2020-22284 | FSF IwIP 6LoWPAN Packet zepif_linkoutput buffer overflow
CVSS Meta Temp Score
CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system. |
Current Exploit Price (≈)
Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack. |
CTI Interest Score
Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability. |
---|---|---|
3.5 | $0-$5k | 0.10 |
A vulnerability has been found in FSF IwIP 2.1.2 and classified as problematic. This vulnerability affects the function zepif_linkoutput
of the component 6LoWPAN Packet Handler. The manipulation with an unknown input leads to a memory corruption vulnerability. The CWE definition for the vulnerability is CWE-120. As an impact it is known to affect confidentiality. CVE summarizes:
A buffer overflow vulnerability in the zepif_linkoutput() function of Free Software Foundation lwIP git head version and version 2.1.2 allows attackers to access sensitive information via a crafted 6LoWPAN packet.
The weakness was shared 07/23/2021. The advisory is shared for download at savannah.nongnu.org. This vulnerability was named CVE-2020-22284 since 08/13/2020. The exploitation appears to be easy. Access to the local network is required for this attack. The requirement for exploitation is a single authentication. There are known technical details, but no exploit is available. The current price for an exploit might be approx. USD $0-$5k (estimation calculated on 07/27/2021).
There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.
Vendor
Name
VulDB Meta Base Score: 3.5
VulDB Meta Temp Score: 3.5
VulDB Base Score: 3.5
VulDB Temp Score: 3.5
VulDB Vector: 🔒
VulDB Reliability: 🔍
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: 🔍
Class: Memory corruption
CWE: CWE-120
ATT&CK: Unknown
Local: No
Remote: Partially
Availability: 🔒
Status: Not defined
Price Prediction: 🔍
Current Price Estimation: 🔒
0-Day | unlock | unlock | unlock | unlock |
---|---|---|---|---|
Today | unlock | unlock | unlock | unlock |
Threat Intelligence
Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍Recommended: no mitigation known
Status: 🔍
0-Day Time: 🔒
08/13/2020 CVE assigned
07/23/2021 Advisory disclosed
07/23/2021 VulDB entry created
07/27/2021 VulDB last updateAdvisory: savannah.nongnu.org
Status: Not defined
CVE: CVE-2020-22284 (🔒)
Created: 07/23/2021 07:53
Updated: 07/27/2021 14:11
Changes: (2) source_cve_assigned source_cve_nvd_summary
Complete: 🔍
Comments
See the underground prices here!