Auth bypass in Linux Kernel
CVE-2019-5108
An exploitable denial-of-service vulnerability exists in the Linux kernel prior to mainline 5.3. An attacker could exploit this vulnerability by triggering AP to send IAPP location updates for stations before the required authentication process has completed. This could lead to different denial-of-service scenarios, either by causing CAM table attacks, or by leading to traffic flapping if faking already existing clients in other nearby APs of the same wireless infrastructure. An attacker can forge Authentication and Association Request packets to trigger this vulnerability.
EPSS: 0.101 (95.3th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.
Affected products
Weakness classification (CWE)
References
- talos-cna@cisco.com (x_refsource_UBUNTU, vendor-advisory, Third Party Advisory)
- talos-cna@cisco.com (x_refsource_UBUNTU, vendor-advisory, Third Party Advisory)
- talos-cna@cisco.com (x_refsource_UBUNTU, vendor-advisory, Third Party Advisory)
- talos-cna@cisco.com (x_refsource_UBUNTU, vendor-advisory, Third Party Advisory)
- talos-cna@cisco.com (x_refsource_UBUNTU, vendor-advisory, Third Party Advisory)
- talos-cna@cisco.com (mailing-list, x_refsource_MLIST, Mailing List, Third Party Advisory)
- talos-cna@cisco.com (mailing-list, x_refsource_MLIST, Mailing List, Third Party Advisory)
- talos-cna@cisco.com (mailing-list, x_refsource_MLIST, Mailing List, Third Party Advisory)
- talos-cna@cisco.com (vendor-advisory, Third Party Advisory, x_refsource_DEBIAN)
- talos-cna@cisco.com (Patch, Third Party Advisory, x_refsource_MISC)
Frequently asked questions
- What is CVE-2019-5108?
- CVE-2019-5108 is a medium-severity vulnerability in Linux Kernel, classified under Expected Behavior Violation. CVSS score: 6.5/10. Published 2019-12-23.
- How severe is CVE-2019-5108?
- Medium severity. CVSS v3 base score is 6.5 out of 10.