CVE-2019-18805
kernel: integer overflow in tcp_ack_update_rtt in net/ipv4/tcp_input.c
Severity Score
9.8
*CVSS v3.1
Exploit Likelihood
*EPSS
Affected Versions
*CPE
Public Exploits
0
*Multiple Sources
Exploited in Wild
-
*KEV
Decision
-
*SSVC
Descriptions
An issue was discovered in net/ipv4/sysctl_net_ipv4.c in the Linux kernel before 5.0.11. There is a net/ipv4/tcp_input.c signed integer overflow in tcp_ack_update_rtt() when userspace writes a very large integer to /proc/sys/net/ipv4/tcp_min_rtt_wlen, leading to a denial of service or possibly unspecified other impact, aka CID-19fad20d15a6.
Se detectó un problema en el archivo net/ipv4/sysctl_net_ipv4.c en el kernel de Linux versiones anteriores a 5.0.11. Se presenta un desbordamiento de enteros firmado del archivo net/ipv4/tcp_input.c en la función tcp_ack_update_rtt() cuando el espacio de usuario escribe un entero muy grande en /proc/sys/net/ipv4/tcp_min_rtt_wlen, lo que conlleva a una denegación de servicio o posiblemente a otro impacto no especificado, también se conoce como CID -19fad20d15a6.
A flaw was reported in the Linux kernel's TCP subsystem while calculating a packet round trip time, when a sysctl parameter (/proc/sys/net/ipv4/tcp_min_rtt_wlen) is set incorrectly. This causes an integer overflow which can lead to a denial Of service (DOS) attack.
*Credits:
N/A
CVSS Scores
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
Attack Vector
Attack Complexity
Authentication
Confidentiality
Integrity
Availability
* Common Vulnerability Scoring System
SSVC
- Decision:-
Exploitation
Automatable
Tech. Impact
* Organization's Worst-case Scenario
Timeline
- 2019-11-07 CVE Reserved
- 2019-11-07 CVE Published
- 2024-08-05 CVE Updated
- 2024-10-31 EPSS Updated
- ---------- Exploited in Wild
- ---------- KEV Due Date
- ---------- First Exploit
CWE
- CWE-190: Integer Overflow or Wraparound
CAPEC
References (8)
| URL | Tag | Source |
|---|---|---|
| https://security.netapp.com/advisory/ntap-20191205-0001 | Third Party Advisory |
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| URL | Date | SRC |
|---|
Affected Vendors, Products, and Versions
| Vendor | Product | Version | Other | Status | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Vendor | Product | Version | Other | Status | <-- --> | Vendor | Product | Version | Other | Status |
| Netapp Search vendor "Netapp" | Aff A700s Firmware Search vendor "Netapp" for product "Aff A700s Firmware" | - | - |
Affected
| in | Netapp Search vendor "Netapp" | Aff A700s Search vendor "Netapp" for product "Aff A700s" | - | - |
Safe
|
| Netapp Search vendor "Netapp" | Fas8300 Firmware Search vendor "Netapp" for product "Fas8300 Firmware" | - | - |
Affected
| in | Netapp Search vendor "Netapp" | Fas8300 Search vendor "Netapp" for product "Fas8300" | - | - |
Safe
|
| Netapp Search vendor "Netapp" | Fas8700 Firmware Search vendor "Netapp" for product "Fas8700 Firmware" | - | - |
Affected
| in | Netapp Search vendor "Netapp" | Fas8700 Search vendor "Netapp" for product "Fas8700" | - | - |
Safe
|
| Netapp Search vendor "Netapp" | Aff A400 Firmware Search vendor "Netapp" for product "Aff A400 Firmware" | - | - |
Affected
| in | Netapp Search vendor "Netapp" | Aff A400 Search vendor "Netapp" for product "Aff A400" | - | - |
Safe
|
| Netapp Search vendor "Netapp" | H610s Firmware Search vendor "Netapp" for product "H610s Firmware" | - | - |
Affected
| in | Netapp Search vendor "Netapp" | H610s Search vendor "Netapp" for product "H610s" | - | - |
Safe
|
| Linux Search vendor "Linux" | Linux Kernel Search vendor "Linux" for product "Linux Kernel" | >= 4.4 < 4.4.180 Search vendor "Linux" for product "Linux Kernel" and version " >= 4.4 < 4.4.180" | - |
Affected
| ||||||
| Linux Search vendor "Linux" | Linux Kernel Search vendor "Linux" for product "Linux Kernel" | >= 4.9 < 4.9.172 Search vendor "Linux" for product "Linux Kernel" and version " >= 4.9 < 4.9.172" | - |
Affected
| ||||||
| Linux Search vendor "Linux" | Linux Kernel Search vendor "Linux" for product "Linux Kernel" | >= 4.14 < 4.14.115 Search vendor "Linux" for product "Linux Kernel" and version " >= 4.14 < 4.14.115" | - |
Affected
| ||||||
| Linux Search vendor "Linux" | Linux Kernel Search vendor "Linux" for product "Linux Kernel" | >= 4.19 < 4.19.38 Search vendor "Linux" for product "Linux Kernel" and version " >= 4.19 < 4.19.38" | - |
Affected
| ||||||
| Linux Search vendor "Linux" | Linux Kernel Search vendor "Linux" for product "Linux Kernel" | >= 5.0 < 5.0.11 Search vendor "Linux" for product "Linux Kernel" and version " >= 5.0 < 5.0.11" | - |
Affected
| ||||||
| Linux Search vendor "Linux" | Linux Kernel Search vendor "Linux" for product "Linux Kernel" | 5.1 Search vendor "Linux" for product "Linux Kernel" and version "5.1" | rc1 |
Affected
| ||||||
| Linux Search vendor "Linux" | Linux Kernel Search vendor "Linux" for product "Linux Kernel" | 5.1 Search vendor "Linux" for product "Linux Kernel" and version "5.1" | rc2 |
Affected
| ||||||
| Linux Search vendor "Linux" | Linux Kernel Search vendor "Linux" for product "Linux Kernel" | 5.1 Search vendor "Linux" for product "Linux Kernel" and version "5.1" | rc3 |
Affected
| ||||||
| Linux Search vendor "Linux" | Linux Kernel Search vendor "Linux" for product "Linux Kernel" | 5.1 Search vendor "Linux" for product "Linux Kernel" and version "5.1" | rc4 |
Affected
| ||||||
| Linux Search vendor "Linux" | Linux Kernel Search vendor "Linux" for product "Linux Kernel" | 5.1 Search vendor "Linux" for product "Linux Kernel" and version "5.1" | rc5 |
Affected
| ||||||
| Linux Search vendor "Linux" | Linux Kernel Search vendor "Linux" for product "Linux Kernel" | 5.1 Search vendor "Linux" for product "Linux Kernel" and version "5.1" | rc6 |
Affected
| ||||||
| Linux Search vendor "Linux" | Linux Kernel Search vendor "Linux" for product "Linux Kernel" | 5.1 Search vendor "Linux" for product "Linux Kernel" and version "5.1" | rc7 |
Affected
| ||||||
| Opensuse Search vendor "Opensuse" | Leap Search vendor "Opensuse" for product "Leap" | 15.0 Search vendor "Opensuse" for product "Leap" and version "15.0" | - |
Affected
| ||||||
| Opensuse Search vendor "Opensuse" | Leap Search vendor "Opensuse" for product "Leap" | 15.1 Search vendor "Opensuse" for product "Leap" and version "15.1" | - |
Affected
| ||||||
| Redhat Search vendor "Redhat" | Enterprise Linux Search vendor "Redhat" for product "Enterprise Linux" | 7.0 Search vendor "Redhat" for product "Enterprise Linux" and version "7.0" | - |
Affected
| ||||||
| Netapp Search vendor "Netapp" | Active Iq Unified Manager Search vendor "Netapp" for product "Active Iq Unified Manager" | - | vmware_vsphere |
Affected
| ||||||
| Netapp Search vendor "Netapp" | Data Availability Services Search vendor "Netapp" for product "Data Availability Services" | - | - |
Affected
| ||||||
| Netapp Search vendor "Netapp" | E-series Santricity Os Controller Search vendor "Netapp" for product "E-series Santricity Os Controller" | >= 11.0.0 <= 11.60.3 Search vendor "Netapp" for product "E-series Santricity Os Controller" and version " >= 11.0.0 <= 11.60.3" | - |
Affected
| ||||||
| Netapp Search vendor "Netapp" | Hci Management Node Search vendor "Netapp" for product "Hci Management Node" | - | - |
Affected
| ||||||
| Netapp Search vendor "Netapp" | Solidfire Search vendor "Netapp" for product "Solidfire" | - | - |
Affected
| ||||||
| Netapp Search vendor "Netapp" | Steelstore Cloud Integrated Storage Search vendor "Netapp" for product "Steelstore Cloud Integrated Storage" | - | - |
Affected
| ||||||
| Netapp Search vendor "Netapp" | Hci Compute Node Search vendor "Netapp" for product "Hci Compute Node" | - | - |
Affected
| ||||||
| Netapp Search vendor "Netapp" | Hci Storage Node Search vendor "Netapp" for product "Hci Storage Node" | - | - |
Affected
| ||||||
| Broadcom Search vendor "Broadcom" | Fabric Operating System Search vendor "Broadcom" for product "Fabric Operating System" | - | - |
Affected
| ||||||