CVE-2022-42329

Severity Score

5.5

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

Guests can trigger deadlock in Linux netback driver T[his CNA information record relates to multiple CVEs; the text explains which aspects/vulnerabilities correspond to which CVE.] The patch for XSA-392 introduced another issue which might result in a deadlock when trying to free the SKB of a packet dropped due to the XSA-392 handling (CVE-2022-42328). Additionally when dropping packages for other reasons the same deadlock could occur in case of netpoll being active for the interface the xen-netback driver is connected to (CVE-2022-42329).

Los invitados pueden provocar un punto muerto en Linux netback driver T. Este registro de información CNA se relaciona con múltiples CVE; el texto explica qué aspectos/vulnerabilidades corresponden a cada CVE.] El parche para XSA-392 introdujo otro problema que podría resultar en un punto muerto al intentar liberar el SKB de un paquete caído debido al manejo de XSA-392 (CVE-2022- 42328). Además, al descartar paquetes por otros motivos, podría producirse el mismo punto muerto en caso de que netpoll esté activo para la interfaz a la que está conectado el controlador xen-netback (CVE-2022-42329).

*Credits: N/A

CVSS Scores

NISTv3.1 5.5

Attack Vector

Local

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

High

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2022-10-03 CVE Reserved
2022-12-07 CVE Published
2024-06-29 EPSS Updated
2024-08-03 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-667: Improper Locking

CAPEC

References (6)

URL	Tag	Source
https://lists.debian.org/debian-lts-announce/2022/12/msg00031.html	Mailing List
https://lists.debian.org/debian-lts-announce/2022/12/msg00034.html	Mailing List

URL	Date	SRC

URL	Date	SRC
http://www.openwall.com/lists/oss-security/2022/12/08/2	2023-01-10
http://www.openwall.com/lists/oss-security/2022/12/08/3	2023-01-10
http://www.openwall.com/lists/oss-security/2022/12/09/2	2023-01-10

URL	Date	SRC
https://xenbits.xenproject.org/xsa/advisory-424.txt	2023-01-10

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"				< 6.0 Search vendor "Linux" for product "Linux Kernel" and version " < 6.0"		-		Affected
Debian Search vendor "Debian"		Debian Linux Search vendor "Debian" for product "Debian Linux"				10.0 Search vendor "Debian" for product "Debian Linux" and version "10.0"		-		Affected