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Canonical released today a new important kernel security update for all supported Ubuntu releases to address up to eight security vulnerabilities.
Coming less than a month after the previous Ubuntu kernel security update, the new kernel update is here to address CVE-2021-43976, a security vulnerability discovered by Brendan Dolan-Gavitt in the Marvell WiFi-Ex USB device driver, which could allow a physically proximate attacker to cause a denial of service (system crash).
The update also fixes CVE-2021-44879, a flaw discovered by Wenqing Liu in the F2FS file system implementation, as well as CVE-2022-0617, a security issue discovered in the UDF file system implementation. Both of these vulnerabilities could allow an attacker to cause a denial of service (system crash) by using a malicious F2FS or UDF image respectively.
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