IBM Host firmware for LC-class Systems Firmware stack-based overflow
CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
---|---|---|
2.7 | $5k-$25k | 0.00 |
A vulnerability, which was classified as problematic, has been found in IBM Host firmware for LC-class Systems (Firmware Software) (the affected version unknown). Affected by this issue is an unknown part of the component Firmware Handler. The manipulation with an unknown input leads to a stack-based overflow vulnerability. Using CWE to declare the problem leads to CWE-121. A stack-based buffer overflow condition is a condition where the buffer being overwritten is allocated on the stack (i.e., is a local variable or, rarely, a parameter to a function). Impacted is availability.
The weakness was presented 05/26/2021. The advisory is shared for download at ibm.com. This vulnerability is handled as CVE-2020-4839. There are neither technical details nor an exploit publicly available. The current price for an exploit might be approx. USD $0-$5k (estimation calculated on 05/26/2021). It is expected to see the exploit prices for this product increasing in the near future.
There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.
The vulnerability is also documented in the vulnerability database at X-Force (190037).
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: 2.7VulDB Meta Temp Score: 2.7
VulDB Base Score: 2.7
VulDB Temp Score: 2.7
VulDB Vector: 🔍
VulDB Reliability: 🔍
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: 🔍
Exploiting
Class: Stack-based overflowCWE: CWE-121 / CWE-119
ATT&CK: Unknown
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: no mitigation knownStatus: 🔍
0-Day Time: 🔍
Timeline
12/30/2019 🔍05/26/2021 🔍
05/26/2021 🔍
05/29/2021 🔍
Sources
Vendor: ibm.comAdvisory: ibm.com
Status: Confirmed
Confirmation: 🔍
CVE: CVE-2020-4839 (🔍)
X-Force: 190037
Entry
Created: 05/26/2021 08:04Updated: 05/29/2021 09:23
Changes: 05/26/2021 08:04 (38), 05/29/2021 09:22 (3), 05/29/2021 09:23 (1)
Complete: 🔍
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