What is CVE-2024-39480?

CVE-2024-39480 is a High severity Linux kernel vulnerability with a CVSS score of 7.8 out of 10. CVE-2024-39480 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2024-39480?

CVE-2024-39480 has a CVSS score of 7.8 out of 10, rated High severity. The vector string is CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

Is there a patch available for CVE-2024-39480?

No patch is currently available for CVE-2024-39480. Monitor the NIST NVD and your Linux distribution's security advisories for updates.

Is CVE-2024-39480 actively exploited?

CVE-2024-39480 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

CVE-2024-39480

High

In the Linux kernel, the following vulnerability has been resolved: kdb: Fix buffer overflow during tab-complete Currently, when the user attempts symbol completion with the Tab key, kdb will use strncpy() to insert the completed symbol into the command buffer. Unfortunately it passes the size of the source buffer rather than the destination to strncpy() with predictably horrible results. Most obviously if the command buffer is already full but cp, the cursor position, is in the middle of the buffer, then we will write past the end of the supplied buffer. Fix this by replacing the dubious strncpy() calls with memmove()/memcpy() calls plus explicit boundary checks to make sure we have enough space before we start moving characters around.

Package Linux Kernel

Published 2024-07-05

Last modified 2024-11-21

CVSS version 3.1

Patch available

Awaiting data

CVSS 3.1 score

7.8

out of 10

High

Attack Vector

Local

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Vector string

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

Weakness type

CWE-120

CVE-2024-39480 is classified as CWE-120

See CWE-120 on MITRE CWE for full details on this weakness type.

References

The following references provide additional information about CVE-2024-39480 including vendor advisories, patch commits, exploit details, and third-party analysis. Links are sourced from the NIST NVD database.

Kernel patch commit
https://git.kernel.org/stable/c/107e825cc448b7834b31e8b1b3cf0f57426d46d5
Patch
Kernel patch commit
https://git.kernel.org/stable/c/33d9c814652b971461d1e30bead6792851c209e7
Patch
Kernel patch commit
https://git.kernel.org/stable/c/cfdc2fa4db57503bc6d3817240547c8ddc55fa96
Patch

8 patch commits total View all on NVD

Details

CVE ID CVE-2024-39480

Severity High

CVSS score 7.8 / 10

CVSS version 3.1

Published 2024-07-05

Modified 2024-11-21

KEV No

Patch Awaiting data

Package linux

Frequently asked questions

What is CVE-2024-39480?

CVE-2024-39480 is a High severity Linux kernel vulnerability with a CVSS score of 7.8 out of 10 . CVE-2024-39480 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2024-39480?

CVE-2024-39480 has a CVSS score of 7.8 out of 10, rated High severity (CVSS 3.1). The vector string is CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
Is there a patch available for CVE-2024-39480?

No patch is currently available for CVE-2024-39480. Monitor the NIST NVD and your Linux distribution's security advisories for updates.
Is CVE-2024-39480 actively exploited?

No — CVE-2024-39480 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.