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Rewterz Threat Advisory – Multiple Linux Kernel Vulnerabilities

Severity

Medium

Analysis Summary

CVE-2022-1975 CVSS:6.2

Linux Kernel is vulnerable to a denial of service, caused by a sleep in atomic context flaw when nfc firmware download timeout. By sending a specially-crafted request, a local attacker could exploit this vulnerability to cause the system to crash.

CVE-2022-1974 CVSS:6.2

Linux Kernel is vulnerable to a denial of service, caused by a use-after-free flaw in the device_is_registered() in nfc netlink related functions. By simulating a specially-crafted nfc device from user-space, a local attacker could exploit this vulnerability to cause the system to crash.

Impact

  • Denial of Service

Indicators Of Compromise

CVE

  • CVE-2022-1975
  • CVE-2022-1974

Affected Vendors

Linux

Affected Products

Linux Kernel

Remediation

Refer to Linux Kernel Security Advisory for patch, upgrade, or suggested workaround information.

Linux Kernel Security Advisory