Guests can trigger deadlock in Linux netback driver T[his CNA...
Vulnerability 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).
Impact Analysis
Refer to official advisory for detailed impact metrics.
Remediation
Ensure systems are updated to the latest vendor-supplied patch levels.
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Credits & Attribution
No credits recorded in the NVD database.
References
- 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/2022/12/08/2
- http://www.openwall.com/lists/oss-security/2022/12/09/2
- https://lists.debian.org/debian-lts-announce/2022/12/msg00031.html
- https://lists.debian.org/debian-lts-announce/2022/12/msg00034.html
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Weaknesses (CWE)
No CWE data available
MITRE ATT&CK TTPs
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