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CVE-2017-14156

Date: September 5, 2017

The atyfb_ioctl function in drivers/video/fbdev/aty/atyfb_base.c in the Linux kernel through 4.12.10 does not initialize a certain data structure, which allows local users to obtain sensitive information from kernel stack memory by reading locations associated with padding bytes.

Language: C

Severity Score

Related Resources (12)

https://github.com/torvalds/linux/pull/441
https://security-tracker.debian.org/tracker/CVE-2017-14156
http://www.debian.org/security/2017/dsa-3981
http://www.securityfocus.com/bid/100634
https://nvd.nist.gov/vuln/detail/CVE-2017-14156
https://marc.info/?l=linux-kernel&m=150453196710422&w=2
https://access.redhat.com/security/cve/CVE-2017-14156
https://usn.ubuntu.com/3583-2/
https://usn.ubuntu.com/3583-1/
https://people.canonical.com/~ubuntu-security/cve/CVE-2017-14156
https://marc.info/?l=linux-kernel&m=150401461613306&w=2
https://www.mend.io/vulnerability-database/CVE-2017-14156

Severity Score

Weakness Type (CWE)

Exposure of Sensitive Information to an Unauthorized Actor

CWE-200

CVSS v3.1

Base Score:
Attack Vector (AV): LOCAL
Attack Complexity (AC): LOW
Privileges Required (PR): LOW
User Interaction (UI): NONE
Scope (S): UNCHANGED
Confidentiality (C): HIGH
Integrity (I): NONE
Availability (A): NONE

CVSS v2

Base Score:
Access Vector (AV): LOCAL
Access Complexity (AC): LOW
Authentication (AU): NONE
Confidentiality (C): PARTIAL
Integrity (I): NONE
Availability (A): NONE
Additional information:

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