CVE-2019-19043
A memory leak in the i40e_setup_macvlans() function in drivers/net/ethernet/intel/i40e/i40e_main...
A memory leak in the i40e_setup_macvlans() function in drivers/net/ethernet/intel/i40e/i40e_main.c in the Linux kernel through 5.3.11 allows attackers to cause a denial of service (memory consumption) by triggering i40e_setup_channel() failures, aka CID-27d461333459.
Attack profile
How easy it is to exploit
- Attack vector
- Local
- Complexity
- Low
- Privileges needed
- Low
- User interaction
- None
What an attacker can affect
- Confidentiality
- None
- Integrity
- None
- Availability
- High
Exploit likelihood
What each source reports
NVD Score used
5.5
A memory leak in the i40e_setup_macvlans() function in drivers/net/ethernet/intel/i40e/i40e_main.c in the Linux kernel through 5.3.11 allows attackers to cause a denial of service (memory consumption) by triggering i40e_setup_channel() failures, aka CID-27d461333459.
- Record
CVE-2019-19043- CVSS 3.1
- 5.5 Medium
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H - CVSS 2.0
- 4.9 Medium
AV:L/AC:L/Au:N/C:N/I:N/A:C - Weakness
- CWE-401
- Updated
- 2026-11-02
CVE List No score
A memory leak in the i40e_setup_macvlans() function in drivers/net/ethernet/intel/i40e/i40e_main.c in the Linux kernel through 5.3.11 allows attackers to cause a denial of service (memory consumption) by triggering i40e_setup_channel() failures, aka CID-27d461333459.
- Record
CVE-2019-19043- Updated
- 2026-11-02
EUVDEUVD-2019-8682 No score
A memory leak in the i40e_setup_macvlans() function in drivers/net/ethernet/intel/i40e/i40e_main.c in the Linux kernel through 5.3.11 allows attackers to cause a denial of service (memory consumption) by triggering i40e_setup_channel() failures, aka CID-27d461333459.
- Record
EUVD-2019-8682- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-576g-7959-7vh3 No score
A memory leak in the i40e_setup_macvlans() function in drivers/net/ethernet/intel/i40e/i40e_main...
A memory leak in the i40e_setup_macvlans() function in drivers/net/ethernet/intel/i40e/i40e_main.c in the Linux kernel through 5.3.11 allows attackers to cause a denial of service (memory consumption) by triggering i40e_setup_channel() failures, aka CID-27d461333459.
- Record
GHSA-576g-7959-7vh3- Updated
- 2026-11-02
OSVBELL-CVE-2019-19043
5.5
CVE-2019-19043 does not affect BellSoft software
- Record
BELL-CVE-2019-19043- CVSS 3.1
- 5.5 Medium
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H - Updated
- 2026-11-02
OSV
5.5
A memory leak in the i40e_setup_macvlans() function in drivers/net/ethernet/intel/i40e/i40e_main.c in the Linux kernel through 5.3.11 allows attackers to cause a denial of service (memory consumption) by triggering i40e_setup_channel() failures, aka CID-27d461333459.
- Record
CVE-2019-19043- CVSS 3.1
- 5.5 Medium
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H - Updated
- 2026-11-02
OSVDEBIAN-CVE-2019-19043
5.5
A memory leak in the i40e_setup_macvlans() function in drivers/net/ethernet/intel/i40e/i40e_main.c in the Linux kernel through 5.3.11 allows attackers to cause a denial of service (memory consumption) by triggering i40e_setup_channel() failures, aka CID-27d461333459.
- Record
DEBIAN-CVE-2019-19043- CVSS 3.1
- 5.5 Medium
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H - Updated
- 2026-11-02
OSVUBUNTU-CVE-2019-19043
5.5
A memory leak in the i40e_setup_macvlans() function in drivers/net/ethernet/intel/i40e/i40e_main.c in the Linux kernel through 5.3.11 allows attackers to cause a denial of service (memory consumption) by triggering i40e_setup_channel() failures, aka CID-27d461333459.
- Record
UBUNTU-CVE-2019-19043- CVSS 3.1
- 5.5 Medium
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H - Updated
- 2026-11-02
OSVUSN-4300-1 No score
linux, linux-aws, linux-gcp, linux-gcp-5.3, linux-gke-5.3, linux-hwe, linux-kvm, linux-oracle, linux-raspi2, linux-raspi2-5.3, linux-azure, linux-azure-5.3 vulnerabilities
It was discovered that the KVM implementation in the Linux kernel, when paravirtual TLB flushes are enabled in guests, the hypervisor in some situations could miss deferred TLB flushes or otherwise mishandle them. An attacker in a guest VM could use this to expose sensitive information (read memory from another guest VM). (CVE-2019-3016)
Paulo Bonzini discovered that the KVM hypervisor implementation in the Linux kernel could improperly let a nested (level 2) guest access the resources of a parent (level 1) guest in certain situations. An attacker could use this to expose sensitive information. (CVE-2020-2732)
It was discovered that the Afatech AF9005 DVB-T USB device driver in the Linux kernel did not properly deallocate memory in certain error conditions. A local attacker could possibly use this to cause a denial of service (kernel memory exhaustion). (CVE-2019-18809)
It was discovered that the Intel(R) XL710 Ethernet Controller device driver in the Linux kernel did not properly deallocate memory in certain error conditions. A local attacker could possibly use this to cause a denial of service (kernel memory exhaustion). (CVE-2019-19043)
It was discovered that the RPMSG character device interface in the Linux kernel did not properly deallocate memory in certain error conditions. A local attacker could possibly use this to cause a denial of service (kernel memory exhaustion). (CVE-2019-19053)
It was discovered that the Marvell Wi-Fi device driver in the Linux kernel did not properly deallocate memory in certain error conditions. A local attacker could use this to possibly cause a denial of service (kernel memory exhaustion). (CVE-2019-19056)
It was discovered that the Intel(R) Wi-Fi device driver in the Linux kernel device driver in the Linux kernel did not properly deallocate memory in certain error conditions. A local attacker could possibly use this to cause a denial of service (kernel memory exhaustion). (CVE-2019-19058, CVE-2019-19059)
It was discovered that the Serial Peripheral Interface (SPI) driver in the Linux kernel device driver in the Linux kernel did not properly deallocate memory in certain error conditions. A local attacker could possibly use this to cause a denial of service (kernel memory exhaustion). (CVE-2019-19064)
It was discovered that the Brocade BFA Fibre Channel device driver in the Linux kernel did not properly deallocate memory in certain error conditions. A local attacker could possibly use this to cause a denial of service (kernel memory exhaustion). (CVE-2019-19066)
It was discovered that the Realtek RTL8xxx USB Wi-Fi device driver in the Linux kernel did not properly deallocate memory in certain error conditions. A local attacker could possibly use this to cause a denial of service (kernel memory exhaustion). (CVE-2019-19068)
- Record
USN-4300-1- Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
linuxDebian:12 |
before 5.4.19-1 | 5.4.19-1 |
linuxDebian:13 |
before 5.4.19-1 | 5.4.19-1 |
linuxDebian:14 |
before 5.4.19-1 | 5.4.19-1 |
linux-hwe-edgeUbuntu:16.04:LTS |
All versions, plus listed versions 4.8.0-28.30~16.04.14.8.0-30.32~16.04.14.8.0-32.34~16.04.14.8.0-34.36~16.04.14.10.0-14.16~16.04.1 Show 18 moreShow less4.10.0-19.21~16.04.14.10.0-20.22~16.04.14.10.0-21.23~16.04.14.10.0-22.24~16.04.14.10.0-24.28~16.04.14.10.0-26.30~16.04.14.11.0-13.19~16.04.14.11.0-14.20~16.04.14.13.0-16.19~16.04.34.13.0-17.20~16.04.14.13.0-19.22~16.04.14.13.0-21.24~16.04.14.13.0-25.29~16.04.24.15.0-13.14~16.04.14.15.0-15.16~16.04.14.15.0-20.21~16.04.14.15.0-22.24~16.04.14.15.0-23.25~16.04.1 |
None known |
linux-azure-5.3Ubuntu:18.04:LTS |
before 5.3.0-1016.17~18.04.1, plus listed versions 5.3.0-1007.8~18.04.15.3.0-1008.9~18.04.15.3.0-1009.10~18.04.15.3.0-1010.11~18.04.15.3.0-1012.13~18.04.15.3.0-1013.14~18.04.1 |
5.3.0-1016.17~18.04.1 |
linux-gcp-5.3Ubuntu:18.04:LTS |
before 5.3.0-1014.15~18.04.1, plus listed versions 5.3.0-1008.9~18.04.15.3.0-1009.10~18.04.15.3.0-1010.11~18.04.15.3.0-1012.13~18.04.1 |
5.3.0-1014.15~18.04.1 |
linux-gke-5.3Ubuntu:18.04:LTS |
before 5.3.0-1014.15~18.04.1, plus listed versions 5.3.0-1011.12~18.04.15.3.0-1012.13~18.04.1 |
5.3.0-1014.15~18.04.1 |
linux-hweUbuntu:18.04:LTS |
before 5.3.0-42.34~18.04.1, plus listed versions 4.18.0-13.14~18.04.14.18.0-14.15~18.04.14.18.0-15.16~18.04.14.18.0-16.17~18.04.14.18.0-17.18~18.04.1 Show 18 moreShow less4.18.0-18.19~18.04.14.18.0-20.21~18.04.14.18.0-21.22~18.04.14.18.0-22.23~18.04.14.18.0-24.25~18.04.14.18.0-25.26~18.04.15.0.0-23.24~18.04.15.0.0-25.26~18.04.15.0.0-27.28~18.04.15.0.0-29.31~18.04.15.0.0-31.33~18.04.15.0.0-32.34~18.04.25.0.0-35.38~18.04.15.0.0-36.39~18.04.15.0.0-37.40~18.04.15.3.0-26.28~18.04.15.3.0-28.30~18.04.15.3.0-40.32~18.04.1 |
5.3.0-42.34~18.04.1 |
linux-raspi2-5.3Ubuntu:18.04:LTS |
before 5.3.0-1019.21~18.04.1, plus listed versions 5.3.0-1017.19~18.04.15.3.0-1018.20~18.04.1 |
5.3.0-1019.21~18.04.1 |
linux-azure-edgeUbuntu:18.04:LTS |
All versions, plus listed versions 4.18.0-1006.6~18.04.14.18.0-1007.7~18.04.14.18.0-1008.8~18.04.15.0.0-1012.12~18.04.2 |
None known |
Show 17 moreShow less
| Package | Affected | Fixed |
|---|---|---|
linux-gcp-edgeUbuntu:18.04:LTS |
All versions, plus listed versions 4.18.0-1004.5~18.04.14.18.0-1005.6~18.04.14.18.0-1006.7~18.04.14.18.0-1007.8~18.04.14.18.0-1008.9~18.04.1 Show 7 moreShow less4.18.0-1009.10~18.04.14.18.0-1011.12~18.04.14.18.0-1012.13~18.04.14.18.0-1013.14~18.04.14.18.0-1015.16~18.04.15.0.0-1011.11~18.04.15.0.0-1013.13~18.04.1 |
None known |
linux-hwe-edgeUbuntu:18.04:LTS |
All versions, plus listed versions 5.0.0-15.16~18.04.15.0.0-16.17~18.04.15.0.0-17.18~18.04.15.0.0-19.20~18.04.15.0.0-20.21~18.04.1 Show 5 moreShow less5.3.0-19.20~18.04.25.3.0-22.24~18.04.15.3.0-23.25~18.04.15.3.0-23.25~18.04.25.3.0-24.26~18.04.2 |
None known |
linux-azure-fdeUbuntu:20.04:LTS |
All versions, plus listed versions 5.4.0-1063.66+cvm2.25.4.0-1063.66+cvm3.25.4.0-1064.67+cvm1.15.4.0-1065.68+cvm2.15.4.0-1067.70+cvm1.1 Show 21 moreShow less5.4.0-1068.71+cvm1.15.4.0-1069.72+cvm1.15.4.0-1070.73+cvm1.15.4.0-1072.75+cvm1.15.4.0-1073.76+cvm1.15.4.0-1074.77+cvm1.15.4.0-1076.79+cvm1.15.4.0-1078.81+cvm1.15.4.0-1080.83+cvm1.15.4.0-1083.87+cvm1.15.4.0-1085.90+cvm1.15.4.0-1085.90+cvm2.15.4.0-1086.91+cvm1.15.4.0-1089.94+cvm1.25.4.0-1090.95+cvm1.15.4.0-1091.96+cvm1.15.4.0-1092.97+cvm1.15.4.0-1095.101+cvm1.15.4.0-1098.104+cvm1.15.4.0-1100.106+cvm1.15.4.0-1103.109+cvm1.1 |
None known |
linux-gkeUbuntu:20.04:LTS |
All versions, plus listed versions 5.4.0-1033.355.4.0-1035.375.4.0-1036.385.4.0-1037.395.4.0-1039.41 Show 45 moreShow less5.4.0-1041.435.4.0-1042.445.4.0-1043.455.4.0-1044.465.4.0-1046.485.4.0-1049.525.4.0-1051.545.4.0-1052.555.4.0-1053.565.4.0-1054.575.4.0-1055.585.4.0-1056.595.4.0-1057.605.4.0-1059.625.4.0-1061.645.4.0-1062.655.4.0-1063.665.4.0-1065.685.4.0-1066.695.4.0-1067.705.4.0-1068.715.4.0-1071.765.4.0-1072.775.4.0-1074.795.4.0-1076.825.4.0-1078.845.4.0-1080.865.4.0-1081.875.4.0-1083.895.4.0-1084.905.4.0-1086.935.4.0-1087.945.4.0-1090.975.4.0-1091.985.4.0-1094.1015.4.0-1095.1025.4.0-1096.1035.4.0-1097.1045.4.0-1098.1055.4.0-1099.1065.4.0-1100.1075.4.0-1101.1085.4.0-1102.1095.4.0-1103.1105.4.0-1104.111 |
None known |
linux-gkeopUbuntu:20.04:LTS |
All versions, plus listed versions 5.4.0-1008.95.4.0-1009.105.4.0-1010.115.4.0-1011.125.4.0-1012.13 Show 45 moreShow less5.4.0-1013.145.4.0-1014.155.4.0-1015.165.4.0-1016.175.4.0-1018.195.4.0-1021.225.4.0-1022.235.4.0-1023.245.4.0-1024.255.4.0-1025.265.4.0-1026.275.4.0-1027.285.4.0-1029.305.4.0-1031.325.4.0-1032.335.4.0-1033.345.4.0-1034.355.4.0-1036.375.4.0-1037.385.4.0-1038.395.4.0-1039.405.4.0-1040.415.4.0-1043.445.4.0-1046.485.4.0-1048.515.4.0-1049.525.4.0-1051.545.4.0-1052.555.4.0-1053.565.4.0-1054.575.4.0-1056.605.4.0-1057.615.4.0-1060.645.4.0-1061.655.4.0-1062.665.4.0-1064.685.4.0-1065.695.4.0-1066.705.4.0-1067.715.4.0-1068.725.4.0-1069.735.4.0-1070.745.4.0-1071.755.4.0-1072.765.4.0-1073.77 |
None known |
linux-gkeop-5.15Ubuntu:20.04:LTS |
All versions, plus listed versions 5.15.0-1003.5~20.04.25.15.0-1005.7~20.04.15.15.0-1007.10~20.04.15.15.0-1008.12~20.04.15.15.0-1011.15~20.04.2 Show 40 moreShow less5.15.0-1012.16~20.04.15.15.0-1013.17~20.04.15.15.0-1015.19~20.04.15.15.0-1016.21~20.04.15.15.0-1017.22~20.04.15.15.0-1018.23~20.04.15.15.0-1019.24~20.04.15.15.0-1020.25~20.04.15.15.0-1021.26~20.04.15.15.0-1022.27~20.04.15.15.0-1023.28~20.04.15.15.0-1024.29~20.04.15.15.0-1025.30~20.04.15.15.0-1026.31~20.04.15.15.0-1027.32~20.04.15.15.0-1028.33~20.04.15.15.0-1030.35~20.04.15.15.0-1031.37~20.04.15.15.0-1032.38~20.04.15.15.0-1033.39~20.04.15.15.0-1034.40~20.04.15.15.0-1035.41~20.04.15.15.0-1036.42~20.04.15.15.0-1037.43~20.04.15.15.0-1038.44~20.04.15.15.0-1039.45~20.04.15.15.0-1040.46~20.04.15.15.0-1043.50~20.04.15.15.0-1044.51~20.04.15.15.0-1045.52~20.04.15.15.0-1046.53~20.04.15.15.0-1047.54~20.04.15.15.0-1048.55~20.04.15.15.0-1049.56~20.04.15.15.0-1050.57~20.04.15.15.0-1051.58~20.04.15.15.0-1052.59~20.04.15.15.0-1053.60~20.04.15.15.0-1054.61~20.04.15.15.0-1055.62~20.04.1 |
None known |
linux-raspi2Ubuntu:20.04:LTS |
All versions, plus listed versions 5.3.0-1007.85.3.0-1014.165.3.0-1015.175.3.0-1017.195.4.0-1004.45.4.0-1006.6 |
None known |
linux-riscvUbuntu:20.04:LTS |
All versions, plus listed versions 5.4.0-24.285.4.0-26.305.4.0-27.315.4.0-28.325.4.0-30.34 Show 7 moreShow less5.4.0-31.355.4.0-33.375.4.0-34.385.4.0-36.415.4.0-37.425.4.0-39.445.4.0-40.45 |
None known |
linux-intel-iot-realtimeUbuntu:22.04:LTS |
All versions, plus listed versions 5.15.0-1073.75 |
None known |
linux-realtimeUbuntu:22.04:LTS |
All versions, plus listed versions 5.15.0-1032.35 |
None known |
linux-riscvUbuntu:22.04:LTS |
All versions, plus listed versions 5.13.0-1004.45.13.0-1006.6+22.04.15.13.0-1007.7+22.04.15.13.0-1010.11+22.04.15.15.0-1004.4 Show 18 moreShow less5.15.0-1005.55.15.0-1006.65.15.0-1007.75.15.0-1008.85.15.0-1011.125.15.0-1012.135.15.0-1014.165.15.0-1015.175.15.0-1016.185.15.0-1017.195.15.0-1018.215.15.0-1019.225.15.0-1020.235.15.0-1022.265.15.0-1023.275.15.0-1026.305.15.0-1027.315.15.0-1028.32 |
None known |
linux-raspi-realtimeUbuntu:24.04:LTS |
All versions, plus listed versions 6.8.0-2019.20 |
None known |
linux-azure-5.3Ubuntu:18.04:LTS From an advisory covering 11 CVEs |
before 5.3.0-1016.17~18.04.1, plus listed versions 5.3.0-1007.8~18.04.15.3.0-1008.9~18.04.15.3.0-1009.10~18.04.15.3.0-1010.11~18.04.15.3.0-1012.13~18.04.15.3.0-1013.14~18.04.1 |
5.3.0-1016.17~18.04.1 |
linux-gcp-5.3Ubuntu:18.04:LTS From an advisory covering 11 CVEs |
before 5.3.0-1014.15~18.04.1, plus listed versions 5.3.0-1008.9~18.04.15.3.0-1009.10~18.04.15.3.0-1010.11~18.04.15.3.0-1012.13~18.04.1 |
5.3.0-1014.15~18.04.1 |
linux-gke-5.3Ubuntu:18.04:LTS From an advisory covering 11 CVEs |
before 5.3.0-1014.15~18.04.1, plus listed versions 5.3.0-1011.12~18.04.15.3.0-1012.13~18.04.1 |
5.3.0-1014.15~18.04.1 |
linux-hweUbuntu:18.04:LTS From an advisory covering 11 CVEs |
before 5.3.0-42.34~18.04.1, plus listed versions 4.18.0-13.14~18.04.14.18.0-14.15~18.04.14.18.0-15.16~18.04.14.18.0-16.17~18.04.14.18.0-17.18~18.04.1 Show 18 moreShow less4.18.0-18.19~18.04.14.18.0-20.21~18.04.14.18.0-21.22~18.04.14.18.0-22.23~18.04.14.18.0-24.25~18.04.14.18.0-25.26~18.04.15.0.0-23.24~18.04.15.0.0-25.26~18.04.15.0.0-27.28~18.04.15.0.0-29.31~18.04.15.0.0-31.33~18.04.15.0.0-32.34~18.04.25.0.0-35.38~18.04.15.0.0-36.39~18.04.15.0.0-37.40~18.04.15.3.0-26.28~18.04.15.3.0-28.30~18.04.15.3.0-40.32~18.04.1 |
5.3.0-42.34~18.04.1 |
linux-raspi2-5.3Ubuntu:18.04:LTS From an advisory covering 11 CVEs |
before 5.3.0-1019.21~18.04.1, plus listed versions 5.3.0-1017.19~18.04.15.3.0-1018.20~18.04.1 |
5.3.0-1019.21~18.04.1 |
History
| Recorded | Changed | Sources |
|---|---|---|
| affected, facts | ||
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2019-19043 is a medium vulnerability (CVSS 5.5) in Linux Kernel, published November 18, 2019. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.41%, the 35th percentile. Fixed in linux 5.4.19-1.
References
github.com/torvalds/linux/commit/27d461333459d282ffa4a2bdb6b215a59d493a8f
lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/O3PSDE6PTOTVBK2YTKB2TFQP2SUBVSNF
lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/PY7LJMSPAGRIKABJPDKQDTXYW3L5RX2T
security.netapp.com/advisory/ntap-20191205-0001
usn.ubuntu.com/4300-1
nvd.nist.gov/vuln/detail/CVE-2019-19043
Show 18 moreShow less
lists.fedoraproject.org/archives/list/[email protected]/message/O3PSDE6PTOTVBK2YTKB2TFQP2SUBVSNF
lists.fedoraproject.org/archives/list/[email protected]/message/PY7LJMSPAGRIKABJPDKQDTXYW3L5RX2T
github.com/advisories/GHSA-576g-7959-7vh3
docs.bell-sw.com/security/cves/CVE-2019-19043
security-tracker.debian.org/tracker/CVE-2019-19043
ubuntu.com/security/CVE-2019-19043
ubuntu.com/security/notices/USN-4300-1
cve.org/CVERecord?id=CVE-2019-19043
ubuntu.com/security/CVE-2019-3016
ubuntu.com/security/CVE-2019-18809
ubuntu.com/security/CVE-2019-19053
ubuntu.com/security/CVE-2019-19056
ubuntu.com/security/CVE-2019-19058
ubuntu.com/security/CVE-2019-19059
ubuntu.com/security/CVE-2019-19064
ubuntu.com/security/CVE-2019-19066
ubuntu.com/security/CVE-2019-19068
ubuntu.com/security/CVE-2020-2732
Left out here: 29 versions. The JSON record has them.