vulnerability
Ubuntu: (CVE-2019-20422): linux vulnerability
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 2 | (AV:L/AC:L/Au:N/C:N/I:N/A:P) | Jan 27, 2020 | Nov 19, 2024 | Sep 1, 2025 |
Severity
2
CVSS
(AV:L/AC:L/Au:N/C:N/I:N/A:P)
Published
Jan 27, 2020
Added
Nov 19, 2024
Modified
Sep 1, 2025
Description
In the Linux kernel before 5.3.4, fib6_rule_lookup in net/ipv6/ip6_fib.c mishandles the RT6_LOOKUP_F_DST_NOREF flag in a reference-count decision, leading to (for example) a crash that was identified by syzkaller, aka CID-7b09c2d052db.
Solutions
ubuntu-upgrade-linuxubuntu-upgrade-linux-awsubuntu-upgrade-linux-azureubuntu-upgrade-linux-gcpubuntu-upgrade-linux-hwe-edgeubuntu-upgrade-linux-kvmubuntu-upgrade-linux-oracleubuntu-upgrade-linux-raspi2
References
- CVE-2019-20422
- https://attackerkb.com/topics/CVE-2019-20422
- CWE-755
- URL-https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.3.4
- URL-https://git.kernel.org/linus/7b09c2d052db4b4ad0b27b97918b46a7746966fa
- URL-https://github.com/torvalds/linux/commit/7b09c2d052db4b4ad0b27b97918b46a7746966fa
- URL-https://www.cve.org/CVERecord?id=CVE-2019-20422
NEW
Explore Exposure Command
Confidently identify and prioritize exposures from endpoint to cloud with full attack surface visibility and threat-aware risk context.