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CVE-2022-2639

Public on 2022-09-01
Modified on 2024-03-01
Description

An integer coercion error was found in the openvswitch kernel module. Given a sufficiently large number of actions, while copying and reserving memory for a new action of a new flow, the reserve_sfa_size() function does not return -EMSGSIZE as expected, potentially leading to an out-of-bounds write access. This flaw allows a local user to crash or potentially escalate their privileges on the system.

Severity
Important
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CVSS v3 Base Score
7.8
See breakdown
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Affected Packages

Platform Package Release Date Advisory
Amazon Linux 1 kernel 2022-05-31 23:47 ALAS-2022-1591
Amazon Linux 2 - Core kernel 2022-05-31 23:50 ALAS2-2022-1798
Amazon Linux 2 - Kernel-5.10 Extra kernel 2022-06-04 00:05 ALAS2KERNEL-5.10-2022-014
Amazon Linux 2 - Kernel-5.15 Extra kernel 2023-06-29 23:20 ALAS2KERNEL-5.15-2023-023
Amazon Linux 2 - Kernel-5.4 Extra kernel 2022-06-04 00:07 ALAS2KERNEL-5.4-2022-026

CVSS Scores

Score Type Score Vector
Amazon Linux CVSSv3 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
NVD CVSSv3 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H