CVE-2020-14375 Security Vulnerability & Exploit Details

CVE-2020-14375
Vulnerability Scoring

7.8

/10

Attack Complexity Details

Attack Complexity: HIGH IMPACT
Attack Vector: LOCAL
Privileges Required: Low Impact
Scope: CHANGED
User Interaction: NONE

CIA Impact Definition

Confidentiality: HIGH IMPACT
Integrity: HIGH IMPACT
Availability: HIGH IMPACT

CVE-2020-14375 Vulnerability Summary

A flaw was found in dpdk in versions before 18.11.10 and before 19.11.5. Virtio ring descriptors, and the data they describe are in a region of memory accessible by from both the virtual machine and the host. An attacker in a VM can change the contents of the memory after vhost_crypto has validated it. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability.

Access Complexity Graph

Above is the Access Complexity Graph for CVE-2020-14375. 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-2020-14375, 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-2020-14375, 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: 0.045% (probability of exploit)

EPSS Percentile: 16.56% (lower percentile = lower relative risk)
This vulnerability is less risky than approximately 83.44% of others.

CVE-2020-14375 Detailed Information and External References

References

CWE

CWE-367

CAPEC

Leveraging Race Conditions via Symbolic Links CAPEC-27 This attack leverages the use of symbolic links (Symlinks) in order to write to sensitive files. An attacker can create a Symlink link to a target file not otherwise accessible to them. When the privileged program tries to create a temporary file with the same name as the Symlink link, it will actually write to the target file pointed to by the attackers' Symlink link. If the attacker can insert malicious content in the temporary file they will be writing to the sensitive file by using the Symlink. The race occurs because the system checks if the temporary file exists, then creates the file. The attacker would typically create the Symlink during the interval between the check and the creation of the temporary file.
Leveraging Time-of-Check and Time-of-Use (TOCTOU) Race Conditions CAPEC-29 This attack targets a race condition occurring between the time of check (state) for a resource and the time of use of a resource. A typical example is file access. The adversary can leverage a file access race condition by "running the race", meaning that they would modify the resource between the first time the target program accesses the file and the time the target program uses the file. During that period of time, the adversary could replace or modify the file, causing the application to behave unexpectedly.

Vulnerable Configurations

cpe:2.3:a:dpdk:data_plane_development_kit:18.02.1:*:*:*:*:*:*:*
cpe:2.3:a:dpdk:data_plane_development_kit:18.02.1:*:*:*:*:*:*:*
cpe:2.3:a:dpdk:data_plane_development_kit:18.02.2:*:*:*:*:*:*:*
cpe:2.3:a:dpdk:data_plane_development_kit:18.02.2:*:*:*:*:*:*:*
cpe:2.3:a:dpdk:data_plane_development_kit:18.05:*:*:*:*:*:*:*
cpe:2.3:a:dpdk:data_plane_development_kit:18.05:*:*:*:*:*:*:*
cpe:2.3:a:dpdk:data_plane_development_kit:18.08:*:*:*:*:*:*:*
cpe:2.3:a:dpdk:data_plane_development_kit:18.08:*:*:*:*:*:*:*
cpe:2.3:a:dpdk:data_plane_development_kit:18.08.1:*:*:*:*:*:*:*
cpe:2.3:a:dpdk:data_plane_development_kit:18.08.1:*:*:*:*:*:*:*
cpe:2.3:a:dpdk:data_plane_development_kit:18.11:*:*:*:*:*:*:*
cpe:2.3:a:dpdk:data_plane_development_kit:18.11:*:*:*:*:*:*:*
cpe:2.3:a:dpdk:data_plane_development_kit:18.11.1:*:*:*:*:*:*:*
cpe:2.3:a:dpdk:data_plane_development_kit:18.11.1:*:*:*:*:*:*:*
cpe:2.3:a:dpdk:data_plane_development_kit:18.11.2:*:*:*:*:*:*:*
cpe:2.3:a:dpdk:data_plane_development_kit:18.11.2:*:*:*:*:*:*:*
cpe:2.3:a:dpdk:data_plane_development_kit:18.11.3:*:*:*:*:*:*:*
cpe:2.3:a:dpdk:data_plane_development_kit:18.11.3:*:*:*:*:*:*:*
cpe:2.3:a:dpdk:data_plane_development_kit:18.11.4:*:*:*:*:*:*:*
cpe:2.3:a:dpdk:data_plane_development_kit:18.11.4:*:*:*:*:*:*:*
cpe:2.3:a:dpdk:data_plane_development_kit:18.11.5:*:*:*:*:*:*:*
cpe:2.3:a:dpdk:data_plane_development_kit:18.11.5:*:*:*:*:*:*:*
cpe:2.3:a:dpdk:data_plane_development_kit:19.02:*:*:*:*:*:*:*
cpe:2.3:a:dpdk:data_plane_development_kit:19.02:*:*:*:*:*:*:*
cpe:2.3:a:dpdk:data_plane_development_kit:19.05:*:*:*:*:*:*:*
cpe:2.3:a:dpdk:data_plane_development_kit:19.05:*:*:*:*:*:*:*
cpe:2.3:a:dpdk:data_plane_development_kit:19.08:*:*:*:*:*:*:*
cpe:2.3:a:dpdk:data_plane_development_kit:19.08:*:*:*:*:*:*:*
cpe:2.3:a:dpdk:data_plane_development_kit:19.08.1:*:*:*:*:*:*:*
cpe:2.3:a:dpdk:data_plane_development_kit:19.08.1:*:*:*:*:*:*:*
cpe:2.3:a:dpdk:data_plane_development_kit:19.08.2:*:*:*:*:*:*:*
cpe:2.3:a:dpdk:data_plane_development_kit:19.08.2:*:*:*:*:*:*:*
cpe:2.3:a:dpdk:data_plane_development_kit:19.11:*:*:*:*:*:*:*
cpe:2.3:a:dpdk:data_plane_development_kit:19.11:*:*:*:*:*:*:*
cpe:2.3:o:canonical:ubuntu_linux:20.04:*:*:*:lts:*:*:*
cpe:2.3:o:canonical:ubuntu_linux:20.04:*:*:*:lts:*:*:*
cpe:2.3:o:opensuse:leap:15.1:*:*:*:*:*:*:*
cpe:2.3:o:opensuse:leap:15.1:*:*:*:*:*:*:*
cpe:2.3:o:opensuse:leap:15.2:*:*:*:*:*:*:*
cpe:2.3:o:opensuse:leap:15.2:*:*:*:*:*:*:*

CVSS3 Source

nvd@nist.gov

CVSS3 Type

Primary

CVSS3 Vector

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

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CVE-2020-14375 Vulnerability Scoring