Samsung Mobile Devices L(5.x)/M(6.0)/N(7.x) vnswap_init_backing_storage double free
CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
---|---|---|
7.3 | $0-$5k | 0.00 |
A vulnerability was found in Samsung Mobile Devices L(5.x)/M(6.0)/N(7.x) (Smartphone Operating System). It has been declared as critical. Affected by this vulnerability is some unknown functionality of the component vnswap_init_backing_storage. The manipulation with an unknown input leads to a double free vulnerability. The CWE definition for the vulnerability is CWE-415. The product calls free() twice on the same memory address, potentially leading to modification of unexpected memory locations. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:
An issue was discovered on Samsung mobile devices with L(5.x), M(6.0), and N(7.x) software. There is a race condition with a resultant double free in vnswap_init_backing_storage. The Samsung ID is SVE-2017-11177 (February 2018).
The weakness was disclosed 04/08/2020 (Website). The advisory is shared at security.samsungmobile.com. This vulnerability is known as CVE-2018-21086 since 04/07/2020. The attack can be launched remotely. The exploitation doesn't need any form of authentication. Neither technical details nor an exploit are publicly available.
Applying a patch is able to eliminate this problem.
The entries 111342, 111380, 115287 and 115285 are pretty similar.
Product
Type
Vendor
Name
Version
License
Support
- end of life (old version)
CPE 2.3
CPE 2.2
CVSSv4
VulDB CVSS-B Score: 🔍VulDB CVSS-BT Score: 🔍
VulDB Vector: 🔍
VulDB Reliability: 🔍
CVSSv3
VulDB Meta Base Score: 7.7VulDB Meta Temp Score: 7.5
VulDB Base Score: 7.3
VulDB Temp Score: 7.0
VulDB Vector: 🔍
VulDB Reliability: 🔍
NVD Base Score: 8.1
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
Class: Double freeCWE: CWE-415 / CWE-119
CAPEC: 🔍
ATT&CK: 🔍
Local: No
Remote: Yes
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
04/07/2020 🔍04/08/2020 🔍
04/09/2020 🔍
10/09/2020 🔍
Sources
Vendor: samsung.comAdvisory: security.samsungmobile.com
Status: Not defined
Confirmation: 🔍
CVE: CVE-2018-21086 (🔍)
See also: 🔍
Entry
Created: 04/09/2020 09:24Updated: 10/09/2020 07:15
Changes: 04/09/2020 09:24 (40), 04/09/2020 09:29 (18), 10/09/2020 07:15 (1)
Complete: 🔍
No comments yet. Languages: en.
Please log in to comment.