CVE-2022-48987

Medium

In the Linux kernel, the following vulnerability has been resolved: media: v4l2-dv-timings.c: fix too strict blanking sanity checks Sanity checks were added to verify the v4l2_bt_timings blanking fields in order to avoid integer overflows when userspace passes weird values. But that assumed that userspace would correctly fill in the front porch, backporch and sync values, but sometimes all you know is the total blanking, which is then assigned to just one of these fields. And that can fail with these checks. So instead set a maximum for the total horizontal and vertical blanking and check that each field remains below that. That is still sufficient to avoid integer overflows, but it also allows for more flexibility in how userspace fills in these fields.

Package Linux Kernel
Published 2024-10-21
Last modified 2024-11-01
CVSS version 3.1
Patch available
Not yet patched

CVSS 3.1 score

5.5

out of 10
Medium
Attack Vector
Local
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
Low
Integrity
None
Availability
High
Vector string
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Weakness type

CWE-190

CVE-2022-48987 is a Integer Overflow vulnerability

What is Integer Overflow?

The product performs a calculation that can produce an integer overflow, leading to unexpected values. Learn more on MITRE CWE

Affected versions

Linux kernel versions 4.9.332, 4.14.298, 4.19.264, 5.4.223, 5.10.153, 5.15.77, 6.0.7 and later are affected. No fixed version recorded yet.

Affected from
≥ 4.9.332 ≥ 4.14.298 ≥ 4.19.264 ≥ 5.4.223 ≥ 5.10.153 ≥ 5.15.77 ≥ 6.0.7

References

The following references provide additional information about CVE-2022-48987 including vendor advisories, patch commits, exploit details, and third-party analysis. Links are sourced from the NIST NVD database.

8 patch commits total View all on NVD

Frequently asked questions

  • What is CVE-2022-48987?

    CVE-2022-48987 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10 , classified as an Integer Overflow flaw (CWE-190) . It affects Linux kernel versions from 4.9.332 onward . CVE-2022-48987 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

  • What is the CVSS score for CVE-2022-48987?

    CVE-2022-48987 has a CVSS score of 5.5 out of 10, rated Medium severity (CVSS 3.1). The vector string is CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H .

  • Is there a patch available for CVE-2022-48987?

    No patch is currently available for CVE-2022-48987. Monitor the NIST NVD and your Linux distribution's security advisories for updates.

  • Is CVE-2022-48987 actively exploited?

    No — CVE-2022-48987 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.

  • What is Integer Overflow (CWE-190)?

    The product performs a calculation that can produce an integer overflow, leading to unexpected values. View CWE-190 on MITRE CWE →

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