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CVE-2020-7463

nvd nist
Published: Mar 26, 2021Modified: Jun 17, 2026

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5.5
Vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Exploitability: 1.8 / Impact: 3.6
Source: NVD

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.

Affected (34)

Freebsd
1 product
Freebsd
Apple
8 products
Icloud
Ipados
Iphone Os
Itunes
Macos
Safari
Tvos
Watchos
Configuration A
26 vulnerable
Vulnerable SoftwareAffected Versions
Freebsd
Freebsd
Version 11.3
Freebsd
Version 11.3 p10
Freebsd
Version 11.3 p11
Freebsd
Version 11.3 p12
Freebsd
Version 11.3 p1
Freebsd
Version 11.3 p2
Freebsd
Version 11.3 p3
Freebsd
Version 11.3 p4
Freebsd
Version 11.3 p5
Freebsd
Version 11.3 p6
Freebsd
Version 11.3 p7
Freebsd
Version 11.3 p8
Freebsd
Version 11.3 p9
Freebsd
Version 11.4
Freebsd
Version 11.4 p1
Freebsd
Version 11.4 p2
Freebsd
Version 12.1
Freebsd
Version 12.1 p1
Freebsd
Version 12.1 p2
Freebsd
Version 12.1 p3
Freebsd
Version 12.1 p4
Freebsd
Version 12.1 p5
Freebsd
Version 12.1 p6
Freebsd
Version 12.1 p7
Freebsd
Version 12.1 p8
Freebsd
Version 12.2
Configuration B
8 vulnerable
Vulnerable SoftwareAffected Versions
Icloud
Before 12.3
Ipados
Before 14.5
Iphone Os
Before 14.5
Itunes
Before 12.11.3
Macos
From 11.0 to 11.3
Safari
Before 14.1
Tvos
Before 14.5
Watchos
Before 7.4

Related CWEs

CWE-416
Use After Free
The product reuses or references memory after it has been freed. At some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.

References (26)

Source: secteam@freebsd.org
Mailing ListThird Party Advisory
Source: secteam@freebsd.org
Mailing ListThird Party Advisory
Source: secteam@freebsd.org
Mailing ListThird Party Advisory
Source: secteam@freebsd.org
Mailing ListThird Party Advisory
Source: secteam@freebsd.org
Mailing ListThird Party Advisory
Source: secteam@freebsd.org
Vendor Advisory
Source: secteam@freebsd.org
Third Party Advisory
Source: secteam@freebsd.org
Third Party Advisory
Source: secteam@freebsd.org
Third Party Advisory
Source: secteam@freebsd.org
Third Party Advisory
Source: secteam@freebsd.org
Third Party Advisory
Source: secteam@freebsd.org
Third Party Advisory
Source: secteam@freebsd.org
Third Party Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
Mailing ListThird Party Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
Mailing ListThird Party Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
Mailing ListThird Party Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
Mailing ListThird Party Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
Mailing ListThird Party Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
Vendor Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
Third Party Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
Third Party Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
Third Party Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
Third Party Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
Third Party Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
Third Party Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
Third Party Advisory

Timeline

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