.38~14.04.2
linux-azure-edge 18.10 cosmic Not in release
18.04 LTS bionic
Fixed 4.15.0-1036.38
16.04 LTS xenial
Fixed 4.15.0-1036.38~16.04.1
14.04 LTS trusty Not in release
linux-euclid 18.10 cosmic Not in release
18.04 LTS bionic Not in release
16.04 LTS xenial Ignored
14.04 LTS trusty Not in release
linux-flo 18.10 cosmic Not in release
18.04 LTS bionic Not in release
16.04 LTS xenial Ignored
14.04 LTS trusty Not in release
linux-gcp 18.10 cosmic
Fixed 4.18.0-1005.6
18.04 LTS bionic
Fixed 4.15.0-1026.27
16.04 LTS xenial
Fixed 4.15.0-1026.27~16.04.1
14.04 LTS trusty Not in release
linux-gcp-edge 18.10 cosmic Not in release
18.04 LTS bionic
Fixed 4.18.0-1005.6~18.04.1
16.04 LTS xenial Not in release
14.04 LTS trusty Not in release
linux-gke 18.10 cosmic Not in release
18.04 LTS bionic Not in release
16.04 LTS xenial Ignored
14.04 LTS trusty Not in release
linux-goldfish 18.10 cosmic Not in release
18.04 LTS bionic Not in release
16.04 LTS xenial Ignored
14.04 LTS trusty Not in release
linux-grouper 18.10 cosmic Not in release
18.04 LTS bionic Not in release
16.04 LTS xenial Not in release
14.04 LTS trusty Not in release
linux-hwe 18.10 cosmic Not in release
18.04 LTS bionic
Not affected
16.04 LTS xenial
Fixed 4.15.0-43.46~16.04.1
14.04 LTS trusty Not in release
linux-hwe-edge 18.10 cosmic Not in release
18.04 LTS bionic
Not affected
16.04 LTS xenial
Fixed 4.15.0-43.46~16.04.1
14.04 LTS trusty Not in release
linux-kvm 18.10 cosmic
Fixed 4.18.0-1006.6
18.04 LTS bionic
Fixed 4.15.0-1028.28
16.04 LTS xenial
Fixed 4.4.0-1039.45
14.04 LTS trusty Not in release
linux-lts-trusty 18.10 cosmic Not in release
18.04 LTS bionic Not in release
16.04 LTS xenial Not in release
14.04 LTS trusty Not in release
linux-lts-utopic 18.10 cosmic Not in release
18.04 LTS bionic Not in release
16.04 LTS xenial Not in release
14.04 LTS trusty Not in release
linux-lts-vivid 18.10 cosmic Not in release
18.04 LTS bionic Not in release
16.04 LTS xenial Not in release
14.04 LTS trusty Not in release
linux-lts-wily 18.10 cosmic Not in release
18.04 LTS bionic Not in release
16.04 LTS xenial Not in release
14.04 LTS trusty Not in release
linux-lts-xenial 18.10 cosmic Not in release
18.04 LTS bionic Not in release
16.04 LTS xenial Not in release
14.04 LTS trusty
Fixed 4.4.0-141.167~14.04.1
linux-maguro 18.10 cosmic Not in release
18.04 LTS bionic Not in release
16.04 LTS xenial Not in release
14.04 LTS trusty Not in release
linux-mako 18.10 cosmic Not in release
18.04 LTS bionic Not in release
16.04 LTS xenial Ignored
14.04 LTS trusty Not in release
linux-manta 18.10 cosmic Not in release
18.04 LTS bionic Not in release
16.04 LTS xenial Not in release
14.04 LTS trusty Not in release
linux-oem 18.10 cosmic
Fixed 4.15.0-1030.35
18.04 LTS bionic
Fixed 4.15.0-1030.35
16.04 LTS xenial Ignored
14.04 LTS trusty Not in release
linux-oracle 18.10 cosmic
Not affected
18.04 LTS bionic
Not affected
16.04 LTS xenial
Not affected
14.04 LTS trusty Not in release
linux-raspi2 18.10 cosmic
Fixed 4.18.0-1008.10
18.04 LTS bionic
Fixed 4.15.0-1030.32
16.04 LTS xenial
Fixed 4.4.0-1102.110
14.04 LTS trusty Not in release
linux-snapdragon 18.10 cosmic Not in release
18.04 LTS bionic
Not affected
16.04 LTS xenial
Fixed 4.4.0-1106.111
14.04 LTS trusty Not in release

Patch details

For informational purposes only. We recommend not to cherry-pick updates. How can I get the fixes?

Package Patch details
linux

Severity score breakdown

Parameter Value
Base score 5.5 · Medium
Attack vector Local
Attack complexity Low
Privileges required Low
User interaction None
Scope Unchanged
Confidentiality High
Integrity impact None
Availability impact None
Vector CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

References

Related Ubuntu Security Notices (USN)

    • USN-3847-2
    • Linux kernel (HWE) vulnerabilities
    • 20 December 2018
    • USN-3847-3
    • Linux kernel (Azure) vulnerabilities
    • 20 December 2018
    • USN-3847-1
    • Linux kernel vulnerabilities
    • 20 December 2018
    • USN-3848-1
    • Linux kernel vulnerabilities
    • 20 December 2018
    • USN-3848-2
    • Linux kernel (Xenial HWE) vulnerabilities
    • 20 December 2018
    • USN-3846-1
    • Linux kernel vulnerability
    • 20 December 2018
    • USN-3849-2
    • Linux kernel (Trusty HWE) vulnerabilities
    • 20 December 2018
    • USN-3849-1
    • Linux kernel vulnerabilities
    • 20 December 2018

Other references