PT-2022-4152 · Linux+9 · Openvswitch+9
Tej Rathi
·
Published
2021-02-16
·
Updated
2025-12-08
·
CVE-2022-2639
CVSS v3.1
7.8
High
| Vector | AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
Name of the Vulnerable Software and Affected Versions
Linux kernel openvswitch (affected versions not specified)
Description
The issue is related to an integer coercion error in the openvswitch kernel module, specifically in the
reserve sfa size() function. This error can lead to an out-of-bounds write access when a sufficiently large number of actions are performed while copying and reserving memory for a new action of a new flow. The function does not return -EMSGSIZE as expected, potentially allowing a local user to crash the system or escalate their privileges.Recommendations
At the moment, there is no information about a newer version that contains a fix for this vulnerability.
Exploit
Memory Corruption
Integer Underflow
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Related Identifiers
Affected Products
Alt Linux
Almalinux
Astra Linux
Centos
Red Hat
Red Os
Rocky Linux
Suse
Ubuntu
Openvswitch