CVE-2022-42721
MediumA list management bug in BSS handling in the mac80211 stack in the Linux kernel 5.1 through 5.19.x before 5.19.16 could be used by local attackers (able to inject WLAN frames) to corrupt a linked list and, in turn, potentially execute code.
CVSS 3.1 score
5.5
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Weakness type
CWE-835CVE-2022-42721 is a Infinite Loop vulnerability
What is Infinite Loop?
The product contains an iteration that does not exit even when it should. Learn more on MITRE CWE
References
The following references provide additional information about CVE-2022-42721 including vendor advisories, patch commits, exploit details, and third-party analysis. Links are sourced from the NIST NVD database.
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Packet Stormhttp://packetstormsecurity.com/files/169951/Kernel-Live-Patch-Security-Notice-LSN-0090-1.htmlThird Party Advisory VDB Entry
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Exploit Mailing List Third Party Advisory
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Mailing List Third Party Advisory
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Debian Securityhttps://www.debian.org/security/2022/dsa-5257Third Party Advisory
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PatchKernel patch commithttps://bugzilla.suse.com/show_bug.cgi?id=1204060
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PatchKernel patch commithttps://git.kernel.org/pub/scm/linux/kernel/git/wireless/wireless.git/commit/?id=bcca852027e5878aec911a347407ecc88d6fff7f
Frequently asked questions
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What is CVE-2022-42721?
CVE-2022-42721 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10 , classified as an Infinite Loop flaw (CWE-835) . CVE-2022-42721 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
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What is the CVSS score for CVE-2022-42721?
CVE-2022-42721 has a CVSS score of 5.5 out of 10, rated Medium severity (CVSS 3.1). The vector string is
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H. -
Is there a patch available for CVE-2022-42721?
No patch is currently available for CVE-2022-42721. Monitor the NIST NVD and your Linux distribution's security advisories for updates.
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Is CVE-2022-42721 actively exploited?
No — CVE-2022-42721 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.
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What is Infinite Loop (CWE-835)?
The product contains an iteration that does not exit even when it should. View CWE-835 on MITRE CWE →