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National Vulnerability Database

National Vulnerability Database

NVD

National Vulnerability Database
  1. Vulnerabilities
NOTICE UPDATED - May, 29th 2024

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CVE-2024-39480 Detail

Description

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.


Metrics

 
NVD enrichment efforts reference publicly available information to associate vector strings. CVSS information contributed by other sources is also displayed.
CVSS 4.0 Severity and Vector Strings:

NIST CVSS score
NIST: NVD
N/A
NVD assessment not yet provided.

References to Advisories, Solutions, and Tools

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Hyperlink Resource
https://git.kernel.org/stable/c/107e825cc448b7834b31e8b1b3cf0f57426d46d5 Mailing List  Patch 
https://git.kernel.org/stable/c/33d9c814652b971461d1e30bead6792851c209e7 Mailing List  Patch 
https://git.kernel.org/stable/c/cfdc2fa4db57503bc6d3817240547c8ddc55fa96 Mailing List  Patch 
https://git.kernel.org/stable/c/ddd2972d8e2dee3b33e8121669d55def59f0be8a Mailing List  Patch 
https://git.kernel.org/stable/c/e9730744bf3af04cda23799029342aa3cddbc454 Mailing List  Patch 
https://git.kernel.org/stable/c/f636a40834d22e5e3fc748f060211879c056cd33 Mailing List  Patch 
https://git.kernel.org/stable/c/f694da720dcf795dc3eb97bf76d220213f76aaa7 Mailing List  Patch 
https://git.kernel.org/stable/c/fb824a99e148ff272a53d71d84122728b5f00992 Mailing List  Patch 

Weakness Enumeration

CWE-ID CWE Name Source
CWE-120 Buffer Copy without Checking Size of Input ('Classic Buffer Overflow') cwe source acceptance level NIST  

Known Affected Software Configurations Switch to CPE 2.2

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Change History

2 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2024-39480
NVD Published Date:
07/05/2024
NVD Last Modified:
07/08/2024
Source:
kernel.org