Vulnerability CVE-2018-16658
Published: 2018-09-07

Description:
An issue was discovered in the Linux kernel before 4.18.6. An information leak in cdrom_ioctl_drive_status 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.

Type:

CWE-200

 (Information Exposure)

CVSS2 => (AV:L/AC:L/Au:N/C:P/I:N/A:P)

CVSS Base Score
Impact Subscore
Exploitability Subscore
3.6/10
4.9/10
3.9/10
Exploit range
Attack complexity
Authentication
Local
Low
No required
Confidentiality impact
Integrity impact
Availability impact
Partial
None
Partial
Affected software
Linux -> Linux kernel 
Debian -> Debian linux 
Canonical -> Ubuntu linux 

 References:
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://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
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