Log in Start free

Vulnerability · Published May 19, 2024 · Assigned by Linux

CVE-2024-35863smb: client: fix potential UAF in is_valid_oplock_break()

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 0.7% (higher than 52% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.1)9.8Critical
Exploit odds (30 days)0.7%top 48.2% 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: smb: client: fix potential UAF in is_valid_oplock_break() Skip sessions that are being teared down (status == SES_EXITING) to avoid UAF.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
Debian:12linux6.1.85-1DEBIAN-CVE-2024-35863
Debian:13linux6.8.9-1DEBIAN-CVE-2024-35863
Debian:14linux6.8.9-1DEBIAN-CVE-2024-35863
Ubuntu:24.04:LTSlinux6.8.0-38.38UBUNTU-CVE-2024-35863
Ubuntu:22.04:LTSlinux-allwinner-5.19no fix listedUBUNTU-CVE-2024-35863
Ubuntu:24.04:LTSlinux-aws6.8.0-1011.12UBUNTU-CVE-2024-35863
Ubuntu:22.04:LTSlinux-aws-5.19no fix listedUBUNTU-CVE-2024-35863
Ubuntu:22.04:LTSlinux-aws-6.2no fix listedUBUNTU-CVE-2024-35863
Ubuntu:22.04:LTSlinux-aws-6.5no fix listedUBUNTU-CVE-2024-35863
Ubuntu:22.04:LTSlinux-aws-6.86.8.0-1011.12~22.04.1UBUNTU-CVE-2024-35863
Ubuntu:22.04:LTSlinux-azureno fix listedUBUNTU-CVE-2024-35863
Ubuntu:24.04:LTSlinux-azure6.8.0-1010.10UBUNTU-CVE-2024-35863
Ubuntu:22.04:LTSlinux-azure-5.19no fix listedUBUNTU-CVE-2024-35863
Ubuntu:22.04:LTSlinux-azure-6.2no fix listedUBUNTU-CVE-2024-35863
Ubuntu:22.04:LTSlinux-azure-6.5no fix listedUBUNTU-CVE-2024-35863
Ubuntu:22.04:LTSlinux-azure-6.86.8.0-1010.10~22.04.1UBUNTU-CVE-2024-35863
Ubuntu:22.04:LTSlinux-azure-fdeno fix listedUBUNTU-CVE-2024-35863
Ubuntu:22.04:LTSlinux-azure-fde-5.19no fix listedUBUNTU-CVE-2024-35863
Ubuntu:22.04:LTSlinux-azure-fde-6.2no fix listedUBUNTU-CVE-2024-35863
Ubuntu:24.04:LTSlinux-gcp6.8.0-1010.11UBUNTU-CVE-2024-35863
Ubuntu:22.04:LTSlinux-gcp-5.19no fix listedUBUNTU-CVE-2024-35863
Ubuntu:22.04:LTSlinux-gcp-6.2no fix listedUBUNTU-CVE-2024-35863
Ubuntu:22.04:LTSlinux-gcp-6.5no fix listedUBUNTU-CVE-2024-35863
Ubuntu:24.04:LTSlinux-gke6.8.0-1006.9UBUNTU-CVE-2024-35863
Ubuntu:22.04:LTSlinux-hwe-5.19no fix listedUBUNTU-CVE-2024-35863
Ubuntu:22.04:LTSlinux-hwe-6.2no fix listedUBUNTU-CVE-2024-35863
Ubuntu:22.04:LTSlinux-hwe-6.5no fix listedUBUNTU-CVE-2024-35863
Ubuntu:24.04:LTSlinux-ibm6.8.0-1008.8UBUNTU-CVE-2024-35863
Ubuntu:24.04:LTSlinux-intel6.8.0-1007.14UBUNTU-CVE-2024-35863
Ubuntu:22.04:LTSlinux-intel-iot-realtimeno fix listedUBUNTU-CVE-2024-35863
Ubuntu:24.04:LTSlinux-lowlatency6.8.0-38.38.1UBUNTU-CVE-2024-35863
Ubuntu:22.04:LTSlinux-lowlatency-hwe-5.19no fix listedUBUNTU-CVE-2024-35863
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.2no fix listedUBUNTU-CVE-2024-35863
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.5no fix listedUBUNTU-CVE-2024-35863
Ubuntu:24.04:LTSlinux-nvidia6.8.0-1009.9UBUNTU-CVE-2024-35863
Ubuntu:22.04:LTSlinux-nvidia-6.2no fix listedUBUNTU-CVE-2024-35863
Ubuntu:22.04:LTSlinux-nvidia-6.5no fix listedUBUNTU-CVE-2024-35863
Ubuntu:22.04:LTSlinux-nvidia-6.86.8.0-1009.9~22.04.1UBUNTU-CVE-2024-35863
Ubuntu:22.04:LTSlinux-oem-5.17no fix listedUBUNTU-CVE-2024-35863
Ubuntu:22.04:LTSlinux-oem-6.0no fix listedUBUNTU-CVE-2024-35863
Ubuntu:22.04:LTSlinux-oem-6.1no fix listedUBUNTU-CVE-2024-35863
Ubuntu:22.04:LTSlinux-oem-6.5no fix listedUBUNTU-CVE-2024-35863
Ubuntu:24.04:LTSlinux-oem-6.86.8.0-1008.8UBUNTU-CVE-2024-35863
Ubuntu:24.04:LTSlinux-oracle6.8.0-1008.8UBUNTU-CVE-2024-35863
Ubuntu:22.04:LTSlinux-oracle-6.5no fix listedUBUNTU-CVE-2024-35863
Ubuntu:22.04:LTSlinux-oracle-6.86.8.0-1008.8~22.04.1UBUNTU-CVE-2024-35863
Ubuntu:24.04:LTSlinux-raspi6.8.0-1007.7UBUNTU-CVE-2024-35863
Ubuntu:22.04:LTSlinux-realtimeno fix listedUBUNTU-CVE-2024-35863
Ubuntu:22.04:LTSlinux-riscvno fix listedUBUNTU-CVE-2024-35863
Ubuntu:24.04:LTSlinux-riscv6.8.0-38.38.1UBUNTU-CVE-2024-35863
Ubuntu:22.04:LTSlinux-riscv-5.19no fix listedUBUNTU-CVE-2024-35863
Ubuntu:22.04:LTSlinux-riscv-6.5no fix listedUBUNTU-CVE-2024-35863
Ubuntu:22.04:LTSlinux-starfive-5.19no fix listedUBUNTU-CVE-2024-35863
Ubuntu:22.04:LTSlinux-starfive-6.2no fix listedUBUNTU-CVE-2024-35863
Ubuntu:22.04:LTSlinux-starfive-6.5no fix listedUBUNTU-CVE-2024-35863

Affected products (as reported)

VendorProductVersions
Linux Linux 7f48558e6489d032b1584b0cc9ac4bb11072c034 – before 494c91e1e9413b407d12166a61b84200d4d54fac7f48558e6489d032b1584b0cc9ac4bb11072c034 – before 0a15ba88a32fa7a516aff7ffd27befed5334dff27f48558e6489d032b1584b0cc9ac4bb11072c034 – before 16d58c6a7db5050b9638669084b63fc05f9518257f48558e6489d032b1584b0cc9ac4bb11072c034 – before 69ccf040acddf33a3a85ec0f6b45ef84b0f7ec29a67172a013953664b1dad03c648200c70b90506c3.12.48 – before 3.13
Linux Linux 3.13

References