Vulnerability CVE-2018-14656
Published: 2018-10-08   Modified: 2018-10-09

Description:
A missing address check in the callers of the show_opcodes() in the Linux kernel allows an attacker to dump the kernel memory at an arbitrary kernel address into the dmesg log.

Type:

CWE-20

 (Improper Input Validation)

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

CVSS Base Score
Impact Subscore
Exploitability Subscore
2.1/10
2.9/10
3.9/10
Exploit range
Attack complexity
Authentication
Local
Low
No required
Confidentiality impact
Integrity impact
Availability impact
Partial
None
None
Affected software
Linux -> Linux kernel 

 References:
http://www.securitytracker.com/id/1041804
https://bugs.chromium.org/p/project-zero/issues/detail?id=1650
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-14656
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=342db04ae71273322f0011384a9ed414df8bdae4
https://lore.kernel.org/lkml/20180828154901.112726-1-jannh@google.com/T/
https://seclists.org/oss-sec/2018/q4/9
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