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CVE-2022-0433

Date: March 9, 2022

A NULL pointer dereference flaw was found in the Linux kernel's BPF subsystem in the way a user triggers the map_get_next_key function of the BPF bloom filter. This flaw allows a local user to crash the system. This flaw affects Linux kernel versions prior to 5.17-rc1.

Severity Score

Related Resources (7)

https://people.canonical.com/~ubuntu-security/cve/CVE-2022-0433
https://lore.kernel.org/bpf/1640776802-22421-1-git-send-email-tcs.kernel%40gmail.com/t/
https://lore.kernel.org/bpf/1640776802-22421-1-git-send-email-tcs.kernel@gmail.com/t/
https://nvd.nist.gov/vuln/detail/CVE-2022-0433
https://bugzilla.redhat.com/show_bug.cgi?id=2048259
https://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next.git/commit/?id=3ccdcee28415c4226de05438b4d89eb5514edf73
https://www.mend.io/vulnerability-database/CVE-2022-0433

Severity Score

Weakness Type (CWE)

NULL Pointer Dereference

CWE-476

Use of Uninitialized Resource

CWE-908

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

CVSS v2

Base Score:
Access Vector (AV): LOCAL
Access Complexity (AC): LOW
Authentication (AU): NONE
Confidentiality (C): NONE
Integrity (I): NONE
Availability (A): COMPLETE
Additional information:

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