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Vulnerability · Published Dec 27, 2024 · Assigned by Linux

CVE-2024-53179smb: client: fix use-after-free of signing key

Critical 9.8

In plain English

A critical-severity use-after-free 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 0.6% (higher than 50% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.1)9.8Critical
Exploit odds (30 days)0.6%top 50.2% 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 use-after-free of signing key Customers have reported use-after-free in @ses->auth_key.response with SMB2.1 + sign mounts which occurs due to following race: task A task B cifs_mount() dfs_mount_share() get_session() cifs_mount_get_session() cifs_send_recv() cifs_get_smb_ses() compound_send_recv() cifs_setup_session() smb2_setup_request() kfree_sensitive() smb2_calc_signature() crypto_shash_setkey() *UAF* Fix this by ensuring that we have a valid @ses->auth_key.response by checking whether @ses->ses_status is SES_GOOD or SES_EXITING with @ses->ses_lock held. After commit 24a9799aa8ef ("smb: client: fix UAF in smb2_reconnect_server()"), we made sure to call ->logoff() only when @ses was known to be good (e.g. valid ->auth_key.response), so it's safe to access signing key when @ses->ses_status == SES_EXITING.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
Debian:12linuxno fix listedDEBIAN-CVE-2024-53179
Debian:13linux6.12.3-1DEBIAN-CVE-2024-53179
Debian:14linux6.12.3-1DEBIAN-CVE-2024-53179
Ubuntu:22.04:LTSlinuxno fix listedUBUNTU-CVE-2024-53179
Ubuntu:24.04:LTSlinux6.8.0-60.63USN-7513-1
Ubuntu:24.04:LTSlinux6.8.0-60.63UBUNTU-CVE-2024-53179
Ubuntu:22.04:LTSlinux-allwinner-5.19no fix listedUBUNTU-CVE-2024-53179
Ubuntu:22.04:LTSlinux-awsno fix listedUBUNTU-CVE-2024-53179
Ubuntu:24.04:LTSlinux-aws6.8.0-1029.31UBUNTU-CVE-2024-53179
Ubuntu:24.04:LTSlinux-aws6.8.0-1029.31USN-7513-1
Ubuntu:22.04:LTSlinux-aws-5.19no fix listedUBUNTU-CVE-2024-53179
Ubuntu:22.04:LTSlinux-aws-6.2no fix listedUBUNTU-CVE-2024-53179
Ubuntu:22.04:LTSlinux-aws-6.5no fix listedUBUNTU-CVE-2024-53179
Ubuntu:22.04:LTSlinux-aws-6.86.8.0-1029.31~22.04.1USN-7513-1
Ubuntu:22.04:LTSlinux-aws-6.86.8.0-1029.31~22.04.1UBUNTU-CVE-2024-53179
Ubuntu:22.04:LTSlinux-azureno fix listedUBUNTU-CVE-2024-53179
Ubuntu:24.04:LTSlinux-azure6.8.0-1029.34USN-7513-3
Ubuntu:24.04:LTSlinux-azure6.8.0-1029.34UBUNTU-CVE-2024-53179
Ubuntu:22.04:LTSlinux-azure-5.19no fix listedUBUNTU-CVE-2024-53179
Ubuntu:24.04:LTSlinux-azure-6.116.11.0-1012.12~24.04.1UBUNTU-CVE-2024-53179
Ubuntu:22.04:LTSlinux-azure-6.2no fix listedUBUNTU-CVE-2024-53179
Ubuntu:22.04:LTSlinux-azure-6.5no fix listedUBUNTU-CVE-2024-53179
Ubuntu:22.04:LTSlinux-azure-6.86.8.0-1029.34~22.04.1UBUNTU-CVE-2024-53179
Ubuntu:22.04:LTSlinux-azure-6.86.8.0-1029.34~22.04.1USN-7513-3
Ubuntu:22.04:LTSlinux-azure-fdeno fix listedUBUNTU-CVE-2024-53179
Ubuntu:22.04:LTSlinux-azure-fde-5.19no fix listedUBUNTU-CVE-2024-53179
Ubuntu:22.04:LTSlinux-azure-fde-6.2no fix listedUBUNTU-CVE-2024-53179
Ubuntu:24.04:LTSlinux-azure-nvidia6.8.0-1016.17USN-7522-1
Ubuntu:24.04:LTSlinux-azure-nvidia6.8.0-1016.17UBUNTU-CVE-2024-53179
Ubuntu:22.04:LTSlinux-gcpno fix listedUBUNTU-CVE-2024-53179
Ubuntu:24.04:LTSlinux-gcp6.8.0-1030.32USN-7515-2
Ubuntu:24.04:LTSlinux-gcp6.8.0-1030.32UBUNTU-CVE-2024-53179
Ubuntu:22.04:LTSlinux-gcp-5.19no fix listedUBUNTU-CVE-2024-53179
Ubuntu:24.04:LTSlinux-gcp-6.116.11.0-1011.11~24.04.1UBUNTU-CVE-2024-53179
Ubuntu:22.04:LTSlinux-gcp-6.2no fix listedUBUNTU-CVE-2024-53179
Ubuntu:22.04:LTSlinux-gcp-6.5no fix listedUBUNTU-CVE-2024-53179
Ubuntu:22.04:LTSlinux-gcp-6.86.8.0-1030.32~22.04.1USN-7515-2
Ubuntu:22.04:LTSlinux-gcp-6.86.8.0-1030.32~22.04.1UBUNTU-CVE-2024-53179
Ubuntu:22.04:LTSlinux-gkeno fix listedUBUNTU-CVE-2024-53179
Ubuntu:24.04:LTSlinux-gke6.8.0-1025.29UBUNTU-CVE-2024-53179
Ubuntu:24.04:LTSlinux-gke6.8.0-1025.29USN-7515-1
Ubuntu:22.04:LTSlinux-gkeopno fix listedUBUNTU-CVE-2024-53179
Ubuntu:24.04:LTSlinux-gkeop6.8.0-1012.14USN-7515-2
Ubuntu:24.04:LTSlinux-gkeop6.8.0-1012.14UBUNTU-CVE-2024-53179
Ubuntu:22.04:LTSlinux-hwe-5.19no fix listedUBUNTU-CVE-2024-53179
Ubuntu:24.04:LTSlinux-hwe-6.116.11.0-21.21~24.04.1UBUNTU-CVE-2024-53179
Ubuntu:24.04:LTSlinux-hwe-6.116.11.0-21.21~24.04.1USN-7379-1
Ubuntu:22.04:LTSlinux-hwe-6.2no fix listedUBUNTU-CVE-2024-53179
Ubuntu:22.04:LTSlinux-hwe-6.5no fix listedUBUNTU-CVE-2024-53179
Ubuntu:22.04:LTSlinux-hwe-6.86.8.0-60.63~22.04.1UBUNTU-CVE-2024-53179
Ubuntu:22.04:LTSlinux-hwe-6.86.8.0-60.63~22.04.1USN-7513-4
Ubuntu:22.04:LTSlinux-ibmno fix listedUBUNTU-CVE-2024-53179
Ubuntu:24.04:LTSlinux-ibm6.8.0-1026.26USN-7513-1
Ubuntu:24.04:LTSlinux-ibm6.8.0-1026.26UBUNTU-CVE-2024-53179
Ubuntu:22.04:LTSlinux-ibm-6.86.8.0-1026.26~22.04.1UBUNTU-CVE-2024-53179
Ubuntu:22.04:LTSlinux-intel-iot-realtimeno fix listedUBUNTU-CVE-2024-53179
Ubuntu:22.04:LTSlinux-intel-iotgno fix listedUBUNTU-CVE-2024-53179
Ubuntu:22.04:LTSlinux-kvmno fix listedUBUNTU-CVE-2024-53179
Ubuntu:22.04:LTSlinux-lowlatencyno fix listedUBUNTU-CVE-2024-53179
Ubuntu:24.04:LTSlinux-lowlatency6.8.0-60.63.1UBUNTU-CVE-2024-53179
Ubuntu:24.04:LTSlinux-lowlatency6.8.0-60.63.1USN-7513-1
Ubuntu:22.04:LTSlinux-lowlatency-hwe-5.19no fix listedUBUNTU-CVE-2024-53179
Ubuntu:24.04:LTSlinux-lowlatency-hwe-6.116.11.0-1011.12~24.04.1USN-7381-1
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.2no fix listedUBUNTU-CVE-2024-53179
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.5no fix listedUBUNTU-CVE-2024-53179
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.86.8.0-60.63.1~22.04.1USN-7513-1
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.86.8.0-60.63.1~22.04.1UBUNTU-CVE-2024-53179
Ubuntu:22.04:LTSlinux-nvidiano fix listedUBUNTU-CVE-2024-53179
Ubuntu:24.04:LTSlinux-nvidia6.8.0-1028.31UBUNTU-CVE-2024-53179
Ubuntu:24.04:LTSlinux-nvidia6.8.0-1028.31USN-7514-1
Ubuntu:24.04:LTSlinux-nvidia-6.116.11.0-1007.7UBUNTU-CVE-2024-53179
Ubuntu:22.04:LTSlinux-nvidia-6.2no fix listedUBUNTU-CVE-2024-53179
Ubuntu:22.04:LTSlinux-nvidia-6.5no fix listedUBUNTU-CVE-2024-53179
Ubuntu:22.04:LTSlinux-nvidia-6.86.8.0-1028.31~22.04.1USN-7514-1
Ubuntu:22.04:LTSlinux-nvidia-6.86.8.0-1028.31~22.04.1UBUNTU-CVE-2024-53179
Ubuntu:24.04:LTSlinux-nvidia-lowlatency6.8.0-1028.31.1USN-7514-1
Ubuntu:24.04:LTSlinux-nvidia-lowlatency6.8.0-1028.31.1UBUNTU-CVE-2024-53179
Ubuntu:22.04:LTSlinux-nvidia-tegrano fix listedUBUNTU-CVE-2024-53179
Ubuntu:24.04:LTSlinux-nvidia-tegra6.8.0-1008.8UBUNTU-CVE-2024-53179
Ubuntu:22.04:LTSlinux-nvidia-tegra-igxno fix listedUBUNTU-CVE-2024-53179
Ubuntu:22.04:LTSlinux-oem-5.17no fix listedUBUNTU-CVE-2024-53179
Ubuntu:22.04:LTSlinux-oem-6.0no fix listedUBUNTU-CVE-2024-53179
Ubuntu:22.04:LTSlinux-oem-6.1no fix listedUBUNTU-CVE-2024-53179
Ubuntu:24.04:LTSlinux-oem-6.116.11.0-1017.17USN-7382-1
Ubuntu:24.04:LTSlinux-oem-6.116.11.0-1017.17UBUNTU-CVE-2024-53179
Ubuntu:22.04:LTSlinux-oem-6.5no fix listedUBUNTU-CVE-2024-53179
Ubuntu:24.04:LTSlinux-oem-6.86.8.0-1028.28UBUNTU-CVE-2024-53179
Ubuntu:24.04:LTSlinux-oem-6.86.8.0-1028.28USN-7513-3
Ubuntu:22.04:LTSlinux-oracleno fix listedUBUNTU-CVE-2024-53179
Ubuntu:24.04:LTSlinux-oracle6.8.0-1026.27USN-7513-1
Ubuntu:24.04:LTSlinux-oracle6.8.0-1026.27UBUNTU-CVE-2024-53179
Ubuntu:22.04:LTSlinux-oracle-6.5no fix listedUBUNTU-CVE-2024-53179
Ubuntu:22.04:LTSlinux-oracle-6.86.8.0-1026.27~22.04.1USN-7513-5
Ubuntu:22.04:LTSlinux-oracle-6.86.8.0-1026.27~22.04.1UBUNTU-CVE-2024-53179
Ubuntu:22.04:LTSlinux-raspino fix listedUBUNTU-CVE-2024-53179
Ubuntu:24.04:LTSlinux-raspi6.8.0-1028.32UBUNTU-CVE-2024-53179
Ubuntu:24.04:LTSlinux-raspi-realtimeno fix listedUBUNTU-CVE-2024-53179
Ubuntu:22.04:LTSlinux-realtimeno fix listedUBUNTU-CVE-2024-53179
Ubuntu:24.04:LTSlinux-realtimeno fix listedUBUNTU-CVE-2024-53179
Ubuntu:22.04:LTSlinux-riscvno fix listedUBUNTU-CVE-2024-53179
Ubuntu:24.04:LTSlinux-riscv6.8.0-60.63.1UBUNTU-CVE-2024-53179
Ubuntu:22.04:LTSlinux-riscv-5.19no fix listedUBUNTU-CVE-2024-53179
Ubuntu:22.04:LTSlinux-riscv-6.5no fix listedUBUNTU-CVE-2024-53179
Ubuntu:22.04:LTSlinux-riscv-6.86.8.0-62.65~22.04.1UBUNTU-CVE-2024-53179
Ubuntu:22.04:LTSlinux-starfive-5.19no fix listedUBUNTU-CVE-2024-53179
Ubuntu:22.04:LTSlinux-starfive-6.2no fix listedUBUNTU-CVE-2024-53179
Ubuntu:22.04:LTSlinux-starfive-6.5no fix listedUBUNTU-CVE-2024-53179
Ubuntu:24.04:LTSlinux-xilinx6.8.0-1017.18UBUNTU-CVE-2024-53179
Ubuntu:22.04:LTSlinux-xilinx-zynqmpno fix listedUBUNTU-CVE-2024-53179

Affected products (as reported)

VendorProductVersions
Linux Linux 32811d242ff6f28da2ab18c90a15e32fd958e774 – before 0944c2596c2a3442735b5bb6714a17a16188a68f32811d242ff6f28da2ab18c90a15e32fd958e774 – before 39619c65ab4bbb3e78c818f537687653e112764d32811d242ff6f28da2ab18c90a15e32fd958e774 – before 0e2b654a3848bf9da3b0d54c1ccf3f1b8c63559132811d242ff6f28da2ab18c90a15e32fd958e774 – before 343d7fe6df9e247671440a932b6a73af4fa86d95
Linux Linux 3.12

Weakness: CWE-416 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

References