CVE-2023-1075

kernel: net/tls: tls_is_tx_ready() checked list_entry

Severity Score

3.3

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

NVD
RedHat

A flaw was found in the Linux Kernel. The tls_is_tx_ready() incorrectly checks for list emptiness, potentially accessing a type confused entry to the list_head, leaking the last byte of the confused field that overlaps with rec->tx_ready.

A memory leak flaw was found in the Linux kernel's TLS protocol. This issue could allow a local user unauthorized access to some memory.

*Credits: N/A

CVSS Scores

NISTv3.1 3.3

Attack Vector

Local

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

Low

Integrity

None

Availability

None

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2023-02-27 CVE Reserved
2023-03-27 CVE Published
2024-08-02 CVE Updated
2024-10-17 EPSS Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-200: Exposure of Sensitive Information to an Unauthorized Actor
CWE-843: Access of Resource Using Incompatible Type ('Type Confusion')

CAPEC

References (3)

URL	Tag	Source

URL	Date	SRC

URL	Date	SRC
https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git/commit/?id=ffe2a22562444720b05bdfeb999c03e810d84cbb	2023-04-05

URL	Date	SRC
https://access.redhat.com/security/cve/CVE-2023-1075	2024-02-07
https://bugzilla.redhat.com/show_bug.cgi?id=2173434	2024-02-07

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"				-		-		Affected