Linux Kernel up to 4.12.10 atyfb_base.c atyfb_ioctl Kernel Memory information disclosure
CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
---|---|---|
4.3 | $0-$5k | 0.00 |
A vulnerability was found in Linux Kernel up to 4.12.10 (Operating System). It has been rated as problematic. This issue affects the function atyfb_ioctl
of the file drivers/video/fbdev/aty/atyfb_base.c. The manipulation with an unknown input leads to a information disclosure vulnerability (Kernel Memory). Using CWE to declare the problem leads to CWE-200. The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information. Impacted is confidentiality. The summary by CVE is:
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.
The bug was discovered 09/05/2017. The weakness was disclosed 09/05/2017 (Website). It is possible to read the advisory at securityfocus.com. The identification of this vulnerability is CVE-2017-14156 since 09/05/2017. Attacking locally is a requirement. The successful exploitation requires a simple authentication. Technical details of the vulnerability are known, but there is no available exploit. The attack technique deployed by this issue is T1592 according to MITRE ATT&CK.
The vulnerability scanner Nessus provides a plugin with the ID 103363 (Debian DLA-1099-1 : linux security update (BlueBorne) (Stack Clash)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Debian Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 176163 (Debian Security Update for Linux (DSA 3981-1)).
Upgrading eliminates this vulnerability. A possible mitigation has been published 3 weeks after the disclosure of the vulnerability.
The vulnerability is also documented in the vulnerability database at Tenable (103363). The entries 105390, 105605, 106083 and 106121 are pretty similar.
Product
Type
Vendor
Name
Version
License
CPE 2.3
CPE 2.2
CVSSv4
VulDB CVSS-B Score: 🔍VulDB CVSS-BT Score: 🔍
VulDB Vector: 🔍
VulDB Reliability: 🔍
CVSSv3
VulDB Meta Base Score: 4.4VulDB Meta Temp Score: 4.3
VulDB Base Score: 3.3
VulDB Temp Score: 3.2
VulDB Vector: 🔍
VulDB Reliability: 🔍
NVD Base Score: 5.5
NVD Vector: 🔍
CVSSv2
AV | AC | Au | C | I | A |
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💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
Vector | Complexity | Authentication | Confidentiality | Integrity | Availability |
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unlock | unlock | unlock | unlock | unlock | unlock |
unlock | unlock | unlock | unlock | unlock | unlock |
unlock | unlock | unlock | unlock | unlock | unlock |
VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍
NVD Base Score: 🔍
Exploiting
Name: Kernel MemoryClass: Information disclosure / Kernel Memory
CWE: CWE-200 / CWE-284 / CWE-266
ATT&CK: T1592
Local: Yes
Remote: No
Availability: 🔍
Status: Not defined
EPSS Score: 🔍
EPSS Percentile: 🔍
Price Prediction: 🔍
Current Price Estimation: 🔍
0-Day | unlock | unlock | unlock | unlock |
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Today | unlock | unlock | unlock | unlock |
Nessus ID: 103363
Nessus Name: Debian DLA-1099-1 : linux security update (BlueBorne) (Stack Clash)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍
OpenVAS ID: 53754
OpenVAS Name: Debian Security Advisory DSA 3981-1 (linux - security update)
OpenVAS File: 🔍
OpenVAS Family: 🔍
Qualys ID: 🔍
Qualys Name: 🔍
Threat Intelligence
Interest: 🔍Active Actors: 🔍
Active APT Groups: 🔍
Countermeasures
Recommended: UpgradeStatus: 🔍
Reaction Time: 🔍
0-Day Time: 🔍
Exposure Time: 🔍
Patch: github.com
Timeline
09/05/2017 🔍09/05/2017 🔍
09/05/2017 🔍
09/05/2017 🔍
09/05/2017 🔍
09/06/2017 🔍
09/20/2017 🔍
09/21/2017 🔍
12/27/2022 🔍
Sources
Vendor: kernel.orgAdvisory: USN-3583-1⛔
Researcher: sohu0106
Status: Not defined
CVE: CVE-2017-14156 (🔍)
OVAL: 🔍
SecurityFocus: 100634 - Linux Kernel 'drivers/video/fbdev/aty/atyfb_base.c' Local Information Disclosure Vulnerability
See also: 🔍
Entry
Created: 09/06/2017 08:48Updated: 12/27/2022 18:41
Changes: 09/06/2017 08:48 (72), 11/13/2019 08:05 (11), 01/10/2021 17:03 (2), 12/27/2022 18:41 (4)
Complete: 🔍
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