CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
---|---|---|
6.6 | $5k-$25k | 0.00 |
A vulnerability classified as critical has been found in Google Android (Smartphone Operating System) (affected version unknown). Affected is the function msm_pcm_playback_close
of the component Linux Kernel. The manipulation with an unknown input leads to a use after free vulnerability (Free). CWE is classifying the issue as CWE-416. Referencing memory after it has been freed can cause a program to crash, use unexpected values, or execute code. This is going to have an impact on confidentiality, integrity, and availability. CVE summarizes:
In function msm_pcm_playback_close() in all Android releases from CAF using the Linux kernel, prtd is assigned substream->runtime->private_data. Later, prtd is freed. However, prtd is not sanitized and set to NULL, resulting in a dangling pointer. There are other functions that access the same memory (substream->runtime->private_data) with a NULL check, such as msm_pcm_volume_ctl_put(), which means this freed memory could be used.
The bug was discovered 05/01/2017. The weakness was shared 05/12/2017 (Website). The advisory is available at codeaurora.org. This vulnerability is traded as CVE-2017-8246 since 04/25/2017. The exploitability is told to be easy. Local access is required to approach this attack. The exploitation doesn't require any form of authentication. Technical details are known, but there is no available exploit. The structure of the vulnerability defines a possible price range of USD $5k-$25k at the moment (estimation calculated on 12/30/2019). It is expected to see the exploit prices for this product increasing in the near future.
The vulnerability was handled as a non-public zero-day exploit for at least 11 days. During that time the estimated underground price was around $25k-$100k.
Applying a patch is able to eliminate this problem.
The entries 103224, 103225, 103226 and 103227 are related to this item.
Product
Type
Vendor
Name
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: 6.8VulDB Meta Temp Score: 6.7
VulDB Base Score: 5.9
VulDB Temp Score: 5.7
VulDB Vector: 🔍
VulDB Reliability: 🔍
NVD Base Score: 7.8
NVD Vector: 🔍
CVSSv2
AV | AC | Au | C | I | A |
---|---|---|---|---|---|
💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
Vector | Complexity | Authentication | Confidentiality | Integrity | Availability |
---|---|---|---|---|---|
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: FreeClass: Use after free / Free
CWE: CWE-416 / CWE-119
CAPEC: 🔍
ATT&CK: 🔍
Local: Yes
Remote: No
Availability: 🔍
Status: Not defined
EPSS Score: 🔍
EPSS Percentile: 🔍
Price Prediction: 🔍
Current Price Estimation: 🔍
0-Day | unlock | unlock | unlock | unlock |
---|---|---|---|---|
Today | unlock | unlock | unlock | unlock |
Threat Intelligence
Interest: 🔍Active Actors: 🔍
Active APT Groups: 🔍
Countermeasures
Recommended: PatchStatus: 🔍
0-Day Time: 🔍
Timeline
04/25/2017 🔍05/01/2017 🔍
05/12/2017 🔍
05/12/2017 🔍
05/13/2017 🔍
12/30/2019 🔍
Sources
Vendor: google.comAdvisory: codeaurora.org
Status: Not defined
Confirmation: 🔍
CVE: CVE-2017-8246 (🔍)
scip Labs: https://www.scip.ch/en/?labs.20150917
See also: 🔍
Entry
Created: 05/13/2017 09:14Updated: 12/30/2019 08:23
Changes: 05/13/2017 09:14 (62), 12/30/2019 08:23 (2)
Complete: 🔍
No comments yet. Languages: en.
Please log in to comment.