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Vulnerability CVE-2020-7463
Published: 2021-03-26
| 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. |
Type:
CWE-416 (Use After Free)
CVSS2 => (AV:L/AC:L/Au:N/C:N/I:N/A:C)
| CVSS Base Score |
Impact Subscore |
Exploitability Subscore |
4.9/10 |
6.9/10 |
3.9/10 |
| Exploit range |
Attack complexity |
Authentication |
Local |
Low |
No required |
| Confidentiality impact |
Integrity impact |
Availability impact |
None |
None |
Complete |
References: |
https://security.FreeBSD.org/advisories/FreeBSD-SA-20:25.sctp.asc
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