National Vulnerability Database

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CVE-2020-7463 Detail

Current Description

In FreeBSD 12.1-STABLE before r364644, 11.4-STABLE before r364651, 12.1-RELEASE before p9, 11.4-RELEASE before p3, and 11.3-RELEASE before p13, improper handling in the kernel causes a use-after-free bug by sending large user messages from multiple threads on the same SCTP socket. The use-after-free situation may result in unintended kernel behaviour including a kernel panic.


View Analysis Description

Severity

 


CVSS 3.x Severity and Metrics:

NIST CVSS score
NIST: NVD
Base Score:  5.5 MEDIUM
Vector:  CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H


NVD Analysts use publicly available information to associate vector strings and CVSS scores. We also display any CVSS information provided within the CVE List from the CNA.

Note: NVD Analysts have published a CVSS score for this CVE based on publicly available information at the time of analysis. The CNA has not provided a score within the CVE List.

References to Advisories, Solutions, and Tools

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Hyperlink Resource
http://seclists.org/fulldisclosure/2021/Apr/49 Third Party Advisory 
http://seclists.org/fulldisclosure/2021/Apr/50 Third Party Advisory 
http://seclists.org/fulldisclosure/2021/Apr/57 Third Party Advisory 
http://seclists.org/fulldisclosure/2021/Apr/58 Third Party Advisory 
http://seclists.org/fulldisclosure/2021/Apr/59 Third Party Advisory 
https://security.FreeBSD.org/advisories/FreeBSD-SA-20:25.sctp.asc Vendor Advisory 
https://support.apple.com/kb/HT212317 Third Party Advisory 
https://support.apple.com/kb/HT212318 Third Party Advisory 
https://support.apple.com/kb/HT212319 Third Party Advisory 
https://support.apple.com/kb/HT212321 Third Party Advisory 
https://support.apple.com/kb/HT212323
https://support.apple.com/kb/HT212324
https://support.apple.com/kb/HT212325 Third Party Advisory 

Weakness Enumeration

CWE-ID CWE Name Source
CWE-416 Use After Free cwe source acceptance level NIST  

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Change History

6 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2020-7463
NVD Published Date:
03/26/2021
NVD Last Modified:
07/22/2021
Source:
FreeBSD