Is CVE-2022-2639 in the CISA KEV catalog?

No. CVE-2022-2639 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2022-2639?

CVE-2022-2639 has a CVSS v3 base score of 7.8 (HIGH).

What is the EPSS score for CVE-2022-2639?

CVE-2022-2639 has an EPSS score of 0.78% (51th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2022-2639?

Upgrade linux on debian 11 to 5.10.113-1 or later. Fixes are available for 18 affected products.

CVE & CISA-KEV Catalog

CVE-2022-2639

HIGH

7.8

CVSS v3

NVD

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.

CWE-192 CWE-681

How to fix

Remediation Available

linuxDebian

Fixed in:5.10.113-1CVE-2022-2639

Fixed in:5.17.6-1CVE-2022-2639

linuxUbuntu

Fixed in:4.4.0-234.268USN-5650-1

linux-awsUbuntu

Fixed in:4.4.0-1113.119USN-5650-1

Fixed in:4.4.0-1151.166USN-5650-1

linux-image-4.4.0-1113-awsUbuntu

Fixed in:4.4.0-1113.119USN-5650-1

linux-image-4.4.0-1114-kvmUbuntu

Fixed in:4.4.0-1114.124USN-5650-1

linux-image-4.4.0-1151-awsUbuntu

Fixed in:4.4.0-1151.166USN-5650-1

linux-image-4.4.0-234-genericUbuntu

Fixed in:4.4.0-234.268~14.04.1USN-5650-1

Fixed in:4.4.0-234.268USN-5650-1

linux-image-4.4.0-234-lowlatencyUbuntu

Fixed in:4.4.0-234.268~14.04.1USN-5650-1

Fixed in:4.4.0-234.268USN-5650-1

linux-image-awsUbuntu

Fixed in:4.4.0.1113.110USN-5650-1

Fixed in:4.4.0.1151.155USN-5650-1

linux-image-genericUbuntu

Fixed in:4.4.0.234.240USN-5650-1

linux-image-generic-lts-xenialUbuntu

Fixed in:4.4.0.234.203USN-5650-1

linux-image-kvmUbuntu

Fixed in:4.4.0.1114.111USN-5650-1

linux-image-lowlatencyUbuntu

Fixed in:4.4.0.234.240USN-5650-1

linux-image-lowlatency-lts-xenialUbuntu

Fixed in:4.4.0.234.203USN-5650-1

linux-image-virtualUbuntu

Fixed in:4.4.0.234.240USN-5650-1

linux-image-virtual-lts-xenialUbuntu

Fixed in:4.4.0.234.203USN-5650-1

linux-kvmUbuntu

Fixed in:4.4.0-1114.124USN-5650-1

linux-lts-xenialUbuntu

Fixed in:4.4.0-234.268~14.04.1USN-5650-1

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorLocal

Attack ComplexityLow

Privileges RequiredLow

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Exploit Intelligence

0.78%probability of exploitation in 30 days

51stpercentile

Moderate risk: more likely to be exploited than 51% of all known CVEs.

References

Patch2

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2024-11-21.