kernel: triggering AP to send IAPP location updates for stations before the required authentication process has completed can lead to DoS
Published Dec 23, 2019
6.5
MEDIUMCVSS 3.1
EPSS 10.11%
Description
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.
Affected products
- Vendor n/a Product Linux kernel Defaultn/a
- Version Linux 4.14.98-v7+StatusaffectedConstraints-
- Version
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | ||||||
|---|---|---|---|---|---|---|---|---|---|
| n/a | Linux kernel | n/a |
|
Configuration 1
- < 5.3
Configuration 2
- 8.0
- 9.0
Configuration 3
- 14.04
- 16.04
- 18.04
Configuration 4
- n/a
- n/a
- n/a
- ≥ 11.0.0 · ≤ 11.70.1
- n/a
- n/a
- n/a
Configuration 5
- n/a
Configuration 6
- n/a
Configuration 7
- n/a
Configuration 8
- n/a
Configuration 9
- n/a
Configuration 10
- 8.2
No data.
Red Hat Enterprise Linux 7
kernel-0:3.10.0-1127.el7
Fixed · RHSA-2020:1016
Red Hat Enterprise Linux 7
kernel-alt-0:4.14.0-115.19.1.el7a
Fixed · RHSA-2020:1493
Red Hat Enterprise Linux 7
kernel-rt-0:3.10.0-1127.19.1.rt56.1116.el7
Fixed · RHBA-2020:3527
Red Hat Enterprise Linux 8
kernel-0:4.18.0-193.el8
Fixed · RHSA-2020:1769
Red Hat Enterprise Linux 8
kernel-rt-0:4.18.0-193.rt13.51.el8
Fixed · RHSA-2020:1567
Red Hat Enterprise Linux 5
kernel
Out of support scope
Red Hat Enterprise Linux 6
kernel
Out of support scope
Red Hat Enterprise MRG 2
kernel-rt
Will not fix
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 7 | kernel-0:3.10.0-1127.el7 | Fixed | RHSA-2020:1016 |
| Red Hat Enterprise Linux 7 | kernel-alt-0:4.14.0-115.19.1.el7a | Fixed | RHSA-2020:1493 |
| Red Hat Enterprise Linux 7 | kernel-rt-0:3.10.0-1127.19.1.rt56.1116.el7 | Fixed | RHBA-2020:3527 |
| Red Hat Enterprise Linux 8 | kernel-0:4.18.0-193.el8 | Fixed | RHSA-2020:1769 |
| Red Hat Enterprise Linux 8 | kernel-rt-0:4.18.0-193.rt13.51.el8 | Fixed | RHSA-2020:1567 |
| Red Hat Enterprise Linux 5 | kernel | Out of support scope | n/a |
| Red Hat Enterprise Linux 6 | kernel | Out of support scope | n/a |
| Red Hat Enterprise MRG 2 | kernel-rt | Will not fix | n/a |
No package ranges for this CVE.
Remediation
Red Hat mitigation
At this time there is no known mitigations to this issue other than to install the updated kernel package.
Metrics
No CVSS v4.0 score for this CVE.
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H
AV:A/AC:L/Au:N/C:N/I:N/A:P
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 3, 2026.
Score over time
2021–2026- EPSS v1
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v1
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (14 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 3, 2026 | 10.11% (0.10114) | 95.52th | v5 (v2026.06.15) |
| Jun 15, 2026 | 10.11% (0.10114) | 95.03th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.33% (0.00328) | 53.45th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.12% (0.00122) | 48.17th | v3 (v2023.03.01) |
| Nov 17, 2023 | 0.12% (0.00122) | 46.37th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.12% (0.00119) | 44.35th | v3 (v2023.03.01) |
| Mar 6, 2023 | 2.69% (0.02686) | 82.85th | v2 (v2022.01.01) |
| Apr 1, 2022 | 2.69% (0.02686) | 81.17th | v2 (v2022.01.01) |
| Feb 4, 2022 | 7.83% (0.07834) | 81.57th | v2 (v2022.01.01) |
| Feb 3, 2022 | 12.48% (0.12481) | 88.86th | v1 |
| Jan 6, 2022 | 12.48% (0.12481) | 88.73th | v1 |
| Sep 1, 2021 | 3.08% (0.03080) | 81.27th | v1 |
| Jun 15, 2021 | 3.08% (0.03080) | 0.00th | v1 |
| Apr 14, 2021 | 2.88% (0.02880) | 0.00th | v1 |
References (18)
- http://packetstormsecurity.com/files/156455/Kernel-Live-Patch-Security-Notice-LSN-0063-1.html x_refsource_MISCThird Party AdvisoryVDB Entry
- https://access.redhat.com/security/cve/CVE-2019-5108 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1789927 Issue Tracking
- https://git.kernel.org/linus/3e493173b7841259a08c5c8e5cbe90adb349da7e x_refsource_MISCMailing ListPatchVendor Advisory
- https://lists.debian.org/debian-lts-announce/2020/06/msg00011.html mailing-listx_refsource_MLISTMailing ListThird Party Advisory
- https://lists.debian.org/debian-lts-announce/2020/06/msg00012.html mailing-listx_refsource_MLISTMailing ListThird Party Advisory
- https://lists.debian.org/debian-lts-announce/2020/06/msg00013.html mailing-listx_refsource_MLISTMailing ListThird Party Advisory
- https://nvd.nist.gov/vuln/detail/CVE-2019-5108
- https://security.netapp.com/advisory/ntap-20200204-0002/ x_refsource_CONFIRMThird Party Advisory
- https://talosintelligence.com/vulnerability_reports/TALOS-2019-0900 x_refsource_MISCExploitThird Party Advisory
- https://usn.ubuntu.com/4285-1/ vendor-advisoryx_refsource_UBUNTUThird Party Advisory
- https://usn.ubuntu.com/4286-1/ vendor-advisoryx_refsource_UBUNTUThird Party Advisory
- https://usn.ubuntu.com/4286-2/ vendor-advisoryx_refsource_UBUNTUThird Party Advisory
- https://usn.ubuntu.com/4287-1/ vendor-advisoryx_refsource_UBUNTUThird Party Advisory
- https://usn.ubuntu.com/4287-2/ vendor-advisoryx_refsource_UBUNTUThird Party Advisory
- https://www.cve.org/CVERecord?id=CVE-2019-5108
- https://www.debian.org/security/2020/dsa-4698 vendor-advisoryx_refsource_DEBIANThird Party Advisory
- https://www.oracle.com/security-alerts/cpuApr2021.html x_refsource_MISCPatchThird Party Advisory
Change history (0)
No recorded changes yet.