Log in Start free

Vulnerability · Published Jul 29, 2024 · Assigned by Linux

CVE-2024-42098crypto: ecdh - explicitly zeroize private_key

Medium 5.5

In plain English

A medium-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 0.2% (higher than 11% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS NVD)5.5Medium
Exploit odds (30 days)0.2%top 88.7% 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: crypto: ecdh - explicitly zeroize private_key private_key is overwritten with the key parameter passed in by the caller (if present), or alternatively a newly generated private key. However, it is possible that the caller provides a key (or the newly generated key) which is shorter than the previous key. In that scenario, some key material from the previous key would not be overwritten. The easiest solution is to explicitly zeroize the entire private_key array first. Note that this patch slightly changes the behavior of this function: previously, if the ecc_gen_privkey failed, the old private_key would remain. Now, the private_key is always zeroized. This behavior is consistent with the case where params.key is set and ecc_is_key_valid fails.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
Debian:12linux6.1.98-1DEBIAN-CVE-2024-42098
Debian:13linux6.9.8-1DEBIAN-CVE-2024-42098
Debian:14linux6.9.8-1DEBIAN-CVE-2024-42098
Ubuntu:22.04:LTSlinux5.15.0-121.131UBUNTU-CVE-2024-42098
Ubuntu:24.04:LTSlinux6.8.0-48.48UBUNTU-CVE-2024-42098
Ubuntu:22.04:LTSlinux-allwinner-5.19no fix listedUBUNTU-CVE-2024-42098
Ubuntu:22.04:LTSlinux-aws5.15.0-1069.75UBUNTU-CVE-2024-42098
Ubuntu:24.04:LTSlinux-aws6.8.0-1018.20UBUNTU-CVE-2024-42098
Ubuntu:22.04:LTSlinux-aws-5.19no fix listedUBUNTU-CVE-2024-42098
Ubuntu:22.04:LTSlinux-aws-6.2no fix listedUBUNTU-CVE-2024-42098
Ubuntu:22.04:LTSlinux-aws-6.5no fix listedUBUNTU-CVE-2024-42098
Ubuntu:22.04:LTSlinux-aws-6.86.8.0-1018.19~22.04.1UBUNTU-CVE-2024-42098
Ubuntu:22.04:LTSlinux-azure5.15.0-1072.81UBUNTU-CVE-2024-42098
Ubuntu:24.04:LTSlinux-azure6.8.0-1017.20UBUNTU-CVE-2024-42098
Ubuntu:22.04:LTSlinux-azure-5.19no fix listedUBUNTU-CVE-2024-42098
Ubuntu:22.04:LTSlinux-azure-6.2no fix listedUBUNTU-CVE-2024-42098
Ubuntu:22.04:LTSlinux-azure-6.5no fix listedUBUNTU-CVE-2024-42098
Ubuntu:22.04:LTSlinux-azure-6.86.8.0-1017.20~22.04.1UBUNTU-CVE-2024-42098
Ubuntu:22.04:LTSlinux-azure-fde5.15.0-1072.81.1UBUNTU-CVE-2024-42098
Ubuntu:22.04:LTSlinux-azure-fde-5.19no fix listedUBUNTU-CVE-2024-42098
Ubuntu:22.04:LTSlinux-azure-fde-6.2no fix listedUBUNTU-CVE-2024-42098
Ubuntu:22.04:LTSlinux-gcp5.15.0-1068.76UBUNTU-CVE-2024-42098
Ubuntu:24.04:LTSlinux-gcp6.8.0-1017.19UBUNTU-CVE-2024-42098
Ubuntu:22.04:LTSlinux-gcp-5.19no fix listedUBUNTU-CVE-2024-42098
Ubuntu:22.04:LTSlinux-gcp-6.2no fix listedUBUNTU-CVE-2024-42098
Ubuntu:22.04:LTSlinux-gcp-6.5no fix listedUBUNTU-CVE-2024-42098
Ubuntu:22.04:LTSlinux-gcp-6.86.8.0-1017.19~22.04.1UBUNTU-CVE-2024-42098
Ubuntu:22.04:LTSlinux-gke5.15.0-1066.72UBUNTU-CVE-2024-42098
Ubuntu:24.04:LTSlinux-gke6.8.0-1013.17UBUNTU-CVE-2024-42098
Ubuntu:22.04:LTSlinux-gkeop5.15.0-1052.59UBUNTU-CVE-2024-42098
Ubuntu:24.04:LTSlinux-gkeop6.8.0-1002.4UBUNTU-CVE-2024-42098
Ubuntu:22.04:LTSlinux-hwe-5.19no fix listedUBUNTU-CVE-2024-42098
Ubuntu:22.04:LTSlinux-hwe-6.2no fix listedUBUNTU-CVE-2024-42098
Ubuntu:22.04:LTSlinux-hwe-6.5no fix listedUBUNTU-CVE-2024-42098
Ubuntu:22.04:LTSlinux-hwe-6.86.8.0-48.48~22.04.1UBUNTU-CVE-2024-42098
Ubuntu:22.04:LTSlinux-ibm5.15.0-1062.65UBUNTU-CVE-2024-42098
Ubuntu:24.04:LTSlinux-ibm6.8.0-1015.15UBUNTU-CVE-2024-42098
Ubuntu:22.04:LTSlinux-ibm-6.86.8.0-1015.15~22.04.1UBUNTU-CVE-2024-42098
Ubuntu:22.04:LTSlinux-intel-iotg5.15.0-1064.70UBUNTU-CVE-2024-42098
Ubuntu:22.04:LTSlinux-kvm5.15.0-1066.71UBUNTU-CVE-2024-42098
Ubuntu:22.04:LTSlinux-lowlatency5.15.0-121.131UBUNTU-CVE-2024-42098
Ubuntu:24.04:LTSlinux-lowlatency6.8.0-48.48.3UBUNTU-CVE-2024-42098
Ubuntu:22.04:LTSlinux-lowlatency-hwe-5.19no fix listedUBUNTU-CVE-2024-42098
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.2no fix listedUBUNTU-CVE-2024-42098
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.5no fix listedUBUNTU-CVE-2024-42098
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.86.8.0-48.48.3~22.04.1UBUNTU-CVE-2024-42098
Ubuntu:22.04:LTSlinux-nvidia5.15.0-1064.65UBUNTU-CVE-2024-42098
Ubuntu:24.04:LTSlinux-nvidia6.8.0-1017.19UBUNTU-CVE-2024-42098
Ubuntu:22.04:LTSlinux-nvidia-6.2no fix listedUBUNTU-CVE-2024-42098
Ubuntu:22.04:LTSlinux-nvidia-6.5no fix listedUBUNTU-CVE-2024-42098
Ubuntu:22.04:LTSlinux-nvidia-6.86.8.0-1017.19~22.04.1UBUNTU-CVE-2024-42098
Ubuntu:24.04:LTSlinux-nvidia-lowlatency6.8.0-1017.19.1UBUNTU-CVE-2024-42098
Ubuntu:22.04:LTSlinux-nvidia-tegra5.15.0-1028.28UBUNTU-CVE-2024-42098
Ubuntu:22.04:LTSlinux-nvidia-tegra-igx5.15.0-1016.16UBUNTU-CVE-2024-42098
Ubuntu:22.04:LTSlinux-oem-5.17no fix listedUBUNTU-CVE-2024-42098
Ubuntu:22.04:LTSlinux-oem-6.0no fix listedUBUNTU-CVE-2024-42098
Ubuntu:22.04:LTSlinux-oem-6.1no fix listedUBUNTU-CVE-2024-42098
Ubuntu:22.04:LTSlinux-oem-6.5no fix listedUBUNTU-CVE-2024-42098
Ubuntu:24.04:LTSlinux-oem-6.86.8.0-1016.16UBUNTU-CVE-2024-42098
Ubuntu:22.04:LTSlinux-oracle5.15.0-1067.73UBUNTU-CVE-2024-42098
Ubuntu:24.04:LTSlinux-oracle6.8.0-1015.16UBUNTU-CVE-2024-42098
Ubuntu:22.04:LTSlinux-oracle-6.5no fix listedUBUNTU-CVE-2024-42098
Ubuntu:22.04:LTSlinux-oracle-6.86.8.0-1015.15~22.04.1UBUNTU-CVE-2024-42098
Ubuntu:22.04:LTSlinux-raspi5.15.0-1062.65UBUNTU-CVE-2024-42098
Ubuntu:24.04:LTSlinux-raspi6.8.0-1014.16UBUNTU-CVE-2024-42098
Ubuntu:22.04:LTSlinux-realtimeno fix listedUBUNTU-CVE-2024-42098
Ubuntu:22.04:LTSlinux-riscvno fix listedUBUNTU-CVE-2024-42098
Ubuntu:24.04:LTSlinux-riscv6.8.0-48.48.1UBUNTU-CVE-2024-42098
Ubuntu:22.04:LTSlinux-riscv-5.19no fix listedUBUNTU-CVE-2024-42098
Ubuntu:22.04:LTSlinux-riscv-6.5no fix listedUBUNTU-CVE-2024-42098
Ubuntu:22.04:LTSlinux-riscv-6.86.8.0-48.48.1~22.04.2UBUNTU-CVE-2024-42098
Ubuntu:22.04:LTSlinux-starfive-5.19no fix listedUBUNTU-CVE-2024-42098
Ubuntu:22.04:LTSlinux-starfive-6.2no fix listedUBUNTU-CVE-2024-42098
Ubuntu:22.04:LTSlinux-starfive-6.5no fix listedUBUNTU-CVE-2024-42098
Ubuntu:24.04:LTSlinux-xilinx6.8.0-1009.10UBUNTU-CVE-2024-42098
Ubuntu:22.04:LTSlinux-xilinx-zynqmp5.15.0-1035.39UBUNTU-CVE-2024-42098

Affected products (as reported)

VendorProductVersions
Linux Linux 3c4b23901a0c766879dff680cd6bdab47bcdbbd2 – before 39173b04abda87872b43c331468a4a14f8f05ce83c4b23901a0c766879dff680cd6bdab47bcdbbd2 – before fd7ef325911eba1b7191b83cb580463242f2090d3c4b23901a0c766879dff680cd6bdab47bcdbbd2 – before 80575b252ab0358b7e93895b2a510beb3cb3f9753c4b23901a0c766879dff680cd6bdab47bcdbbd2 – before d96187eb8e59b572a8e6a68b6a9837a867ea29df3c4b23901a0c766879dff680cd6bdab47bcdbbd2 – before 73e5984e540a76a2ee1868b91590c922da8c24c9
Linux Linux 4.8

References