Log in Start free

Vulnerability · Published Apr 8, 2024 · Assigned by Linux

CVE-2024-26811ksmbd: validate payload size in ipc response

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 0.8% (higher than 57% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.1)9.8Critical
Exploit odds (30 days)0.8%top 43.4% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known

Official description

In the Linux kernel, the following vulnerability has been resolved: ksmbd: validate payload size in ipc response If installing malicious ksmbd-tools, ksmbd.mountd can return invalid ipc response to ksmbd kernel server. ksmbd should validate payload size of ipc response from ksmbd.mountd to avoid memory overrun or slab-out-of-bounds. This patch validate 3 ipc response that has payload.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
Debian:12linux6.1.85-1DEBIAN-CVE-2024-26811
Debian:12linux6.1.85-1DSA-5658-1
Debian:13linux6.8.9-1DEBIAN-CVE-2024-26811
Debian:14linux6.8.9-1DEBIAN-CVE-2024-26811
Ubuntu:22.04:LTSlinux5.15.0-116.126UBUNTU-CVE-2024-26811
Ubuntu:22.04:LTSlinux5.15.0-116.126USN-6898-1
Ubuntu:24.04:LTSlinux6.8.0-38.38USN-6893-1
Ubuntu:24.04:LTSlinux6.8.0-38.38UBUNTU-CVE-2024-26811
Ubuntu:22.04:LTSlinux-allwinner-5.19no fix listedUBUNTU-CVE-2024-26811
Ubuntu:22.04:LTSlinux-aws5.15.0-1065.71USN-6898-3
Ubuntu:22.04:LTSlinux-aws5.15.0-1065.71UBUNTU-CVE-2024-26811
Ubuntu:24.04:LTSlinux-aws6.8.0-1011.12UBUNTU-CVE-2024-26811
Ubuntu:24.04:LTSlinux-aws6.8.0-1011.12USN-6893-3
Ubuntu:22.04:LTSlinux-aws-5.19no fix listedUBUNTU-CVE-2024-26811
Ubuntu:22.04:LTSlinux-aws-6.2no fix listedUBUNTU-CVE-2024-26811
Ubuntu:22.04:LTSlinux-aws-6.5no fix listedUBUNTU-CVE-2024-26811
Ubuntu:22.04:LTSlinux-aws-6.86.8.0-1011.12~22.04.1UBUNTU-CVE-2024-26811
Ubuntu:22.04:LTSlinux-azure5.15.0-1068.77USN-6917-1
Ubuntu:22.04:LTSlinux-azure5.15.0-1068.77UBUNTU-CVE-2024-26811
Ubuntu:24.04:LTSlinux-azure6.8.0-1010.10USN-6893-1
Ubuntu:24.04:LTSlinux-azure6.8.0-1010.10UBUNTU-CVE-2024-26811
Ubuntu:22.04:LTSlinux-azure-5.19no fix listedUBUNTU-CVE-2024-26811
Ubuntu:22.04:LTSlinux-azure-6.2no fix listedUBUNTU-CVE-2024-26811
Ubuntu:22.04:LTSlinux-azure-6.5no fix listedUBUNTU-CVE-2024-26811
Ubuntu:22.04:LTSlinux-azure-6.86.8.0-1010.10~22.04.1UBUNTU-CVE-2024-26811
Ubuntu:22.04:LTSlinux-azure-fde5.15.0-1068.77.1UBUNTU-CVE-2024-26811
Ubuntu:22.04:LTSlinux-azure-fde5.15.0-1068.77.1USN-6917-1
Ubuntu:22.04:LTSlinux-azure-fde-5.19no fix listedUBUNTU-CVE-2024-26811
Ubuntu:22.04:LTSlinux-azure-fde-6.2no fix listedUBUNTU-CVE-2024-26811
Ubuntu:22.04:LTSlinux-gcp5.15.0-1064.72UBUNTU-CVE-2024-26811
Ubuntu:22.04:LTSlinux-gcp5.15.0-1064.72USN-6898-1
Ubuntu:24.04:LTSlinux-gcp6.8.0-1010.11UBUNTU-CVE-2024-26811
Ubuntu:24.04:LTSlinux-gcp6.8.0-1010.11USN-6893-1
Ubuntu:22.04:LTSlinux-gcp-5.19no fix listedUBUNTU-CVE-2024-26811
Ubuntu:22.04:LTSlinux-gcp-6.2no fix listedUBUNTU-CVE-2024-26811
Ubuntu:22.04:LTSlinux-gcp-6.5no fix listedUBUNTU-CVE-2024-26811
Ubuntu:22.04:LTSlinux-gke5.15.0-1062.68UBUNTU-CVE-2024-26811
Ubuntu:22.04:LTSlinux-gke5.15.0-1062.68USN-6898-1
Ubuntu:24.04:LTSlinux-gke6.8.0-1006.9USN-6893-2
Ubuntu:24.04:LTSlinux-gke6.8.0-1006.9UBUNTU-CVE-2024-26811
Ubuntu:22.04:LTSlinux-gkeop5.15.0-1048.55USN-6898-1
Ubuntu:22.04:LTSlinux-gkeop5.15.0-1048.55UBUNTU-CVE-2024-26811
Ubuntu:22.04:LTSlinux-hwe-5.19no fix listedUBUNTU-CVE-2024-26811
Ubuntu:22.04:LTSlinux-hwe-6.2no fix listedUBUNTU-CVE-2024-26811
Ubuntu:22.04:LTSlinux-hwe-6.5no fix listedUBUNTU-CVE-2024-26811
Ubuntu:22.04:LTSlinux-ibm5.15.0-1058.61USN-6898-1
Ubuntu:22.04:LTSlinux-ibm5.15.0-1058.61UBUNTU-CVE-2024-26811
Ubuntu:24.04:LTSlinux-ibm6.8.0-1008.8UBUNTU-CVE-2024-26811
Ubuntu:24.04:LTSlinux-ibm6.8.0-1008.8USN-6893-1
Ubuntu:24.04:LTSlinux-intel6.8.0-1007.14USN-6893-1
Ubuntu:24.04:LTSlinux-intel6.8.0-1007.14UBUNTU-CVE-2024-26811
Ubuntu:22.04:LTSlinux-intel-iotg5.15.0-1060.66UBUNTU-CVE-2024-26811
Ubuntu:22.04:LTSlinux-intel-iotg5.15.0-1060.66USN-6898-1
Ubuntu:22.04:LTSlinux-kvm5.15.0-1062.67USN-6898-1
Ubuntu:22.04:LTSlinux-kvm5.15.0-1062.67UBUNTU-CVE-2024-26811
Ubuntu:22.04:LTSlinux-lowlatency5.15.0-116.126USN-6898-2
Ubuntu:22.04:LTSlinux-lowlatency5.15.0-116.126UBUNTU-CVE-2024-26811
Ubuntu:24.04:LTSlinux-lowlatency6.8.0-38.38.1UBUNTU-CVE-2024-26811
Ubuntu:24.04:LTSlinux-lowlatency6.8.0-38.38.1USN-6893-1
Ubuntu:22.04:LTSlinux-lowlatency-hwe-5.19no fix listedUBUNTU-CVE-2024-26811
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.2no fix listedUBUNTU-CVE-2024-26811
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.5no fix listedUBUNTU-CVE-2024-26811
Ubuntu:22.04:LTSlinux-nvidia5.15.0-1060.61USN-6898-1
Ubuntu:22.04:LTSlinux-nvidia5.15.0-1060.61UBUNTU-CVE-2024-26811
Ubuntu:24.04:LTSlinux-nvidia6.8.0-1009.9USN-6893-2
Ubuntu:24.04:LTSlinux-nvidia6.8.0-1009.9UBUNTU-CVE-2024-26811
Ubuntu:22.04:LTSlinux-nvidia-6.2no fix listedUBUNTU-CVE-2024-26811
Ubuntu:22.04:LTSlinux-nvidia-6.5no fix listedUBUNTU-CVE-2024-26811
Ubuntu:22.04:LTSlinux-nvidia-6.86.8.0-1009.9~22.04.1UBUNTU-CVE-2024-26811
Ubuntu:22.04:LTSlinux-nvidia-tegra5.15.0-1026.26UBUNTU-CVE-2024-26811
Ubuntu:22.04:LTSlinux-nvidia-tegra-igx5.15.0-1015.15UBUNTU-CVE-2024-26811
Ubuntu:22.04:LTSlinux-oem-5.17no fix listedUBUNTU-CVE-2024-26811
Ubuntu:22.04:LTSlinux-oem-6.0no fix listedUBUNTU-CVE-2024-26811
Ubuntu:22.04:LTSlinux-oem-6.1no fix listedUBUNTU-CVE-2024-26811
Ubuntu:22.04:LTSlinux-oem-6.5no fix listedUBUNTU-CVE-2024-26811
Ubuntu:24.04:LTSlinux-oem-6.86.8.0-1008.8USN-6893-1
Ubuntu:24.04:LTSlinux-oem-6.86.8.0-1008.8UBUNTU-CVE-2024-26811
Ubuntu:22.04:LTSlinux-oracle5.15.0-1063.69UBUNTU-CVE-2024-26811
Ubuntu:22.04:LTSlinux-oracle5.15.0-1063.69USN-6898-1
Ubuntu:24.04:LTSlinux-oracle6.8.0-1008.8USN-6918-1
Ubuntu:24.04:LTSlinux-oracle6.8.0-1008.8UBUNTU-CVE-2024-26811
Ubuntu:22.04:LTSlinux-oracle-6.5no fix listedUBUNTU-CVE-2024-26811
Ubuntu:22.04:LTSlinux-oracle-6.86.8.0-1008.8~22.04.1UBUNTU-CVE-2024-26811
Ubuntu:22.04:LTSlinux-raspi5.15.0-1058.61UBUNTU-CVE-2024-26811
Ubuntu:24.04:LTSlinux-raspi6.8.0-1007.7USN-6893-1
Ubuntu:24.04:LTSlinux-raspi6.8.0-1007.7UBUNTU-CVE-2024-26811
Ubuntu:22.04:LTSlinux-realtimeno fix listedUBUNTU-CVE-2024-26811
Ubuntu:22.04:LTSlinux-riscvno fix listedUBUNTU-CVE-2024-26811
Ubuntu:24.04:LTSlinux-riscv6.8.0-38.38.1UBUNTU-CVE-2024-26811
Ubuntu:22.04:LTSlinux-riscv-5.19no fix listedUBUNTU-CVE-2024-26811
Ubuntu:22.04:LTSlinux-riscv-6.5no fix listedUBUNTU-CVE-2024-26811
Ubuntu:22.04:LTSlinux-starfive-5.19no fix listedUBUNTU-CVE-2024-26811
Ubuntu:22.04:LTSlinux-starfive-6.2no fix listedUBUNTU-CVE-2024-26811
Ubuntu:22.04:LTSlinux-starfive-6.5no fix listedUBUNTU-CVE-2024-26811
Ubuntu:22.04:LTSlinux-xilinx-zynqmp5.15.0-1035.39USN-7019-1
Ubuntu:22.04:LTSlinux-xilinx-zynqmp5.15.0-1035.39UBUNTU-CVE-2024-26811

Affected products (as reported)

VendorProductVersions
Linux Linux 0626e6641f6b467447c81dd7678a69c66f7746cf – before 88b7f1143b15b29cccb8392b4f38e75b7bb3e3000626e6641f6b467447c81dd7678a69c66f7746cf – before 51a6c2af9d20203ddeeaf73314ba8854b38d01bd0626e6641f6b467447c81dd7678a69c66f7746cf – before a637fabac554270a851033f5ab402ecb90bc479c0626e6641f6b467447c81dd7678a69c66f7746cf – before 76af689a45aa44714b46d1a7de4ffdf851ded8960626e6641f6b467447c81dd7678a69c66f7746cf – before a677ebd8ca2f2632ccdecbad7b87641274e15aac
Linux Linux 5.15

References