CVE-2020-17445 Security Vulnerability & Exploit Details

CVE-2020-17445
Vulnerability Scoring

7.5

/10

Attack Complexity Details

Attack Complexity: Low Impact
Attack Vector: NETWORK
Privileges Required: None
Scope: UNCHANGED
User Interaction: NONE

CIA Impact Definition

Confidentiality:
Integrity:
Availability: HIGH IMPACT

CVE-2020-17445 Vulnerability Summary

An issue was discovered in picoTCP 1.7.0. The code for processing the IPv6 destination options does not check for a valid length of the destination options header. This results in an Out-of-Bounds Read, and, depending on the memory protection mechanism, this may result in Denial-of-Service in pico_ipv6_process_destopt() in pico_ipv6.c.

Access Complexity Graph

Above is the Access Complexity Graph for CVE-2020-17445. It helps visualize the difficulty level and privilege requirements needed to exploit this vulnerability, providing a quick assessment of its exploitation feasibility.

CVSS Score Breakdown Chart

Above is the CVSS Sub-score Breakdown for CVE-2020-17445, illustrating how Base, Impact, and Exploitability factors combine to form the overall severity rating. A higher sub-score typically indicates a more severe or easier-to-exploit vulnerability.

Impact Analysis

Below is the Impact Analysis for CVE-2020-17445, showing how Confidentiality, Integrity, and Availability might be affected if the vulnerability is exploited. Higher values usually signal greater potential damage.

Exploit Prediction Scoring System (EPSS)

The EPSS score estimates the probability that this vulnerability will be exploited in the near future.

EPSS Score: 0.11% (probability of exploit)

EPSS Percentile: 45.56% (lower percentile = lower relative risk)
This vulnerability is less risky than approximately 54.44% of others.

CVE-2020-17445 Detailed Information and External References

References

CWE

CWE-125

CAPEC

Overread Buffers CAPEC-540 An adversary attacks a target by providing input that causes an application to read beyond the boundary of a defined buffer. This typically occurs when a value influencing where to start or stop reading is set to reflect positions outside of the valid memory location of the buffer. This type of attack may result in exposure of sensitive information, a system crash, or arbitrary code execution.

Vulnerable Configurations

cpe:2.3:a:altran:picotcp:1.0:*:*:*:*:*:*:*
cpe:2.3:a:altran:picotcp:1.0:*:*:*:*:*:*:*
cpe:2.3:a:altran:picotcp:1.1:rc1:*:*:*:*:*:*
cpe:2.3:a:altran:picotcp:1.1:rc1:*:*:*:*:*:*
cpe:2.3:a:altran:picotcp:1.2:*:*:*:*:*:*:*
cpe:2.3:a:altran:picotcp:1.2:*:*:*:*:*:*:*
cpe:2.3:a:altran:picotcp:1.2.1:*:*:*:*:*:*:*
cpe:2.3:a:altran:picotcp:1.2.1:*:*:*:*:*:*:*
cpe:2.3:a:altran:picotcp:1.2.2:*:*:*:*:*:*:*
cpe:2.3:a:altran:picotcp:1.2.2:*:*:*:*:*:*:*
cpe:2.3:a:altran:picotcp:1.2.3:*:*:*:*:*:*:*
cpe:2.3:a:altran:picotcp:1.2.3:*:*:*:*:*:*:*
cpe:2.3:a:altran:picotcp:1.2.4:*:*:*:*:*:*:*
cpe:2.3:a:altran:picotcp:1.2.4:*:*:*:*:*:*:*
cpe:2.3:a:altran:picotcp:1.3.0:*:*:*:*:*:*:*
cpe:2.3:a:altran:picotcp:1.3.0:*:*:*:*:*:*:*
cpe:2.3:a:altran:picotcp:1.4.0:*:*:*:*:*:*:*
cpe:2.3:a:altran:picotcp:1.4.0:*:*:*:*:*:*:*
cpe:2.3:a:altran:picotcp:1.4.2:*:*:*:*:*:*:*
cpe:2.3:a:altran:picotcp:1.4.2:*:*:*:*:*:*:*
cpe:2.3:a:altran:picotcp:1.5.0:*:*:*:*:*:*:*
cpe:2.3:a:altran:picotcp:1.5.0:*:*:*:*:*:*:*
cpe:2.3:a:altran:picotcp:1.5.1:*:*:*:*:*:*:*
cpe:2.3:a:altran:picotcp:1.5.1:*:*:*:*:*:*:*
cpe:2.3:a:altran:picotcp:1.6.0:*:*:*:*:*:*:*
cpe:2.3:a:altran:picotcp:1.6.0:*:*:*:*:*:*:*
cpe:2.3:a:altran:picotcp:1.6.1:*:*:*:*:*:*:*
cpe:2.3:a:altran:picotcp:1.6.1:*:*:*:*:*:*:*
cpe:2.3:a:altran:picotcp:1.6.2:*:*:*:*:*:*:*
cpe:2.3:a:altran:picotcp:1.6.2:*:*:*:*:*:*:*
cpe:2.3:a:altran:picotcp:1.7.0:*:*:*:*:*:*:*
cpe:2.3:a:altran:picotcp:1.7.0:*:*:*:*:*:*:*

CVSS3 Source

nvd@nist.gov

CVSS3 Type

Primary

CVSS3 Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

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CVE-2020-17445 Vulnerability Scoring