pvrsrvkm.ko up to 2021-04-24 PowerVR GPU Kernel Driver PhysmemNewRamBackedPMR heap-based overflow
CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
---|---|---|
5.5 | $0-$5k | 0.00 |
A vulnerability classified as critical was found in pvrsrvkm.ko up to 2021-04-24. Affected by this vulnerability is the function PhysmemNewRamBackedPMR
of the component PowerVR GPU Kernel Driver. The manipulation with an unknown input leads to a heap-based overflow vulnerability. The CWE definition for the vulnerability is CWE-122. A heap overflow condition is a buffer overflow, where the buffer that can be overwritten is allocated in the heap portion of memory, generally meaning that the buffer was allocated using a routine such as malloc(). As an impact it is known to affect confidentiality, integrity, and availability.
The weakness was presented 04/25/2021. It is possible to read the advisory at mcyoloswagham.github.io. This vulnerability is known as CVE-2021-31795. Technical details of the vulnerability are known, but there is no available exploit.
There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.
Product
Name
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: 5.5VulDB Meta Temp Score: 5.5
VulDB Base Score: 5.5
VulDB Temp Score: 5.5
VulDB Vector: 🔍
VulDB Reliability: 🔍
CVSSv2
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💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
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Vector | Complexity | Authentication | Confidentiality | Integrity | Availability |
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unlock | unlock | unlock | unlock | unlock | unlock |
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unlock | unlock | unlock | unlock | unlock | unlock |
VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍
Exploiting
Class: Heap-based overflowCWE: CWE-122 / CWE-119
ATT&CK: Unknown
Local: No
Remote: Partially
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 |
Threat Intelligence
Interest: 🔍Active Actors: 🔍
Active APT Groups: 🔍
Countermeasures
Recommended: no mitigation knownStatus: 🔍
0-Day Time: 🔍
Timeline
04/24/2021 🔍04/25/2021 🔍
04/25/2021 🔍
04/29/2021 🔍
Sources
Advisory: mcyoloswagham.github.ioStatus: Not defined
CVE: CVE-2021-31795 (🔍)
Entry
Created: 04/25/2021 07:26Updated: 04/29/2021 14:17
Changes: 04/25/2021 07:26 (36), 04/29/2021 14:17 (2)
Complete: 🔍
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