CVE-2022-42328

2022-12-0701:15:11

CWE-667

XEN

web.nvd.nist.gov

165

cve-2022-42328

linux

netback driver

deadlock

xsa-392

cve-2022-42329

netpoll

xen-netback driver

CVSS3

5.5

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

AI Score

6.5

Confidence

High

EPSS

0.001

Percentile

27.7%

JSON

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).

Affected configurations

Nvd

Node

linuxlinux_kernelRange<6.0

Node

debiandebian_linuxMatch10.0

VendorProductVersionCPE
linuxlinux_kernel*cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
debiandebian_linux10.0cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*

Vendor	Product	Version	CPE
linux	linux_kernel	*	cpe:2.3:o:linux:linux_kernel::::::::
debian	debian_linux	10.0	cpe:2.3:o:debian:debian_linux:10.0:::::::*

CNA Affected

[
  {
    "vendor": "Linux",
    "product": "Linux",
    "versions": [
      {
        "version": "consult Xen advisory XSA-424",
        "status": "unknown"
      }
    ]
  }
]