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CVE-2022-42328

Date: December 6, 2022

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).

Language: C

Severity Score

Related Resources (9)

https://nvd.nist.gov/vuln/detail/CVE-2022-42328
https://xenbits.xenproject.org/xsa/advisory-424.txt
http://www.openwall.com/lists/oss-security/2022/12/08/3
http://www.openwall.com/lists/oss-security/2022/12/09/2
http://www.openwall.com/lists/oss-security/2022/12/08/2
https://lists.debian.org/debian-lts-announce/2022/12/msg00031.html
https://security-tracker.debian.org/tracker/CVE-2022-42328
https://lists.debian.org/debian-lts-announce/2022/12/msg00034.html
https://www.mend.io/vulnerability-database/CVE-2022-42328

Severity Score

Weakness Type (CWE)

Improper Locking

CWE-667

CVSS v3.1

Base Score:
Attack Vector (AV): LOCAL
Attack Complexity (AC): LOW
Privileges Required (PR): LOW
User Interaction (UI): NONE
Scope (S): UNCHANGED
Confidentiality (C): NONE
Integrity (I): NONE
Availability (A): HIGH

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