CVE-2019-20422 is a medium-severity vulnerability in the Linux kernel prior to version 5.3.4, specifically affecting the fib6_rule_lookup function in net/ipv6/ip6_fib.c. This flaw involves incorrect handling of the RT6_LOOKUP_F_DST_NOREF flag, which can lead to a system crash. The vulnerability has a CVSS score of 5.5, indicating a local attack vector with low complexity, requiring local privileges, and resulting in high availability impact (system crash) without affecting confidentiality or integrity. There is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this CVE.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
< 5.3.4CPE matchmatch criteria | cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.0 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.
No media coverage found for this CVE.
The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.