CVE - CVE-2024-57947

CVE-ID
CVE-2024-57947	Learn more at National Vulnerability Database (NVD) • CVSS Severity Rating • Fix Information • Vulnerable Software Versions • SCAP Mappings • CPE Information
Description
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.
References
Note: References are provided for the convenience of the reader to help distinguish between vulnerabilities. The list is not intended to be complete.
MISC:https://git.kernel.org/stable/c/69b6a67f7052905e928d75a0c5871de50e686986 URL:https://git.kernel.org/stable/c/69b6a67f7052905e928d75a0c5871de50e686986 MISC:https://git.kernel.org/stable/c/791a615b7ad2258c560f91852be54b0480837c93 URL:https://git.kernel.org/stable/c/791a615b7ad2258c560f91852be54b0480837c93 MISC:https://git.kernel.org/stable/c/8058c88ac0df21239daee54b5934d5c80ca9685f URL:https://git.kernel.org/stable/c/8058c88ac0df21239daee54b5934d5c80ca9685f MISC:https://git.kernel.org/stable/c/957a4d1c4c5849e4515c9fb4db21bf85318103dc URL:https://git.kernel.org/stable/c/957a4d1c4c5849e4515c9fb4db21bf85318103dc MISC:https://git.kernel.org/stable/c/9625c46ce6fd4f922595a4b32b1de5066d70464f URL:https://git.kernel.org/stable/c/9625c46ce6fd4f922595a4b32b1de5066d70464f
Assigning CNA
kernel.org
Date Record Created
20250119	Disclaimer: The record creation date may reflect when the CVE ID was allocated or reserved, and does not necessarily indicate when this vulnerability was discovered, shared with the affected vendor, publicly disclosed, or updated in CVE.
Phase (Legacy)
Assigned (20250119)
Votes (Legacy)

Comments (Legacy)

Proposed (Legacy)
N/A
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