CVE-2022-42329

Name: CVE-2022-42329
Creator: NVD / NIST
Published: 2022-12-07T01:15:11.323+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 5.5/10EPSS 0.21%

Last modified Jun 17, 2026

CVE-2022-42329 is a medium-severity vulnerability rated 5.5/10 on the CVSS scale. 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).. EPSS estimates a 0.21% chance of exploitation in the next 30 days.

Description

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).

Metrics

CVSS 3.1

5.5/10

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

EPSS Probability

0.21%

11.2th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Linux	Linux Kernel	< 6.0
Debian	Debian Linux	10.0

References

http://www.openwall.com/lists/oss-security/2022/12/08/2Mailing List, Patch, Third Party Advisory
http://www.openwall.com/lists/oss-security/2022/12/08/3Mailing List, Patch, Third Party Advisory
http://www.openwall.com/lists/oss-security/2022/12/09/2Mailing List, Patch, Third Party Advisory
https://lists.debian.org/debian-lts-announce/2022/12/msg00031.htmlMailing List, Third Party Advisory
https://lists.debian.org/debian-lts-announce/2022/12/msg00034.htmlMailing List, Third Party Advisory
https://xenbits.xenproject.org/xsa/advisory-424.txtVendor Advisory
http://www.openwall.com/lists/oss-security/2022/12/08/2Mailing List, Patch, Third Party Advisory
http://www.openwall.com/lists/oss-security/2022/12/08/3Mailing List, Patch, Third Party Advisory
http://www.openwall.com/lists/oss-security/2022/12/09/2Mailing List, Patch, Third Party Advisory
https://lists.debian.org/debian-lts-announce/2022/12/msg00031.htmlMailing List, Third Party Advisory
https://lists.debian.org/debian-lts-announce/2022/12/msg00034.htmlMailing List, Third Party Advisory
https://xenbits.xenproject.org/xsa/advisory-424.txtVendor Advisory

Timeline

Published: Dec 7, 2022
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2022-42329?

How severe is CVE-2022-42329?

CVE-2022-42329 has a CVSS score of 5.5/10 (MEDIUM severity). The EPSS model estimates a 0.21% probability of exploitation in the next 30 days.

How do I fix CVE-2022-42329?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2022-42329?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST