CVE-2022-2639
Last modified
CVE-2022-2639 is a high-severity vulnerability rated 7.8/10 on the CVSS scale. 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. EPSS estimates a 0.78% chance of exploitation in the next 30 days.
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.
Metrics
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux Kernel | >= 3.18.139, < 3.19 |
| Linux | Linux Kernel | >= 4.4.179, < 4.5 |
| Linux | Linux Kernel | >= 4.9.169, < 4.9.312 |
| Linux | Linux Kernel | >= 4.14.112, < 4.14.277 |
| Linux | Linux Kernel | >= 4.19.35, < 4.19.240 |
| Linux | Linux Kernel | >= 5.0.8, < 5.4.191 |
| Linux | Linux Kernel | >= 5.5, < 5.10.113 |
| Linux | Linux Kernel | >= 5.11, < 5.15.36 |
| Linux | Linux Kernel | >= 5.16, < 5.17.5 |
| Redhat | Enterprise Linux | 8.0 |
| Redhat | Enterprise Linux | 9.0 |
References
- https://bugzilla.redhat.com/show_bug.cgi?id=2084479Issue Tracking, Patch, Third Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=2084479Issue Tracking, Patch, Third Party Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
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How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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