CVE-2023-3567
Kernel: use after free in vcs_read in drivers/tty/vt/vc_screen.c due to race
Severity Score
7.1
*CVSS v3.1
Exploit Likelihood
*EPSS
Affected Versions
*CPE
Public Exploits
0
*Multiple Sources
Exploited in Wild
-
*KEV
Decision
-
*SSVC
Descriptions
A use-after-free flaw was found in vcs_read in drivers/tty/vt/vc_screen.c in vc_screen in the Linux Kernel. This issue may allow an attacker with local user access to cause a system crash or leak internal kernel information.
It was discovered that the IP-VLAN network driver for the Linux kernel did not properly initialize memory in some situations, leading to an out-of- bounds write vulnerability. An attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. It was discovered that the virtual terminal driver in the Linux kernel contained a use-after-free vulnerability. A local attacker could use this to cause a denial of service (system crash) or possibly expose sensitive information (kernel memory). Various other issues were also addressed.
*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
- 2023-07-09 CVE Reserved
- 2023-07-24 CVE Published
- 2024-11-15 CVE Updated
- 2025-03-30 EPSS Updated
- ---------- Exploited in Wild
- ---------- KEV Due Date
- ---------- First Exploit
CWE
- CWE-416: Use After Free
CAPEC
References (14)
| URL | Date | SRC |
|---|
| URL | Date | SRC |
|---|---|---|
| https://www.spinics.net/lists/stable-commits/msg285184.html | 2024-05-22 |
| URL | Date | SRC |
|---|---|---|
| https://access.redhat.com/errata/RHSA-2024:0412 | 2024-05-22 | |
| https://access.redhat.com/errata/RHSA-2024:0431 | 2024-05-22 | |
| https://access.redhat.com/errata/RHSA-2024:0432 | 2024-05-22 | |
| https://access.redhat.com/errata/RHSA-2024:0439 | 2024-05-22 | |
| https://access.redhat.com/errata/RHSA-2024:0448 | 2024-05-22 | |
| https://access.redhat.com/errata/RHSA-2024:0575 | 2024-05-22 | |
| https://access.redhat.com/errata/RHSA-2024:2394 | 2024-05-22 | |
| https://access.redhat.com/errata/RHSA-2024:2950 | 2024-05-22 | |
| https://access.redhat.com/errata/RHSA-2024:3138 | 2024-05-22 | |
| https://access.redhat.com/security/cve/CVE-2023-3567 | 2024-05-22 | |
| https://bugzilla.redhat.com/show_bug.cgi?id=2221463 | 2024-05-22 |
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" | < 6.2.0 Search vendor "Linux" for product "Linux Kernel" and version " < 6.2.0" | - |
Affected
| ||||||
| Linux Search vendor "Linux" | Linux Kernel Search vendor "Linux" for product "Linux Kernel" | 6.2.0 Search vendor "Linux" for product "Linux Kernel" and version "6.2.0" | rc1 |
Affected
| ||||||
| Linux Search vendor "Linux" | Linux Kernel Search vendor "Linux" for product "Linux Kernel" | 6.2.0 Search vendor "Linux" for product "Linux Kernel" and version "6.2.0" | rc2 |
Affected
| ||||||
| Linux Search vendor "Linux" | Linux Kernel Search vendor "Linux" for product "Linux Kernel" | 6.2.0 Search vendor "Linux" for product "Linux Kernel" and version "6.2.0" | rc3 |
Affected
| ||||||
| Linux Search vendor "Linux" | Linux Kernel Search vendor "Linux" for product "Linux Kernel" | 6.2.0 Search vendor "Linux" for product "Linux Kernel" and version "6.2.0" | rc4 |
Affected
| ||||||
| Linux Search vendor "Linux" | Linux Kernel Search vendor "Linux" for product "Linux Kernel" | 6.2.0 Search vendor "Linux" for product "Linux Kernel" and version "6.2.0" | rc5 |
Affected
| ||||||
| Linux Search vendor "Linux" | Linux Kernel Search vendor "Linux" for product "Linux Kernel" | 6.2.0 Search vendor "Linux" for product "Linux Kernel" and version "6.2.0" | rc6 |
Affected
| ||||||
| Redhat Search vendor "Redhat" | Enterprise Linux Search vendor "Redhat" for product "Enterprise Linux" | 8.0 Search vendor "Redhat" for product "Enterprise Linux" and version "8.0" | - |
Affected
| ||||||
| Redhat Search vendor "Redhat" | Enterprise Linux Search vendor "Redhat" for product "Enterprise Linux" | 9.0 Search vendor "Redhat" for product "Enterprise 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
| ||||||
| Canonical Search vendor "Canonical" | Ubuntu Linux Search vendor "Canonical" for product "Ubuntu Linux" | 22.04 Search vendor "Canonical" for product "Ubuntu Linux" and version "22.04" | lts |
Affected
| ||||||