Is CVE-2023-52633 in the CISA KEV catalog?

No. CVE-2023-52633 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2023-52633?

CVE-2023-52633 has a CVSS v3 base score of 5.0 (MEDIUM).

What is the EPSS score for CVE-2023-52633?

CVE-2023-52633 has an EPSS score of 0.23% (13th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2023-52633?

Upgrade linux on debian 12 to 6.1.82-1 or later. Fixes are available for 126 affected products.

CVE & CISA-KEV Catalog

CVE-2023-52633

MEDIUM

5.0

CVSS v3

NVD

Description

In the Linux kernel, the following vulnerability has been resolved: um: time-travel: fix time corruption In 'basic' time-travel mode (without =inf-cpu or =ext), we still get timer interrupts. These can happen at arbitrary points in time, i.e. while in timer_read(), which pushes time forward just a little bit. Then, if we happen to get the interrupt after calculating the new time to push to, but before actually finishing that, the interrupt will set the time to a value that's incompatible with the forward, and we'll crash because time goes backwards when we do the forwarding. Fix this by reading the time_travel_time, calculating the adjustment, and doing the adjustment all with interrupts disabled.

CWE-787Out-of-bounds Write

How to fix

Remediation Available

linuxDebian

Fixed in:6.1.82-1CVE-2023-52633

Fixed in:6.7.7-1CVE-2023-52633

linuxUbuntu

Fixed in:5.15.0-106.116USN-6766-1

Fixed in:6.5.0-41.41USN-6818-1

linux-awsUbuntu

Fixed in:5.15.0-1061.67USN-6766-3

Fixed in:6.5.0-1021.21USN-6819-2

linux-aws-5.15Ubuntu

Fixed in:5.15.0-1061.67~20.04.1USN-6766-3

linux-azureUbuntu

Fixed in:5.15.0-1063.72USN-6766-1

Fixed in:6.5.0-1022.23USN-6819-1

linux-azure-5.15Ubuntu

Fixed in:5.15.0-1063.72~20.04.1USN-6766-1

linux-azure-6.5Ubuntu

Fixed in:6.5.0-1022.23~22.04.1USN-6819-1

linux-azure-fdeUbuntu

Fixed in:5.15.0-1063.72.1USN-6766-1

linux-azure-fde-5.15Ubuntu

Fixed in:5.15.0-1063.72~20.04.1.1USN-6766-1

linux-gcpUbuntu

Fixed in:5.15.0-1059.67USN-6766-1

Fixed in:6.5.0-1022.24USN-6818-1

linux-gcp-5.15Ubuntu

Fixed in:5.15.0-1059.67~20.04.1USN-6766-1

linux-gcp-6.5Ubuntu

Fixed in:6.5.0-1022.24~22.04.1USN-6818-1

linux-gkeUbuntu

Fixed in:5.15.0-1058.63USN-6766-1

linux-gkeopUbuntu

Fixed in:5.15.0-1044.51USN-6766-1

linux-gkeop-5.15Ubuntu

Fixed in:5.15.0-1044.51~20.04.1USN-6766-1

linux-hwe-5.15Ubuntu

Fixed in:5.15.0-106.116~20.04.1USN-6766-2

linux-hwe-6.5Ubuntu

Fixed in:6.5.0-41.41~22.04.2USN-6818-4

linux-ibmUbuntu

Fixed in:5.15.0-1054.57USN-6766-1

linux-ibm-5.15Ubuntu

Fixed in:5.15.0-1054.57~20.04.1USN-6766-1

linux-image-5.15.0-1044-gkeopUbuntu

Fixed in:5.15.0-1044.51~20.04.1USN-6766-1

Fixed in:5.15.0-1044.51USN-6766-1

linux-image-5.15.0-1054-ibmUbuntu

Fixed in:5.15.0-1054.57~20.04.1USN-6766-1

Fixed in:5.15.0-1054.57USN-6766-1

linux-image-5.15.0-1054-nvidiaUbuntu

Fixed in:5.15.0-1054.55USN-6766-1

linux-image-5.15.0-1054-nvidia-lowlatencyUbuntu

Fixed in:5.15.0-1054.55USN-6766-1

linux-image-5.15.0-1054-raspiUbuntu

Fixed in:5.15.0-1054.57USN-6766-2

linux-image-5.15.0-1057-intel-iotgUbuntu

Fixed in:5.15.0-1057.63USN-6795-1

linux-image-5.15.0-1058-gkeUbuntu

Fixed in:5.15.0-1058.63USN-6766-1

linux-image-5.15.0-1058-intel-iotgUbuntu

Fixed in:5.15.0-1058.64~20.04.1USN-6828-1

linux-image-5.15.0-1058-kvmUbuntu

Fixed in:5.15.0-1058.63USN-6766-1

linux-image-5.15.0-1059-gcpUbuntu

Fixed in:5.15.0-1059.67~20.04.1USN-6766-1

Fixed in:5.15.0-1059.67USN-6766-1

linux-image-5.15.0-1059-oracleUbuntu

Fixed in:5.15.0-1059.65~20.04.1USN-6766-1

Fixed in:5.15.0-1059.65USN-6766-1

linux-image-5.15.0-106-genericUbuntu

Fixed in:5.15.0-106.116~20.04.1USN-6766-2

Fixed in:5.15.0-106.116USN-6766-1

linux-image-5.15.0-106-generic-64kUbuntu

Fixed in:5.15.0-106.116~20.04.1USN-6766-2

Fixed in:5.15.0-106.116USN-6766-1

linux-image-5.15.0-106-generic-lpaeUbuntu

Fixed in:5.15.0-106.116~20.04.1USN-6766-2

Fixed in:5.15.0-106.116USN-6766-1

linux-image-5.15.0-106-lowlatencyUbuntu

Fixed in:5.15.0-106.116~20.04.1USN-6766-1

Fixed in:5.15.0-106.116USN-6766-1

linux-image-5.15.0-106-lowlatency-64kUbuntu

Fixed in:5.15.0-106.116~20.04.1USN-6766-1

Fixed in:5.15.0-106.116USN-6766-1

linux-image-5.15.0-1061-awsUbuntu

Fixed in:5.15.0-1061.67~20.04.1USN-6766-3

Fixed in:5.15.0-1061.67USN-6766-3

linux-image-5.15.0-1063-azureUbuntu

Fixed in:5.15.0-1063.72~20.04.1USN-6766-1

Fixed in:5.15.0-1063.72USN-6766-1

linux-image-5.15.0-1063-azure-fdeUbuntu

Fixed in:5.15.0-1063.72~20.04.1.1USN-6766-1

Fixed in:5.15.0-1063.72.1USN-6766-1

linux-image-6.5.0-1015-starfiveUbuntu

Fixed in:6.5.0-1015.16~22.04.1USN-6819-1

Fixed in:6.5.0-1015.16USN-6819-1

linux-image-6.5.0-1017-laptopUbuntu

Fixed in:6.5.0-1017.20USN-6818-2

linux-image-6.5.0-1018-raspiUbuntu

Fixed in:6.5.0-1018.21USN-6818-1

linux-image-6.5.0-1021-awsUbuntu

Fixed in:6.5.0-1021.21USN-6819-2

linux-image-6.5.0-1021-nvidiaUbuntu

Fixed in:6.5.0-1021.22USN-6818-3

linux-image-6.5.0-1021-nvidia-64kUbuntu

Fixed in:6.5.0-1021.22USN-6818-3

linux-image-6.5.0-1022-azureUbuntu

Fixed in:6.5.0-1022.23~22.04.1USN-6819-1

Fixed in:6.5.0-1022.23USN-6819-1

linux-image-6.5.0-1022-azure-fdeUbuntu

Fixed in:6.5.0-1022.23~22.04.1USN-6819-1

Fixed in:6.5.0-1022.23USN-6819-1

linux-image-6.5.0-1022-gcpUbuntu

Fixed in:6.5.0-1022.24~22.04.1USN-6818-1

Fixed in:6.5.0-1022.24USN-6818-1

linux-image-6.5.0-1024-oemUbuntu

Fixed in:6.5.0-1024.25USN-6819-3

linux-image-6.5.0-1024-oracleUbuntu

Fixed in:6.5.0-1024.24~22.04.1USN-6819-4

Fixed in:6.5.0-1024.24USN-6819-2

linux-image-6.5.0-1024-oracle-64kUbuntu

Fixed in:6.5.0-1024.24~22.04.1USN-6819-4

Fixed in:6.5.0-1024.24USN-6819-2

linux-image-6.5.0-41-genericUbuntu

Fixed in:6.5.0-41.41~22.04.2USN-6818-4

Fixed in:6.5.0-41.41USN-6818-1

linux-image-6.5.0-41-generic-64kUbuntu

Fixed in:6.5.0-41.41~22.04.2USN-6818-4

Fixed in:6.5.0-41.41USN-6818-1

linux-image-6.5.0-41-lowlatencyUbuntu

Fixed in:6.5.0-41.41.1~22.04.1USN-6818-1

Fixed in:6.5.0-41.41.1USN-6818-1

linux-image-6.5.0-41-lowlatency-64kUbuntu

Fixed in:6.5.0-41.41.1~22.04.1USN-6818-1

Fixed in:6.5.0-41.41.1USN-6818-1

linux-image-awsUbuntu

Fixed in:5.15.0.1061.67~20.04.1USN-6766-3

Fixed in:6.5.0.1021.21USN-6819-2

linux-image-aws-lts-22.04Ubuntu

Fixed in:5.15.0.1061.61USN-6766-3

linux-image-azureUbuntu

Fixed in:5.15.0.1063.72~20.04.1USN-6766-1

Fixed in:6.5.0.1022.23~22.04.1USN-6819-1

Fixed in:6.5.0.1022.26USN-6819-1

linux-image-azure-cvmUbuntu

Fixed in:5.15.0.1063.72~20.04.1USN-6766-1

linux-image-azure-fdeUbuntu

Fixed in:5.15.0.1063.72~20.04.1.41USN-6766-1

Fixed in:6.5.0.1022.23~22.04.1USN-6819-1

Fixed in:6.5.0.1022.26USN-6819-1

linux-image-azure-fde-lts-22.04Ubuntu

Fixed in:5.15.0.1063.72.41USN-6766-1

linux-image-azure-lts-22.04Ubuntu

Fixed in:5.15.0.1063.61USN-6766-1

linux-image-gcpUbuntu

Fixed in:5.15.0.1059.67~20.04.1USN-6766-1

Fixed in:6.5.0.1022.24~22.04.1USN-6818-1

Fixed in:6.5.0.1022.24USN-6818-1

linux-image-gcp-lts-22.04Ubuntu

Fixed in:5.15.0.1059.55USN-6766-1

linux-image-genericUbuntu

Fixed in:5.15.0.106.106USN-6766-1

Fixed in:6.5.0.41.41USN-6818-1

linux-image-generic-64kUbuntu

Fixed in:5.15.0.106.106USN-6766-1

Fixed in:6.5.0.41.41USN-6818-1

linux-image-generic-64k-hwe-20.04Ubuntu

Fixed in:5.15.0.106.116~20.04.1USN-6766-2

linux-image-generic-64k-hwe-22.04Ubuntu

Fixed in:6.5.0.41.41~22.04.2USN-6818-4

linux-image-generic-hwe-20.04Ubuntu

Fixed in:5.15.0.106.116~20.04.1USN-6766-2

linux-image-generic-hwe-22.04Ubuntu

Fixed in:6.5.0.41.41~22.04.2USN-6818-4

linux-image-generic-lpaeUbuntu

Fixed in:5.15.0.106.106USN-6766-1

Fixed in:6.5.0.41.41USN-6818-1

linux-image-generic-lpae-hwe-20.04Ubuntu

Fixed in:5.15.0.106.116~20.04.1USN-6766-2

linux-image-gkeUbuntu

Fixed in:5.15.0.1058.57USN-6766-1

linux-image-gke-5.15Ubuntu

Fixed in:5.15.0.1058.57USN-6766-1

linux-image-gkeopUbuntu

Fixed in:5.15.0.1044.43USN-6766-1

linux-image-gkeop-5.15Ubuntu

Fixed in:5.15.0.1044.51~20.04.1USN-6766-1

Fixed in:5.15.0.1044.43USN-6766-1

linux-image-ibmUbuntu

Fixed in:5.15.0.1054.57~20.04.1USN-6766-1

Fixed in:5.15.0.1054.50USN-6766-1

linux-image-intelUbuntu

Fixed in:5.15.0.1058.64~20.04.1USN-6828-1

linux-image-intel-iotgUbuntu

Fixed in:5.15.0.1058.64~20.04.1USN-6828-1

Fixed in:5.15.0.1057.57USN-6795-1

linux-image-kvmUbuntu

Fixed in:5.15.0.1058.54USN-6766-1

Fixed in:6.5.0.41.41USN-6818-1

linux-image-laptop-23.10Ubuntu

Fixed in:6.5.0.1017.20USN-6818-2

linux-image-lowlatencyUbuntu

Fixed in:5.15.0.106.101USN-6766-1

Fixed in:6.5.0.41.41.1USN-6818-1

linux-image-lowlatency-64kUbuntu

Fixed in:5.15.0.106.101USN-6766-1

Fixed in:6.5.0.41.41.1USN-6818-1

linux-image-lowlatency-64k-hwe-20.04Ubuntu

Fixed in:5.15.0.106.116~20.04.1USN-6766-1

linux-image-lowlatency-64k-hwe-22.04Ubuntu

Fixed in:6.5.0.41.41.1~22.04.1USN-6818-1

linux-image-lowlatency-hwe-20.04Ubuntu

Fixed in:5.15.0.106.116~20.04.1USN-6766-1

linux-image-lowlatency-hwe-22.04Ubuntu

Fixed in:6.5.0.41.41.1~22.04.1USN-6818-1

linux-image-nvidiaUbuntu

Fixed in:5.15.0.1054.54USN-6766-1

linux-image-nvidia-6.5Ubuntu

Fixed in:6.5.0.1021.29USN-6818-3

linux-image-nvidia-64k-6.5Ubuntu

Fixed in:6.5.0.1021.29USN-6818-3

linux-image-nvidia-64k-hwe-22.04Ubuntu

Fixed in:6.5.0.1021.29USN-6818-3

linux-image-nvidia-hwe-22.04Ubuntu

Fixed in:6.5.0.1021.29USN-6818-3

linux-image-nvidia-lowlatencyUbuntu

Fixed in:5.15.0.1054.54USN-6766-1

linux-image-oem-20.04Ubuntu

Fixed in:5.15.0.106.116~20.04.1USN-6766-2

linux-image-oem-20.04bUbuntu

Fixed in:5.15.0.106.116~20.04.1USN-6766-2

linux-image-oem-20.04cUbuntu

Fixed in:5.15.0.106.116~20.04.1USN-6766-2

linux-image-oem-20.04dUbuntu

Fixed in:5.15.0.106.116~20.04.1USN-6766-2

linux-image-oem-22.04Ubuntu

Fixed in:6.5.0.1024.26USN-6819-3

linux-image-oem-22.04aUbuntu

Fixed in:6.5.0.1024.26USN-6819-3

linux-image-oem-22.04bUbuntu

Fixed in:6.5.0.1024.26USN-6819-3

linux-image-oem-22.04cUbuntu

Fixed in:6.5.0.1024.26USN-6819-3

linux-image-oem-22.04dUbuntu

Fixed in:6.5.0.1024.26USN-6819-3

linux-image-oracleUbuntu

Fixed in:5.15.0.1059.65~20.04.1USN-6766-1

Fixed in:6.5.0.1024.24~22.04.1USN-6819-4

Fixed in:6.5.0.1024.26USN-6819-2

linux-image-oracle-64kUbuntu

Fixed in:6.5.0.1024.24~22.04.1USN-6819-4

Fixed in:6.5.0.1024.26USN-6819-2

linux-image-oracle-lts-22.04Ubuntu

Fixed in:5.15.0.1059.55USN-6766-1

linux-image-raspiUbuntu

Fixed in:5.15.0.1054.52USN-6766-2

Fixed in:6.5.0.1018.19USN-6818-1

linux-image-raspi-nolpaeUbuntu

Fixed in:5.15.0.1054.52USN-6766-2

Fixed in:6.5.0.1018.19USN-6818-1

linux-image-starfiveUbuntu

Fixed in:6.5.0.1015.16~22.04.1USN-6819-1

Fixed in:6.5.0.1015.17USN-6819-1

linux-image-virtualUbuntu

Fixed in:5.15.0.106.106USN-6766-1

Fixed in:6.5.0.41.41USN-6818-1

linux-image-virtual-hwe-20.04Ubuntu

Fixed in:5.15.0.106.116~20.04.1USN-6766-2

linux-image-virtual-hwe-22.04Ubuntu

Fixed in:6.5.0.41.41~22.04.2USN-6818-4

linux-intel-iotgUbuntu

Fixed in:5.15.0-1057.63USN-6795-1

linux-intel-iotg-5.15Ubuntu

Fixed in:5.15.0-1058.64~20.04.1USN-6828-1

linux-kvmUbuntu

Fixed in:5.15.0-1058.63USN-6766-1

linux-laptopUbuntu

Fixed in:6.5.0-1017.20USN-6818-2

linux-lowlatencyUbuntu

Fixed in:5.15.0-106.116USN-6766-1

Fixed in:6.5.0-41.41.1USN-6818-1

linux-lowlatency-hwe-5.15Ubuntu

Fixed in:5.15.0-106.116~20.04.1USN-6766-1

linux-lowlatency-hwe-6.5Ubuntu

Fixed in:6.5.0-41.41.1~22.04.1USN-6818-1

linux-nvidiaUbuntu

Fixed in:5.15.0-1054.55USN-6766-1

linux-nvidia-6.5Ubuntu

Fixed in:6.5.0-1021.22USN-6818-3

linux-oem-6.5Ubuntu

Fixed in:6.5.0-1024.25USN-6819-3

linux-oracleUbuntu

Fixed in:5.15.0-1059.65USN-6766-1

Fixed in:6.5.0-1024.24USN-6819-2

linux-oracle-5.15Ubuntu

Fixed in:5.15.0-1059.65~20.04.1USN-6766-1

linux-oracle-6.5Ubuntu

Fixed in:6.5.0-1024.24~22.04.1USN-6819-4

linux-raspiUbuntu

Fixed in:5.15.0-1054.57USN-6766-2

Fixed in:6.5.0-1018.21USN-6818-1

linux-starfiveUbuntu

Fixed in:6.5.0-1015.16USN-6819-1

linux-starfive-6.5Ubuntu

Fixed in:6.5.0-1015.16~22.04.1USN-6819-1

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 InteractionRequired

ScopeUnchanged

Impact

ConfidentialityNone

IntegrityNone

AvailabilityHigh

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

Exploit Intelligence

0.23%probability of exploitation in 30 days

13thpercentile

Low risk: more likely to be exploited than 13% of all known CVEs.

References

Patch5

Related Vulnerabilities

Other CWE-787 (Out-of-bounds Write) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2025-22457	Critical	9.0	100%	KEV + Ransom	Fix
CVE-2025-0282	Critical	9.0	100%	KEV + Ransom	-
CVE-2015-3113	Critical	9.8	100%	KEV	Fix
CVE-2021-20038	Critical	9.8	100%	KEV + Ransom	-
CVE-2023-4863	High	8.8	100%	KEV	Fix
CVE-2020-16040	Medium	6.5	100%	-	Fix

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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 2025-03-17.