CVE-2019-12381
kernel: unchecked kmalloc of new_ra in ip_ra_control leads to denial of service
Severity
ModerateRed Hat Product Security
CVSS 3.0
Review impact separately from score.
Published · May 25, 2019
Updated · June 28, 2026
Description
A flaw was discovered in the Linux kernel that allows an attacker to crash a system under low-memory free conditions in the ipv4 router advertisement code. The attacker must be able to send 'router advertisements' which limits the attack vector to be on the same physical segment.
CVSS score applicability
The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.
Mitigation
No mitigation is specified in collected source.
CVSS / CWE
CVSS 3.0 · 5.5CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CWE-476 · NULL Pointer Dereference