7.5

CVE-2020-7469

In FreeBSD 12.2-STABLE before r367402, 11.4-STABLE before r368202, 12.2-RELEASE before p1, 12.1-RELEASE before p11 and 11.4-RELEASE before p5 the handler for a routing option caches a pointer into the packet buffer holding the ICMPv6 message. However, when processing subsequent options the packet buffer may be freed, rendering the cached pointer invalid. The network stack may later dereference the pointer, potentially triggering a use-after-free.

Data is provided by the National Vulnerability Database (NVD)
Freebsd ≫ Freebsd Version11.4 Update-
Freebsd ≫ Freebsd Version11.4 Updatebeta1
Freebsd ≫ Freebsd Version11.4 Updatep1
Freebsd ≫ Freebsd Version11.4 Updatep2
Freebsd ≫ Freebsd Version11.4 Updatep3
Freebsd ≫ Freebsd Version11.4 Updatep4
Freebsd ≫ Freebsd Version11.4 Updaterc1
Freebsd ≫ Freebsd Version11.4 Updaterc2
Freebsd ≫ Freebsd Version12.1 Update-
Freebsd ≫ Freebsd Version12.1 Updatep10
Freebsd ≫ Freebsd Version12.1 Updatep2
Freebsd ≫ Freebsd Version12.1 Updatep3
Freebsd ≫ Freebsd Version12.1 Updatep4
Freebsd ≫ Freebsd Version12.1 Updatep5
Freebsd ≫ Freebsd Version12.1 Updatep6
Freebsd ≫ Freebsd Version12.1 Updatep7
Freebsd ≫ Freebsd Version12.1 Updatep8
Freebsd ≫ Freebsd Version12.1 Updatep9
Freebsd ≫ Freebsd Version12.2 Update-
Zu dieser CVE wurde keine CISA KEV oder CERT.AT-Warnung gefunden.
EPSS Metriken
Type Source Score Percentile
EPSS FIRST.org 0.54% 0.666
CVSS Metriken
Source Base Score Exploit Score Impact Score Vector string
nvd@nist.gov 7.5 3.9 3.6
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
nvd@nist.gov 5 10 2.9
AV:N/AC:L/Au:N/C:N/I:N/A:P
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 Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.