CVE-2020-8647
kernel: out-of-bounds read in in vc_do_resize function in drivers/tty/vt/vt.c
Severity Score
6.1
*CVSS v3.1
Exploit Likelihood
*EPSS
Affected Versions
*CPE
Public Exploits
0
*Multiple Sources
Exploited in Wild
-
*KEV
Decision
-
*SSVC
Descriptions
There is a use-after-free vulnerability in the Linux kernel through 5.5.2 in the vc_do_resize function in drivers/tty/vt/vt.c.
Se presenta una vulnerabilidad de uso de la memoria previamente liberada en el kernel de Linux versiones hasta 5.5.2 en la función vc_do_resize en el archivo drivers/tty/vt/vt.c.
A flaw was found in the Linux kernel’s virtual console resize functionality. An attacker with local access to virtual consoles can use the virtual console resizing code to gather kernel internal data structures.
*Credits:
N/A
CVSS Scores
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
- 2020-02-06 CVE Reserved
- 2020-02-06 CVE Published
- 2023-03-08 EPSS Updated
- 2024-08-04 CVE Updated
- ---------- Exploited in Wild
- ---------- KEV Due Date
- ---------- First Exploit
CWE
- CWE-200: Exposure of Sensitive Information to an Unauthorized Actor
- CWE-416: Use After Free
CAPEC
References (8)
| URL | Tag | Source |
|---|---|---|
| https://lists.debian.org/debian-lts-announce/2020/06/msg00011.html | Mailing List |
|
| https://lists.debian.org/debian-lts-announce/2020/06/msg00012.html | Mailing List |
|
| https://lists.debian.org/debian-lts-announce/2020/06/msg00013.html | Mailing List |
|
| URL | Date | SRC |
|---|
| URL | Date | SRC |
|---|---|---|
| https://bugzilla.kernel.org/show_bug.cgi?id=206359 | 2021-12-30 |
| URL | Date | SRC |
|---|---|---|
| http://lists.opensuse.org/opensuse-security-announce/2020-03/msg00039.html | 2021-12-30 | |
| https://www.debian.org/security/2020/dsa-4698 | 2021-12-30 | |
| https://access.redhat.com/security/cve/CVE-2020-8647 | 2022-04-05 | |
| https://bugzilla.redhat.com/show_bug.cgi?id=1802563 | 2022-04-05 |
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" | <= 5.5.2 Search vendor "Linux" for product "Linux Kernel" and version " <= 5.5.2" | - |
Affected
| ||||||
| Debian Search vendor "Debian" | Debian Linux Search vendor "Debian" for product "Debian Linux" | 8.0 Search vendor "Debian" for product "Debian Linux" and version "8.0" | - |
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
| ||||||
| Opensuse Search vendor "Opensuse" | Leap Search vendor "Opensuse" for product "Leap" | 15.1 Search vendor "Opensuse" for product "Leap" and version "15.1" | - |
Affected
| ||||||