5.5

CVE-2020-7462

In 11.4-PRERELEASE before r360733 and 11.3-RELEASE before p13, improper mbuf handling in the kernel causes a use-after-free bug by sending IPv6 Hop-by-Hop options over the loopback interface. The use-after-free situation may result in unintended kernel behaviour including a kernel panic.

Data is provided by the National Vulnerability Database (NVD)
Freebsd ≫ Freebsd Version11.3 Update-
Freebsd ≫ Freebsd Version11.3 Updatep1
Freebsd ≫ Freebsd Version11.3 Updatep10
Freebsd ≫ Freebsd Version11.3 Updatep11
Freebsd ≫ Freebsd Version11.3 Updatep12
Freebsd ≫ Freebsd Version11.3 Updatep2
Freebsd ≫ Freebsd Version11.3 Updatep3
Freebsd ≫ Freebsd Version11.3 Updatep4
Freebsd ≫ Freebsd Version11.3 Updatep5
Freebsd ≫ Freebsd Version11.3 Updatep6
Freebsd ≫ Freebsd Version11.3 Updatep7
Freebsd ≫ Freebsd Version11.3 Updatep8
Freebsd ≫ Freebsd Version11.3 Updatep9
Freebsd ≫ Freebsd Version11.4 Update-
Zu dieser CVE wurde keine CISA KEV oder CERT.AT-Warnung gefunden.
EPSS Metriken
Type Source Score Percentile
EPSS FIRST.org 0.05% 0.126
CVSS Metriken
Source Base Score Exploit Score Impact Score Vector string
nvd@nist.gov 5.5 1.8 3.6
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
nvd@nist.gov 4.9 3.9 6.9
AV:L/AC:L/Au:N/C:N/I:N/A:C
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 Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.