CVE-2023-0459
Copy_from_user Spectre-V1 Gadget in Linux Kernel
Severity Score
5.5
*CVSS v3.1
Exploit Likelihood
*EPSS
Affected Versions
*CPE
Public Exploits
0
*Multiple Sources
Exploited in Wild
-
*KEV
Decision
Track
*SSVC
Descriptions
Copy_from_user on 64-bit versions of the Linux kernel does not implement the __uaccess_begin_nospec allowing a user to bypass the "access_ok" check and pass a kernel pointer to copy_from_user(). This would allow an attacker to leak information. We recommend upgrading beyond commit 74e19ef0ff8061ef55957c3abd71614ef0f42f47
A vulnerability was found in copy_from_user in 64-bit versions of the Linux kernel. This flaw allows a local attacker to bypass the "access_ok" sanity check and pass a kernel pointer to copy_from_user(), resulting in kernel data leaking.
*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
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
* Common Vulnerability Scoring System
SSVC
- Decision:Track
Exploitation
Automatable
Tech. Impact
* Organization's Worst-case Scenario
Timeline
- 2023-01-24 CVE Reserved
- 2023-05-16 CVE Published
- 2023-05-26 EPSS Updated
- 2024-09-26 CVE Updated
- ---------- Exploited in Wild
- ---------- KEV Due Date
- ---------- First Exploit
CWE
- CWE-402: Transmission of Private Resources into a New Sphere ('Resource Leak')
- CWE-763: Release of Invalid Pointer or Reference
CAPEC
- CAPEC-129: Pointer Manipulation
References (4)
| URL | Tag | Source |
|---|
| URL | Date | SRC |
|---|
| URL | Date | SRC |
|---|---|---|
| https://github.com/torvalds/linux/commit/4b842e4e25b12951fa10dedb4bc16bc47e3b850c | 2023-06-06 | |
| https://github.com/torvalds/linux/commit/74e19ef0ff8061ef55957c3abd71614ef0f42f47 | 2023-06-06 |
| URL | Date | SRC |
|---|---|---|
| https://access.redhat.com/security/cve/CVE-2023-0459 | 2022-05-10 | |
| https://bugzilla.redhat.com/show_bug.cgi?id=2216383 | 2022-05-10 |
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" | < 4.14.307 Search vendor "Linux" for product "Linux Kernel" and version " < 4.14.307" | - |
Affected
| ||||||
| Linux Search vendor "Linux" | Linux Kernel Search vendor "Linux" for product "Linux Kernel" | >= 4.19.0 < 4.19.274 Search vendor "Linux" for product "Linux Kernel" and version " >= 4.19.0 < 4.19.274" | - |
Affected
| ||||||
| Linux Search vendor "Linux" | Linux Kernel Search vendor "Linux" for product "Linux Kernel" | >= 5.4.0 < 5.4.233 Search vendor "Linux" for product "Linux Kernel" and version " >= 5.4.0 < 5.4.233" | - |
Affected
| ||||||
| Linux Search vendor "Linux" | Linux Kernel Search vendor "Linux" for product "Linux Kernel" | >= 5.10.0 < 5.10.170 Search vendor "Linux" for product "Linux Kernel" and version " >= 5.10.0 < 5.10.170" | - |
Affected
| ||||||
| Linux Search vendor "Linux" | Linux Kernel Search vendor "Linux" for product "Linux Kernel" | >= 5.15.0 < 5.15.96 Search vendor "Linux" for product "Linux Kernel" and version " >= 5.15.0 < 5.15.96" | - |
Affected
| ||||||
| Linux Search vendor "Linux" | Linux Kernel Search vendor "Linux" for product "Linux Kernel" | >= 6.1.0 < 6.1.14 Search vendor "Linux" for product "Linux Kernel" and version " >= 6.1.0 < 6.1.14" | - |
Affected
| ||||||
| Linux Search vendor "Linux" | Linux Kernel Search vendor "Linux" for product "Linux Kernel" | >= 6.2.0 < 6.2.1 Search vendor "Linux" for product "Linux Kernel" and version " >= 6.2.0 < 6.2.1" | - |
Affected
| ||||||