9.8
CRITICAL CVSS 3.1
CVE-2019-20427
Lustre ptlrpc Buffer Overflow and Remote Code Execution Vulnerability
Description

In the Lustre file system before 2.12.3, the ptlrpc module has a buffer overflow and panic, and possibly remote code execution, due to the lack of validation for specific fields of packets sent by a client. Interaction between req_capsule_get_size and tgt_brw_write leads to a tgt_shortio2pages integer signedness error.

INFO

Published Date :

Jan. 27, 2020, 5:15 a.m.

Last Modified :

Nov. 21, 2024, 4:38 a.m.

Remotely Exploit :

Yes !
Affected Products

The following products are affected by CVE-2019-20427 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Lustre lustre
CVSS Scores
The Common Vulnerability Scoring System is a standardized framework for assessing the severity of vulnerabilities in software and systems. We collect and displays CVSS scores from various sources for each CVE.
Score Version Severity Vector Exploitability Score Impact Score Source
CVSS 2.0 HIGH [email protected]
CVSS 3.1 CRITICAL [email protected]
Solution
This information is provided by the 3rd party feeds.
  • There is no known solution at this time.
References to Advisories, Solutions, and Tools

Here, you will find a curated list of external links that provide in-depth information, practical solutions, and valuable tools related to CVE-2019-20427.

URL Resource
http://lustre.org/ Product Vendor Advisory
http://wiki.lustre.org/Lustre_2.12.3_Changelog Release Notes Vendor Advisory
https://jira.whamcloud.com/browse/LU-12600 Exploit Issue Tracking Third Party Advisory
https://review.whamcloud.com/#/c/35867/ Exploit Third Party Advisory
http://lustre.org/ Product Vendor Advisory
http://wiki.lustre.org/Lustre_2.12.3_Changelog Release Notes Vendor Advisory
https://jira.whamcloud.com/browse/LU-12600 Exploit Issue Tracking Third Party Advisory
https://review.whamcloud.com/#/c/35867/ Exploit Third Party Advisory
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2019-20427 is associated with the following CWEs:

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2019-20427 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2019-20427 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • CVE Modified by af854a3a-2127-422b-91ae-364da2661108

    Nov. 21, 2024

    Action Type Old Value New Value
    Added Reference http://lustre.org/
    Added Reference http://wiki.lustre.org/Lustre_2.12.3_Changelog
    Added Reference https://jira.whamcloud.com/browse/LU-12600
    Added Reference https://review.whamcloud.com/#/c/35867/
  • CVE Modified by [email protected]

    May. 14, 2024

    Action Type Old Value New Value
  • Initial Analysis by [email protected]

    Jan. 29, 2020

    Action Type Old Value New Value
    Added CVSS V2 NIST (AV:N/AC:L/Au:N/C:P/I:P/A:C)
    Added CVSS V3.1 NIST AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
    Changed Reference Type http://lustre.org/ No Types Assigned http://lustre.org/ Product, Vendor Advisory
    Changed Reference Type http://wiki.lustre.org/Lustre_2.12.3_Changelog No Types Assigned http://wiki.lustre.org/Lustre_2.12.3_Changelog Release Notes, Vendor Advisory
    Changed Reference Type https://jira.whamcloud.com/browse/LU-12600 No Types Assigned https://jira.whamcloud.com/browse/LU-12600 Exploit, Issue Tracking, Third Party Advisory
    Changed Reference Type https://review.whamcloud.com/#/c/35867/ No Types Assigned https://review.whamcloud.com/#/c/35867/ Exploit, Third Party Advisory
    Added CWE NIST CWE-120
    Added CPE Configuration OR *cpe:2.3:a:lustre:lustre:*:*:*:*:*:*:*:* versions up to (excluding) 2.12.3
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
Vulnerability Scoring Details
Base CVSS Score: 9.8
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality Impact
Integrity Impact
Availability Impact
Base CVSS Score: 9
Access Vector
Access Complexity
Authentication
Confidentiality Impact
Integrity Impact
Availability Impact
Exploit Prediction

EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.

3.52 }} -0.16%

score

0.86980

percentile