kernel: memory leak in af9005_identify_state() function in drivers/media/usb/dvb-usb/af9005.c
Published Nov 7, 2019
4.6
MEDIUMCVSS 3.1
EPSS 0.49%
Description
A memory leak in the af9005_identify_state() function in drivers/media/usb/dvb-usb/af9005.c in the Linux kernel through 5.3.9 allows attackers to cause a denial of service (memory consumption), aka CID-2289adbfa559.
Affected products
No data.
Configuration 1
- ≤ 5.3.9
Configuration 2
- 14.04
- 16.04
- 18.04
- 19.10
- 8.0
- 30
- 31
- 15.1
No data.
Red Hat Enterprise Linux 8
kernel-0:4.18.0-240.el8
Fixed · RHSA-2020:4431
Red Hat Enterprise Linux 8
kernel-rt-0:4.18.0-240.rt7.54.el8
Fixed · RHSA-2020:4609
Red Hat Enterprise Linux 5
kernel
Not affected
Red Hat Enterprise Linux 6
kernel
Not affected
Red Hat Enterprise Linux 7
kernel
Not affected
Red Hat Enterprise Linux 7
kernel-alt
Fix deferred
Red Hat Enterprise Linux 7
kernel-rt
Not affected
Red Hat Enterprise MRG 2
kernel
Not affected
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 8 | kernel-0:4.18.0-240.el8 | Fixed | RHSA-2020:4431 |
| Red Hat Enterprise Linux 8 | kernel-rt-0:4.18.0-240.rt7.54.el8 | Fixed | RHSA-2020:4609 |
| Red Hat Enterprise Linux 5 | kernel | Not affected | n/a |
| Red Hat Enterprise Linux 6 | kernel | Not affected | n/a |
| Red Hat Enterprise Linux 7 | kernel | Not affected | n/a |
| Red Hat Enterprise Linux 7 | kernel-alt | Fix deferred | n/a |
| Red Hat Enterprise Linux 7 | kernel-rt | Not affected | n/a |
| Red Hat Enterprise MRG 2 | kernel | Not affected | n/a |
No package ranges for this CVE.
Remediation
Red Hat mitigation
In order to mitigate this issue it is possible to prevent the affected code from being loaded by blacklisting the kernel module dvb-usb-af9005. For instructions relating to how to blacklist a kernel module refer to: https://access.redhat.com/solutions/41278
Metrics
No CVSS v4.0 score for this CVE.
CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
No CVSS v3.0 score for this CVE.
AV:L/AC:L/Au:N/C:N/I:N/A:C
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 1, 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 (17 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 0.49% (0.00486) | 39.56th | v5 (v2026.06.15) |
| Jun 15, 2026 | 0.49% (0.00486) | 37.81th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.09% (0.00091) | 23.77th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.40% (0.00400) | 74.42th | v3 (v2023.03.01) |
| Apr 11, 2024 | 0.25% (0.00254) | 64.92th | v3 (v2023.03.01) |
| Nov 8, 2023 | 0.25% (0.00253) | 62.91th | v3 (v2023.03.01) |
| Oct 14, 2023 | 0.29% (0.00287) | 65.19th | v3 (v2023.03.01) |
| Sep 11, 2023 | 0.25% (0.00251) | 62.32th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.26% (0.00259) | 61.80th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.54% (0.01537) | 74.52th | v2 (v2022.01.01) |
| Feb 23, 2023 | 1.54% (0.01537) | 74.48th | v2 (v2022.01.01) |
| Apr 1, 2022 | 1.54% (0.01537) | 72.41th | v2 (v2022.01.01) |
| Feb 4, 2022 | 5.13% (0.05132) | 75.07th | v2 (v2022.01.01) |
| Feb 3, 2022 | 11.51% (0.11512) | 88.34th | v1 |
| Jan 6, 2022 | 11.51% (0.11512) | 88.20th | v1 |
| Sep 1, 2021 | 2.82% (0.02818) | 80.51th | v1 |
| Apr 14, 2021 | 2.82% (0.02818) | 0.00th | v1 |
References (14)
- http://lists.opensuse.org/opensuse-security-announce/2019-12/msg00029.html vendor-advisoryx_refsource_SUSEThird Party Advisory
- https://access.redhat.com/security/cve/CVE-2019-18809 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1777449 Issue Tracking
- https://github.com/torvalds/linux/commit/2289adbfa559050d2a38bcd9caac1c18b800e928 x_refsource_MISCPatchThird Party Advisory
- https://lists.debian.org/debian-lts-announce/2020/03/msg00001.html mailing-listx_refsource_MLISTThird Party Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/LYIFGYEDQXP5DVJQQUARQRK2PXKBKQGY/ vendor-advisoryx_refsource_FEDORA
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/YWWOOJKZ4NQYN4RMFIVJ3ZIXKJJI3MKP/ vendor-advisoryx_refsource_FEDORA
- https://nvd.nist.gov/vuln/detail/CVE-2019-18809
- https://security.netapp.com/advisory/ntap-20191205-0001/ x_refsource_CONFIRMThird Party Advisory
- https://usn.ubuntu.com/4285-1/ 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://usn.ubuntu.com/4300-1/ vendor-advisoryx_refsource_UBUNTUThird Party Advisory
- https://www.cve.org/CVERecord?id=CVE-2019-18809
Change history (0)
No recorded changes yet.