Executive Summary



This vulnerability is currently undergoing analysis and not all information is available. Please check back soon to view the completed vulnerability summary
Informations
Name CVE-2024-57947 First vendor Publication 2025-01-23
Vendor Cve Last vendor Modification 2025-01-23

Security-Database Scoring CVSS v3

Cvss vector : N/A
Overall CVSS Score NA
Base Score NA Environmental Score NA
impact SubScore NA Temporal Score NA
Exploitabality Sub Score NA
 
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Security-Database Scoring CVSS v2

Cvss vector :
Cvss Base Score N/A Attack Range N/A
Cvss Impact Score N/A Attack Complexity N/A
Cvss Expoit Score N/A Authentication N/A
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Detail

In the Linux kernel, the following vulnerability has been resolved:

netfilter: nf_set_pipapo: fix initial map fill

The initial buffer has to be inited to all-ones, but it must restrict it to the size of the first field, not the total field size.

After each round in the map search step, the result and the fill map are swapped, so if we have a set where f->bsize of the first element is smaller than m->bsize_max, those one-bits are leaked into future rounds result map.

This makes pipapo find an incorrect matching results for sets where first field size is not the largest.

Followup patch adds a test case to nft_concat_range.sh selftest script.

Thanks to Stefano Brivio for pointing out that we need to zero out the remainder explicitly, only correcting memset() argument isn't enough.

Original Source

Url : http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2024-57947

Sources (Detail)

https://git.kernel.org/stable/c/69b6a67f7052905e928d75a0c5871de50e686986
https://git.kernel.org/stable/c/791a615b7ad2258c560f91852be54b0480837c93
https://git.kernel.org/stable/c/8058c88ac0df21239daee54b5934d5c80ca9685f
https://git.kernel.org/stable/c/957a4d1c4c5849e4515c9fb4db21bf85318103dc
https://git.kernel.org/stable/c/9625c46ce6fd4f922595a4b32b1de5066d70464f
Source Url

Alert History

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0
Date Informations
2025-01-23 17:20:30
  • First insertion