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Vulnerability · Published Jan 23, 2025 · Assigned by Linux

CVE-2024-57947netfilter: nf_set_pipapo: fix initial map fill

Critical 9.8

In plain English

A critical-severity security flaw in Linux from Linux. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.4% (higher than 39% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.1)9.8Critical
Exploit odds (30 days)0.4%top 61.3% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known

Official 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.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
Debian:12linux6.1.106-1DEBIAN-CVE-2024-57947
Debian:13linux6.10.3-1DEBIAN-CVE-2024-57947
Debian:14linux6.10.3-1DEBIAN-CVE-2024-57947
Ubuntu:22.04:LTSlinux5.15.0-125.135UBUNTU-CVE-2024-57947
Ubuntu:24.04:LTSlinux6.8.0-50.51UBUNTU-CVE-2024-57947
Ubuntu:22.04:LTSlinux-allwinner-5.19no fix listedUBUNTU-CVE-2024-57947
Ubuntu:22.04:LTSlinux-aws5.15.0-1072.78UBUNTU-CVE-2024-57947
Ubuntu:24.04:LTSlinux-aws6.8.0-1020.22UBUNTU-CVE-2024-57947
Ubuntu:22.04:LTSlinux-aws-5.19no fix listedUBUNTU-CVE-2024-57947
Ubuntu:22.04:LTSlinux-aws-6.2no fix listedUBUNTU-CVE-2024-57947
Ubuntu:22.04:LTSlinux-aws-6.5no fix listedUBUNTU-CVE-2024-57947
Ubuntu:22.04:LTSlinux-aws-6.86.8.0-1020.22~22.04.1UBUNTU-CVE-2024-57947
Ubuntu:22.04:LTSlinux-azure5.15.0-1075.84UBUNTU-CVE-2024-57947
Ubuntu:24.04:LTSlinux-azure6.8.0-1020.23UBUNTU-CVE-2024-57947
Ubuntu:22.04:LTSlinux-azure-5.19no fix listedUBUNTU-CVE-2024-57947
Ubuntu:22.04:LTSlinux-azure-6.2no fix listedUBUNTU-CVE-2024-57947
Ubuntu:22.04:LTSlinux-azure-6.5no fix listedUBUNTU-CVE-2024-57947
Ubuntu:22.04:LTSlinux-azure-6.86.8.0-1020.23~22.04.1UBUNTU-CVE-2024-57947
Ubuntu:22.04:LTSlinux-azure-fde5.15.0-1076.85.1UBUNTU-CVE-2024-57947
Ubuntu:22.04:LTSlinux-azure-fde-5.19no fix listedUBUNTU-CVE-2024-57947
Ubuntu:22.04:LTSlinux-azure-fde-6.2no fix listedUBUNTU-CVE-2024-57947
Ubuntu:22.04:LTSlinux-gcp5.15.0-1071.79UBUNTU-CVE-2024-57947
Ubuntu:24.04:LTSlinux-gcp6.8.0-1019.21UBUNTU-CVE-2024-57947
Ubuntu:22.04:LTSlinux-gcp-5.19no fix listedUBUNTU-CVE-2024-57947
Ubuntu:22.04:LTSlinux-gcp-6.2no fix listedUBUNTU-CVE-2024-57947
Ubuntu:22.04:LTSlinux-gcp-6.5no fix listedUBUNTU-CVE-2024-57947
Ubuntu:22.04:LTSlinux-gcp-6.86.8.0-1019.21~22.04.1UBUNTU-CVE-2024-57947
Ubuntu:22.04:LTSlinux-gke5.15.0-1069.75UBUNTU-CVE-2024-57947
Ubuntu:24.04:LTSlinux-gke6.8.0-1015.19UBUNTU-CVE-2024-57947
Ubuntu:22.04:LTSlinux-gkeop5.15.0-1055.62UBUNTU-CVE-2024-57947
Ubuntu:24.04:LTSlinux-gkeop6.8.0-1002.4UBUNTU-CVE-2024-57947
Ubuntu:22.04:LTSlinux-hwe-5.19no fix listedUBUNTU-CVE-2024-57947
Ubuntu:22.04:LTSlinux-hwe-6.2no fix listedUBUNTU-CVE-2024-57947
Ubuntu:22.04:LTSlinux-hwe-6.5no fix listedUBUNTU-CVE-2024-57947
Ubuntu:22.04:LTSlinux-hwe-6.86.8.0-50.51~22.04.1UBUNTU-CVE-2024-57947
Ubuntu:22.04:LTSlinux-ibm5.15.0-1065.68UBUNTU-CVE-2024-57947
Ubuntu:24.04:LTSlinux-ibm6.8.0-1017.17UBUNTU-CVE-2024-57947
Ubuntu:22.04:LTSlinux-ibm-6.86.8.0-1017.17~22.04.1UBUNTU-CVE-2024-57947
Ubuntu:22.04:LTSlinux-intel-iotg5.15.0-1067.73UBUNTU-CVE-2024-57947
Ubuntu:22.04:LTSlinux-kvm5.15.0-1069.74UBUNTU-CVE-2024-57947
Ubuntu:22.04:LTSlinux-lowlatency5.15.0-125.135UBUNTU-CVE-2024-57947
Ubuntu:24.04:LTSlinux-lowlatency6.8.0-50.51.1UBUNTU-CVE-2024-57947
Ubuntu:22.04:LTSlinux-lowlatency-hwe-5.19no fix listedUBUNTU-CVE-2024-57947
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.2no fix listedUBUNTU-CVE-2024-57947
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.5no fix listedUBUNTU-CVE-2024-57947
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.86.8.0-50.51.1~22.04.1UBUNTU-CVE-2024-57947
Ubuntu:22.04:LTSlinux-nvidia5.15.0-1067.68UBUNTU-CVE-2024-57947
Ubuntu:24.04:LTSlinux-nvidia6.8.0-1019.21UBUNTU-CVE-2024-57947
Ubuntu:22.04:LTSlinux-nvidia-6.2no fix listedUBUNTU-CVE-2024-57947
Ubuntu:22.04:LTSlinux-nvidia-6.5no fix listedUBUNTU-CVE-2024-57947
Ubuntu:22.04:LTSlinux-nvidia-6.86.8.0-1019.21~22.04.1UBUNTU-CVE-2024-57947
Ubuntu:24.04:LTSlinux-nvidia-lowlatency6.8.0-1019.21.1UBUNTU-CVE-2024-57947
Ubuntu:22.04:LTSlinux-nvidia-tegra5.15.0-1032.32UBUNTU-CVE-2024-57947
Ubuntu:22.04:LTSlinux-nvidia-tegra-igx5.15.0-1020.20UBUNTU-CVE-2024-57947
Ubuntu:22.04:LTSlinux-oem-5.17no fix listedUBUNTU-CVE-2024-57947
Ubuntu:22.04:LTSlinux-oem-6.0no fix listedUBUNTU-CVE-2024-57947
Ubuntu:22.04:LTSlinux-oem-6.1no fix listedUBUNTU-CVE-2024-57947
Ubuntu:22.04:LTSlinux-oem-6.5no fix listedUBUNTU-CVE-2024-57947
Ubuntu:24.04:LTSlinux-oem-6.86.8.0-1018.18UBUNTU-CVE-2024-57947
Ubuntu:22.04:LTSlinux-oracle5.15.0-1070.76UBUNTU-CVE-2024-57947
Ubuntu:24.04:LTSlinux-oracle6.8.0-1017.18UBUNTU-CVE-2024-57947
Ubuntu:22.04:LTSlinux-oracle-6.5no fix listedUBUNTU-CVE-2024-57947
Ubuntu:22.04:LTSlinux-oracle-6.86.8.0-1017.18~22.04.1UBUNTU-CVE-2024-57947
Ubuntu:22.04:LTSlinux-raspi5.15.0-1065.68UBUNTU-CVE-2024-57947
Ubuntu:24.04:LTSlinux-raspi6.8.0-1016.18UBUNTU-CVE-2024-57947
Ubuntu:22.04:LTSlinux-realtimeno fix listedUBUNTU-CVE-2024-57947
Ubuntu:22.04:LTSlinux-riscvno fix listedUBUNTU-CVE-2024-57947
Ubuntu:24.04:LTSlinux-riscv6.8.0-50.51.1UBUNTU-CVE-2024-57947
Ubuntu:22.04:LTSlinux-riscv-5.19no fix listedUBUNTU-CVE-2024-57947
Ubuntu:22.04:LTSlinux-riscv-6.5no fix listedUBUNTU-CVE-2024-57947
Ubuntu:22.04:LTSlinux-riscv-6.86.8.0-50.51.1~22.04.1UBUNTU-CVE-2024-57947
Ubuntu:22.04:LTSlinux-starfive-5.19no fix listedUBUNTU-CVE-2024-57947
Ubuntu:22.04:LTSlinux-starfive-6.2no fix listedUBUNTU-CVE-2024-57947
Ubuntu:22.04:LTSlinux-starfive-6.5no fix listedUBUNTU-CVE-2024-57947
Ubuntu:24.04:LTSlinux-xilinx6.8.0-1017.18UBUNTU-CVE-2024-57947
Ubuntu:22.04:LTSlinux-xilinx-zynqmp5.15.0-1038.42UBUNTU-CVE-2024-57947

Affected products (as reported)

VendorProductVersions
Linux Linux 3c4287f62044a90e73a561aa05fc46e62da173da – before 77bf0c4ab928ca4c9a99311f4f70ba0c17fecba93c4287f62044a90e73a561aa05fc46e62da173da – before 957a4d1c4c5849e4515c9fb4db21bf85318103dc3c4287f62044a90e73a561aa05fc46e62da173da – before 9625c46ce6fd4f922595a4b32b1de5066d70464f3c4287f62044a90e73a561aa05fc46e62da173da – before 69b6a67f7052905e928d75a0c5871de50e6869863c4287f62044a90e73a561aa05fc46e62da173da – before 8058c88ac0df21239daee54b5934d5c80ca9685f3c4287f62044a90e73a561aa05fc46e62da173da – before 791a615b7ad2258c560f91852be54b0480837c93
Linux Linux 5.6

References