CVE-2023-39197

Kernel: dccp: conntrack out-of-bounds read in nf_conntrack_dccp_packet()

Severity Score

7.5

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

An out-of-bounds read vulnerability was found in Netfilter Connection Tracking (conntrack) in the Linux kernel. This flaw allows a remote user to disclose sensitive information via the DCCP protocol.

Se encontró una vulnerabilidad de lectura fuera de los límites en Netfilter Connection Tracking (conntrack) en el kernel de Linux. Esta falla permite que un usuario remoto revele información confidencial a través del protocolo DCCP.

This vulnerability allows remote attackers to disclose sensitive information on affected installations of Linux Kernel. Authentication is not required to exploit this vulnerability.
The specific flaw exists within the handling of the DCCP protocol. The issue results from the lack of proper validation of user-supplied data, which can result in a read past the end of an allocated data structure. An attacker can leverage this in conjunction with other vulnerabilities to execute arbitrary code in the context of the kernel.

*Credits: Lucas Leong (@_wmliang_) of Trend Micro Zero Day Initiative

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

None

Availability

None

Attack Vector

Network

Attack Complexity

High

Privileges Required

None

User Interaction

None

Scope

Changed

Confidentiality

Low

Integrity

None

Availability

None

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2023-07-25 CVE Reserved
2024-01-23 CVE Published
2024-08-20 CVE Updated
2024-08-26 EPSS Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-125: Out-of-bounds Read

CAPEC

References (2)

URL	Tag	Source
https://access.redhat.com/security/cve/CVE-2023-39197	Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=2218342	Issue Tracking

URL	Date	SRC

URL	Date	SRC

URL	Date	SRC

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
Fedoraproject Search vendor "Fedoraproject"		Fedora Search vendor "Fedoraproject" for product "Fedora"				38 Search vendor "Fedoraproject" for product "Fedora" and version "38"		-		Affected