CVE-2020-7469
HIGHFreeBSD Use-After-Free in ICMPv6 Routing Option Handler
Title source: llmDescription
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.
References (2)
Core 2
Core References
Vendor Advisory x_refsource_misc
https://security.FreeBSD.org/advisories/FreeBSD-SA-20:31.icmp6.asc
Third Party Advisory x_refsource_confirm
https://security.netapp.com/advisory/ntap-20210720-0001/
Scores
CVSS v3
7.5
EPSS
0.0054
EPSS Percentile
67.7%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Details
CWE
CWE-416
Status
published
Products (4)
freebsd/freebsd
11.4 (8 CPE variants)
freebsd/freebsd
12.1 (10 CPE variants)
freebsd/freebsd
12.2
netapp/clustered_data_ontap
Published
Jun 04, 2021
Tracked Since
Feb 18, 2026