Heap-based buffer overflow in Red Hat kernel
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Code execution, Denial of service
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- Partial Red Hat: 17 fixed, 1 without a fix
Attack profile from CVSS 3.1 · NVD. Fix status from CNA and Red Hat. Impact type from CWE-122, CWE-400 and the CVSS impact.
Summary
A heap overflow flaw was found in the Linux kernel, all versions 3.x.x and 4.x.x before 4.18.0, in Marvell WiFi chip driver. The vulnerability allows a remote attacker to cause a system crash, resulting in a denial of service, or execute arbitrary code. The highest threat with this vulnerability is with the availability of the system. If code execution occurs, the code will run with the permissions of root. This will affect both confidentiality and integrity of files on the system.
Why it matters now
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Red Hat | kernel | all kernel versions 3.x.x and 4.x.x before 4.18.0 | — | No fix listed | CNA |
- kernel VendorRed Hat Affected all kernel versions 3.x.x and 4.x.x before 4.18.0 Fixed in — No fix listed CNA
CPE configurations NVD · 8
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | 3.15 to before 3.16.83; 3.17 to before 4.4.217; 4.5 to before 4.9.217; 4.10 to before 4.14.164; 4.15 to before 4.19.95; 4.20 to before 5.4.11 | Vulnerable | Linux |
| cpe:2.3:o:fedoraproject:fedora:30:*:*:*:*:*:*:* | 30 | Vulnerable | Fedoraproject |
| cpe:2.3:o:fedoraproject:fedora:31:*:*:*:*:*:*:* | 31 | Vulnerable | Fedoraproject |
| cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:* | 8.0 | Vulnerable | Debian |
| cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:esm:*:*:* | 14.04 | Vulnerable | Canonical |
| cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:esm:*:*:* | 16.04 | Vulnerable | Canonical |
| cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:* | 18.04 | Vulnerable | Canonical |
| cpe:2.3:o:canonical:ubuntu_linux:19.10:*:*:*:*:*:*:* | 19.10 | Vulnerable | Canonical |
- cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* Versions 3.15 to before 3.16.83; 3.17 to before 4.4.217; 4.5 to before 4.9.217; 4.10 to before 4.14.164; 4.15 to before 4.19.95; 4.20 to before 5.4.11 Vulnerable ·Linux
- cpe:2.3:o:fedoraproject:fedora:30:*:*:*:*:*:*:* Versions 30 Vulnerable ·Fedoraproject
- cpe:2.3:o:fedoraproject:fedora:31:*:*:*:*:*:*:* Versions 31 Vulnerable ·Fedoraproject
- cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:* Versions 8.0 Vulnerable ·Debian
- cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:esm:*:*:* Versions 14.04 Vulnerable ·Canonical
- cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:esm:*:*:* Versions 16.04 Vulnerable ·Canonical
- cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:* Versions 18.04 Vulnerable ·Canonical
- cpe:2.3:o:canonical:ubuntu_linux:19.10:*:*:*:*:*:*:* Versions 19.10 Vulnerable ·Canonical
Remediation
Red Hat 6 advisories
- RHSA-2020:1493 Released 2020-04-16 · Red Hat rating Importantkernel-alt security and bug fix update
- Red Hat Enterprise Linux for ARM and IBM Power LE (POWER9) Server (v. 7) kernel-4.14.0-115.19.1.el7a, kernel-abi-whitelists-4.14.0-115.19.1.el7a, kernel-alt-4.14.0-115.19.1.el7a +8
- Red Hat Enterprise Linux for ARM and IBM Power LE (POWER9) Server Optional (v. 7) kernel-debug-devel-4.14.0-115.19.1.el7a, kernel-tools-libs-devel-4.14.0-115.19.1.el7a
- RHSA-2020:0374 Released 2020-02-04 · Red Hat rating Importantkernel security and bug fix update
- Red Hat Enterprise Linux Client (v. 7) bpftool-3.10.0-1062.12.1.el7, kernel-3.10.0-1062.12.1.el7, kernel-abi-whitelists-3.10.0-1062.12.1.el7 +8
- Red Hat Enterprise Linux Client Optional (v. 7) kernel-tools-libs-devel-3.10.0-1062.12.1.el7
- Red Hat Enterprise Linux ComputeNode (v. 7) bpftool-3.10.0-1062.12.1.el7, kernel-3.10.0-1062.12.1.el7, kernel-abi-whitelists-3.10.0-1062.12.1.el7 +8
- Red Hat Enterprise Linux ComputeNode Optional (v. 7) kernel-tools-libs-devel-3.10.0-1062.12.1.el7
- Red Hat Enterprise Linux Server (v. 7) bpftool-3.10.0-1062.12.1.el7, kernel-3.10.0-1062.12.1.el7, kernel-abi-whitelists-3.10.0-1062.12.1.el7 +11
- Red Hat Enterprise Linux Server Optional (v. 7) kernel-debug-devel-3.10.0-1062.12.1.el7, kernel-tools-libs-devel-3.10.0-1062.12.1.el7
- Red Hat Enterprise Linux Workstation (v. 7) bpftool-3.10.0-1062.12.1.el7, kernel-3.10.0-1062.12.1.el7, kernel-abi-whitelists-3.10.0-1062.12.1.el7 +8
- Red Hat Enterprise Linux Workstation Optional (v. 7) kernel-tools-libs-devel-3.10.0-1062.12.1.el7
- RHSA-2020:0375 Released 2020-02-04 · Red Hat rating Importantkernel-rt security and bug fix update
- Red Hat Enterprise Linux Realtime (v. 7) kernel-rt-3.10.0-1062.12.1.rt56.1042.el7, kernel-rt-debug-3.10.0-1062.12.1.rt56.1042.el7, kernel-rt-debug-devel-3.10.0-1062.12.1.rt56.1042.el7 +4
- Red Hat Enterprise Linux for Real Time for NFV (v. 7) kernel-rt-3.10.0-1062.12.1.rt56.1042.el7, kernel-rt-debug-3.10.0-1062.12.1.rt56.1042.el7, kernel-rt-debug-devel-3.10.0-1062.12.1.rt56.1042.el7 +7
Show 3 more Red Hat advisories
- RHSA-2020:0339 Released 2020-02-04 · Red Hat rating Importantkernel security and bug fix update
- Red Hat CodeReady Linux Builder (v. 8) kernel-tools-libs-devel-4.18.0-147.5.1.el8_1
- Red Hat Enterprise Linux BaseOS (v. 8) bpftool-4.18.0-147.5.1.el8_1, kernel-4.18.0-147.5.1.el8_1, kernel-abi-whitelists-4.18.0-147.5.1.el8_1 +19
- RHSA-2020:0328 Released 2020-02-04 · Red Hat rating Importantkernel-rt security and bug fix update
- Red Hat Enterprise Linux Real Time (v. 8) kernel-rt-4.18.0-147.5.1.rt24.98.el8_1, kernel-rt-core-4.18.0-147.5.1.rt24.98.el8_1, kernel-rt-debug-4.18.0-147.5.1.rt24.98.el8_1 +7
- Red Hat Enterprise Linux Real Time for NFV (v. 8) kernel-rt-4.18.0-147.5.1.rt24.98.el8_1, kernel-rt-core-4.18.0-147.5.1.rt24.98.el8_1, kernel-rt-debug-4.18.0-147.5.1.rt24.98.el8_1 +9
- RHSA-2020:0204 Released 2020-01-22 · Red Hat rating Importantkernel security and bug fix update
- Red Hat Enterprise Linux BaseOS E4S (v. 8.0) bpftool-4.18.0-80.15.1.el8_0, kernel-4.18.0-80.15.1.el8_0, kernel-abi-whitelists-4.18.0-80.15.1.el8_0 +14
Vendor assessments
Red Hat
Red Hat rating: Important. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat Enterprise MRG 2 | Affected | No fix yet |
| Red Hat CodeReady Linux Builder (v. 8) | Fixed | RHSA-2020:0339 |
| Red Hat Enterprise Linux BaseOS (v. 8) | Fixed | RHSA-2020:0339 |
| Red Hat Enterprise Linux BaseOS E4S (v. 8.0) | Fixed | RHSA-2020:0204 |
| Red Hat Enterprise Linux Client (v. 7) | Fixed | RHSA-2020:0374 |
| Red Hat Enterprise Linux Client Optional (v. 7) | Fixed | RHSA-2020:0374 |
| Red Hat Enterprise Linux ComputeNode (v. 7) | Fixed | RHSA-2020:0374 |
| Red Hat Enterprise Linux ComputeNode Optional (v. 7) | Fixed | RHSA-2020:0374 |
| Red Hat Enterprise Linux Real Time (v. 8) | Fixed | RHSA-2020:0328 |
| Red Hat Enterprise Linux Real Time for NFV (v. 8) | Fixed | RHSA-2020:0328 |
| Red Hat Enterprise Linux Realtime (v. 7) | Fixed | RHSA-2020:0375 |
| Red Hat Enterprise Linux Server (v. 7) | Fixed | RHSA-2020:0374 |
| Red Hat Enterprise Linux Server Optional (v. 7) | Fixed | RHSA-2020:0374 |
| Red Hat Enterprise Linux Workstation (v. 7) | Fixed | RHSA-2020:0374 |
| Red Hat Enterprise Linux Workstation Optional (v. 7) | Fixed | RHSA-2020:0374 |
| Red Hat Enterprise Linux for ARM and IBM Power LE (POWER9) Server (v. 7) | Fixed | RHSA-2020:1493 |
| Red Hat Enterprise Linux for ARM and IBM Power LE (POWER9) Server Optional (v. 7) | Fixed | RHSA-2020:1493 |
| Red Hat Enterprise Linux for Real Time for NFV (v. 7) | Fixed | RHSA-2020:0375 |
Not affected: 2 products
- Red Hat Enterprise Linux 5
- Red Hat Enterprise Linux 6
Timeline
- 2026-10-02 Threatist record created from CVE-2019-14901
- 2026-10-03 Alias added: GHSA-6mpr-24px-gq7m
References
Advisory 20
- https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-14901
- FEDORA-2019-91f6e7bb71
- FEDORA-2019-8846a1a5a2
- openSUSE-SU-2019:2675
- USN-4228-1
- USN-4227-1
- USN-4226-1
- USN-4225-1
- USN-4228-2
- USN-4227-2
- http://packetstormsecurity.com/files/155879/Kernel-Live-Patch-Security-Notice-LSN-0061-1.html
- [debian-lts-announce] 20200118 [SECURITY] [DLA 2068-1] linux security update
- USN-4225-2
- RHSA-2020:0204
- http://packetstormsecurity.com/files/156185/Kernel-Live-Patch-Security-Notice-LSN-0062-1.html
- RHSA-2020:0328
- RHSA-2020:0339
- RHSA-2020:0374
- RHSA-2020:0375
- [debian-lts-announce] 20200302 [SECURITY] [DLA 2114-1] linux-4.9 security update
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Sources
- CVE-2019-14901 · CVE Program
- CVE-2019-14901 · NVD
- FIRST EPSS
- GHSA-6mpr-24px-gq7m · GitHub Advisory Database · CC BY 4.0
- CVE-2019-14901 · Red Hat security data · CC BY 4.0
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