CVE-2020-14314
kernel: buffer uses out of index in ext3/4 filesystem
Severity Score
5.5
*CVSS v3.1
Exploit Likelihood
*EPSS
Affected Versions
*CPE
Public Exploits
0
*Multiple Sources
Exploited in Wild
-
*KEV
Decision
-
*SSVC
Descriptions
A memory out-of-bounds read flaw was found in the Linux kernel before 5.9-rc2 with the ext3/ext4 file system, in the way it accesses a directory with broken indexing. This flaw allows a local user to crash the system if the directory exists. The highest threat from this vulnerability is to system availability.
Se encontró un fallo de lectura de memoria fuera de límites en el kernel de Linux versiones anteriores a 5.9-rc2, con el sistema de archivos ext3/ext4, en la manera en que accede a un directorio con indexación rota. Este fallo permite a un usuario local bloquear el sistema si el directorio existe. La mayor amenaza de esta vulnerabilidad es la disponibilidad del sistema
A memory out-of-bounds read flaw was found in the Linux kernel's ext3/ext4 file system, in the way it accesses a directory with broken indexing. This flaw allows a local user to crash the system if the directory exists. The highest threat from this vulnerability is to system availability.
*Credits:
N/A
CVSS Scores
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
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Attack Vector
Attack Complexity
Authentication
Confidentiality
Integrity
Availability
* Common Vulnerability Scoring System
SSVC
- Decision:-
Exploitation
Automatable
Tech. Impact
* Organization's Worst-case Scenario
Timeline
- 2020-06-17 CVE Reserved
- 2020-09-15 CVE Published
- 2023-03-08 EPSS Updated
- 2024-08-04 CVE Updated
- ---------- Exploited in Wild
- ---------- KEV Due Date
- ---------- First Exploit
CWE
- CWE-125: Out-of-bounds Read
CAPEC
References (13)
| URL | Date | SRC |
|---|
| URL | Date | SRC |
|---|---|---|
| https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=5872331b3d91820e14716632ebb56b1399b34fe1 | 2023-11-07 |
| URL | Date | SRC |
|---|---|---|
| https://usn.ubuntu.com/4576-1 | 2023-11-07 | |
| https://usn.ubuntu.com/4578-1 | 2023-11-07 | |
| https://usn.ubuntu.com/4579-1 | 2023-11-07 | |
| https://access.redhat.com/security/cve/CVE-2020-14314 | 2021-05-18 | |
| https://bugzilla.redhat.com/show_bug.cgi?id=1853922 | 2021-05-18 | |
| https://lore.kernel.org/linux-ext4/f53e246b-647c-64bb-16ec-135383c70ad7@redhat.com/T/#u | 2021-05-18 |
Affected Vendors, Products, and Versions
| Vendor | Product | Version | Other | Status | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Vendor | Product | Version | Other | Status | <-- --> | Vendor | Product | Version | Other | Status |
| Linux Search vendor "Linux" | Linux Kernel Search vendor "Linux" for product "Linux Kernel" | <= 5.8.9 Search vendor "Linux" for product "Linux Kernel" and version " <= 5.8.9" | - |
Affected
| ||||||
| Linux Search vendor "Linux" | Linux Kernel Search vendor "Linux" for product "Linux Kernel" | 5.9.0 Search vendor "Linux" for product "Linux Kernel" and version "5.9.0" | rc1 |
Affected
| ||||||
| Debian Search vendor "Debian" | Debian Linux Search vendor "Debian" for product "Debian Linux" | 9.0 Search vendor "Debian" for product "Debian Linux" and version "9.0" | - |
Affected
| ||||||
| Canonical Search vendor "Canonical" | Ubuntu Linux Search vendor "Canonical" for product "Ubuntu Linux" | 14.04 Search vendor "Canonical" for product "Ubuntu Linux" and version "14.04" | esm |
Affected
| ||||||
| Canonical Search vendor "Canonical" | Ubuntu Linux Search vendor "Canonical" for product "Ubuntu Linux" | 16.04 Search vendor "Canonical" for product "Ubuntu Linux" and version "16.04" | esm |
Affected
| ||||||
| Canonical Search vendor "Canonical" | Ubuntu Linux Search vendor "Canonical" for product "Ubuntu Linux" | 18.04 Search vendor "Canonical" for product "Ubuntu Linux" and version "18.04" | lts |
Affected
| ||||||
| Canonical Search vendor "Canonical" | Ubuntu Linux Search vendor "Canonical" for product "Ubuntu Linux" | 20.04 Search vendor "Canonical" for product "Ubuntu Linux" and version "20.04" | lts |
Affected
| ||||||
| Starwindsoftware Search vendor "Starwindsoftware" | Starwind Virtual San Search vendor "Starwindsoftware" for product "Starwind Virtual San" | v8 Search vendor "Starwindsoftware" for product "Starwind Virtual San" and version "v8" | build12533, vsphere |
Affected
| ||||||
| Starwindsoftware Search vendor "Starwindsoftware" | Starwind Virtual San Search vendor "Starwindsoftware" for product "Starwind Virtual San" | v8 Search vendor "Starwindsoftware" for product "Starwind Virtual San" and version "v8" | build12658, vsphere |
Affected
| ||||||
| Starwindsoftware Search vendor "Starwindsoftware" | Starwind Virtual San Search vendor "Starwindsoftware" for product "Starwind Virtual San" | v8 Search vendor "Starwindsoftware" for product "Starwind Virtual San" and version "v8" | build12859, vsphere |
Affected
| ||||||
| Starwindsoftware Search vendor "Starwindsoftware" | Starwind Virtual San Search vendor "Starwindsoftware" for product "Starwind Virtual San" | v8 Search vendor "Starwindsoftware" for product "Starwind Virtual San" and version "v8" | build13170, vsphere |
Affected
| ||||||
| Starwindsoftware Search vendor "Starwindsoftware" | Starwind Virtual San Search vendor "Starwindsoftware" for product "Starwind Virtual San" | v8 Search vendor "Starwindsoftware" for product "Starwind Virtual San" and version "v8" | build13586, vsphere |
Affected
| ||||||
| Starwindsoftware Search vendor "Starwindsoftware" | Starwind Virtual San Search vendor "Starwindsoftware" for product "Starwind Virtual San" | v8 Search vendor "Starwindsoftware" for product "Starwind Virtual San" and version "v8" | build13861, vsphere |
Affected
| ||||||