In the Linux kernel through 5.8.7, local attackers able to inject conntrack netlink configuration could overflow a local buffer, causing crashes or triggering use of incorrect protocol numbers in ctnetlink_parse_tuple_filter in net/netfilter/nf_conntrack_netlink.c, aka CID-1cc5ef91d2ff.
https://twitter.com/grsecurity/status/1303646421158109185
https://security.netapp.com/advisory/ntap-20201009-0001/
https://www.debian.org/security/2020/dsa-4774
https://lists.debian.org/debian-lts-announce/2020/10/msg00028.html
https://lists.debian.org/debian-lts-announce/2020/10/msg00034.html
https://lists.debian.org/debian-lts-announce/2020/10/msg00032.html
Source: MITRE
Published: 2020-09-09
Updated: 2022-11-16
Type: CWE-120
Base Score: 3.6
Vector: AV:L/AC:L/Au:N/C:N/I:P/A:P
Impact Score: 4.9
Exploitability Score: 3.9
Severity: LOW
Base Score: 6
Vector: CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:H
Impact Score: 5.2
Exploitability Score: 0.8
Severity: MEDIUM