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CVE-2022-2905

Date: September 9, 2022

An out-of-bounds memory read flaw was found in the Linux kernel's BPF subsystem in how a user calls the bpf_tail_call function with a key larger than the max_entries of the map. This flaw allows a local user to gain unauthorized access to data.

Severity Score

Related Resources (8)

https://nvd.nist.gov/vuln/detail/CVE-2022-2905
https://lore.kernel.org/bpf/984b37f9fdf7ac36831d2137415a4a915744c1b6.1661462653.git.daniel@iogearbox.net/
https://access.redhat.com/security/cve/CVE-2022-2905
https://people.canonical.com/~ubuntu-security/cve/CVE-2022-2905
https://security-tracker.debian.org/tracker/CVE-2022-2905
https://bugzilla.redhat.com/show_bug.cgi?id=2121800
https://lists.debian.org/debian-lts-announce/2022/11/msg00001.html
https://www.mend.io/vulnerability-database/CVE-2022-2905

Severity Score

Weakness Type (CWE)

Out-of-bounds Read

CWE-125

CVSS v3.1

Base Score:
Attack Vector (AV): NETWORK
Attack Complexity (AC): LOW
Privileges Required (PR): NONE
User Interaction (UI): NONE
Scope (S): UNCHANGED
Confidentiality (C): NONE
Integrity (I): NONE
Availability (A): HIGH

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