Resource management error in Linux kernel - CVE-2024-27390

Vulnerability identifier: #VU94104

CSH Severity: Medium

CVSS v4: 8.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]

CVE-ID: CVE-2024-27390

CWE-ID: CWE-399

Exploitation vector: Remote access

Exploit availability: No public exploit available

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to the way the synchronize_net() function is called within the ipv6_mc_down() function in net/ipv6/mcast.c, which can lead to long synchronization up to 5 minutes. A remote attacker can perform a denial of service (DoS) attack by initiating multiple connections.

Linux kernel
Ubuntu
linux-image-virtual-hwe-20.04 (Ubuntu package)
linux-image-oem-20.04d (Ubuntu package)
linux-image-oem-20.04c (Ubuntu package)
linux-image-5.15.0-113-generic (Ubuntu package)
linux-image-5.15.0-113-generic-64k (Ubuntu package)
linux-image-5.15.0-113-generic-lpae (Ubuntu package)
linux-image-generic-64k-hwe-20.04 (Ubuntu package)
linux-image-generic-hwe-20.04 (Ubuntu package)
linux-image-generic-lpae-hwe-20.04 (Ubuntu package)
linux-image-oem-20.04 (Ubuntu package)
linux-image-oem-20.04b (Ubuntu package)
linux-image-gkeop (Ubuntu package)
linux-image-gkeop-5.15 (Ubuntu package)
linux-image-5.15.0-1046-gkeop (Ubuntu package)
linux-image-5.15.0-1057-ibm (Ubuntu package)
linux-image-ibm (Ubuntu package)
linux-image-raspi-nolpae (Ubuntu package)
linux-image-raspi (Ubuntu package)
linux-image-5.15.0-1058-raspi (Ubuntu package)
linux-image-kvm (Ubuntu package)
linux-image-5.15.0-1060-kvm (Ubuntu package)
linux-image-virtual-hwe-24.04 (Ubuntu package)
linux-image-generic (Ubuntu package)
linux-image-generic-64k (Ubuntu package)
linux-image-generic-64k-hwe-24.04 (Ubuntu package)
linux-image-generic-hwe-24.04 (Ubuntu package)
linux-image-generic-lpae (Ubuntu package)
linux-image-virtual (Ubuntu package)
linux-image-6.8.0-35-lowlatency (Ubuntu package)
linux-image-6.8.0-35-generic (Ubuntu package)
linux-image-lowlatency-64k (Ubuntu package)
linux-image-lowlatency (Ubuntu package)
linux-image-6.8.0-35-lowlatency-64k (Ubuntu package)
linux-image-6.8.0-35-generic-64k (Ubuntu package)
linux-image-6.8.0-1004-gke (Ubuntu package)
linux-image-gke (Ubuntu package)
linux-image-6.8.0-1005-raspi (Ubuntu package)
linux-image-ibm-classic (Ubuntu package)
linux-image-6.8.0-1006-ibm (Ubuntu package)
linux-image-oracle-64k (Ubuntu package)
linux-image-oracle (Ubuntu package)
linux-image-6.8.0-1006-oracle-64k (Ubuntu package)
linux-image-6.8.0-1006-oracle (Ubuntu package)
linux-image-6.8.0-1006-oem (Ubuntu package)
linux-image-ibm-lts-24.04 (Ubuntu package)
linux-image-oem-24.04a (Ubuntu package)
linux-image-oem-24.04 (Ubuntu package)
linux-image-azure-fde (Ubuntu package)
linux-image-azure (Ubuntu package)
linux-image-6.8.0-1008-azure-fde (Ubuntu package)
linux-image-6.8.0-1008-azure (Ubuntu package)

Install updates from vendor's website.

Linux kernel - addressed in versions 5.15.153, 6.1.83, 6.6.23, 6.7.11, 6.8.2
linux-image-virtual-hwe-20.04 (Ubuntu package) - update to 5.15.0.113.123~20.04.1
linux-image-oem-20.04d (Ubuntu package) - update to 5.15.0.113.123~20.04.1
linux-image-oem-20.04c (Ubuntu package) - update to 5.15.0.113.123~20.04.1
linux-image-5.15.0-113-generic (Ubuntu package) - update to 5.15.0-113.123~20.04.1
linux-image-5.15.0-113-generic-64k (Ubuntu package) - update to 5.15.0-113.123~20.04.1
linux-image-5.15.0-113-generic-lpae (Ubuntu package) - update to 5.15.0-113.123~20.04.1
linux-image-generic-64k-hwe-20.04 (Ubuntu package) - update to 5.15.0.113.123~20.04.1
linux-image-generic-hwe-20.04 (Ubuntu package) - update to 5.15.0.113.123~20.04.1
linux-image-generic-lpae-hwe-20.04 (Ubuntu package) - update to 5.15.0.113.123~20.04.1
linux-image-oem-20.04 (Ubuntu package) - update to 5.15.0.113.123~20.04.1
linux-image-oem-20.04b (Ubuntu package) - update to 5.15.0.113.123~20.04.1
linux-image-gkeop (Ubuntu package) - update to 5.15.0.1046.45
linux-image-gkeop-5.15 (Ubuntu package) - addressed in versions 5.15.0.1046.45, 5.15.0.1046.53~20.04.1
linux-image-5.15.0-1046-gkeop (Ubuntu package) - update to 5.15.0-1046.53~20.04.1
linux-image-5.15.0-1057-ibm (Ubuntu package) - update to 5.15.0-1057.60~20.04.1
linux-image-ibm (Ubuntu package) - addressed in versions 5.15.0.1057.60~20.04.1, 6.8.0-1006.6
linux-image-raspi-nolpae (Ubuntu package) - update to 5.15.0.1058.56
linux-image-raspi (Ubuntu package) - addressed in versions 5.15.0.1058.56, 6.8.0-1005.5
linux-image-5.15.0-1058-raspi (Ubuntu package) - update to 5.15.0-1058.61
linux-image-kvm (Ubuntu package) - addressed in versions 5.15.0.1060.56, 6.8.0-35.35
linux-image-5.15.0-1060-kvm (Ubuntu package) - update to 5.15.0-1060.65
linux-image-virtual-hwe-24.04 (Ubuntu package) - update to 6.8.0-35.35
linux-image-generic (Ubuntu package) - update to 6.8.0-35.35
linux-image-generic-64k (Ubuntu package) - update to 6.8.0-35.35
linux-image-generic-64k-hwe-24.04 (Ubuntu package) - update to 6.8.0-35.35
linux-image-generic-hwe-24.04 (Ubuntu package) - update to 6.8.0-35.35
linux-image-generic-lpae (Ubuntu package) - update to 6.8.0-35.35
linux-image-virtual (Ubuntu package) - update to 6.8.0-35.35
linux-image-6.8.0-35-lowlatency (Ubuntu package) - update to 6.8.0-35.35.1
linux-image-6.8.0-35-generic (Ubuntu package) - update to 6.8.0-35.35+1
linux-image-lowlatency-64k (Ubuntu package) - update to 6.8.0-35.35.1
linux-image-lowlatency (Ubuntu package) - update to 6.8.0-35.35.1
linux-image-6.8.0-35-lowlatency-64k (Ubuntu package) - update to 6.8.0-35.35.1
linux-image-6.8.0-35-generic-64k (Ubuntu package) - update to 6.8.0-35.35+1
linux-image-6.8.0-1004-gke (Ubuntu package) - update to 6.8.0-1004.7
linux-image-gke (Ubuntu package) - update to 6.8.0-1004.7
linux-image-6.8.0-1005-raspi (Ubuntu package) - update to 6.8.0-1005.5
linux-image-ibm-classic (Ubuntu package) - update to 6.8.0-1006.6
linux-image-6.8.0-1006-ibm (Ubuntu package) - update to 6.8.0-1006.6
linux-image-oracle-64k (Ubuntu package) - update to 6.8.0-1006.6
linux-image-oracle (Ubuntu package) - update to 6.8.0-1006.6
linux-image-6.8.0-1006-oracle-64k (Ubuntu package) - update to 6.8.0-1006.6
linux-image-6.8.0-1006-oracle (Ubuntu package) - update to 6.8.0-1006.6
linux-image-6.8.0-1006-oem (Ubuntu package) - update to 6.8.0-1006.6
linux-image-ibm-lts-24.04 (Ubuntu package) - update to 6.8.0-1006.6
linux-image-oem-24.04a (Ubuntu package) - update to 6.8.0-1006.6+1
linux-image-oem-24.04 (Ubuntu package) - update to 6.8.0-1006.6+1
linux-image-azure-fde (Ubuntu package) - update to 6.8.0-1008.8
linux-image-azure (Ubuntu package) - update to 6.8.0-1008.8
linux-image-6.8.0-1008-azure-fde (Ubuntu package) - update to 6.8.0-1008.8
linux-image-6.8.0-1008-azure (Ubuntu package) - update to 6.8.0-1008.8

• https://git.kernel.org/stable/c/9d159d6637ccce25f879d662a480541ef4ba3a50
• https://git.kernel.org/stable/c/a03ede2282ebbd181bd6f5c38cbfcb5765afcd04
• https://git.kernel.org/stable/c/26d4bac55750d535f1f0b8790dc26daf6089e373
• https://git.kernel.org/stable/c/7eb06ee5921189812e6b4bfe7b0f1e878be16df7
• https://git.kernel.org/stable/c/5da9a218340a2bc804dc4327e5804392e24a0b88
• https://git.kernel.org/stable/c/17ef8efc00b34918b966388b2af0993811895a8c
• https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.15.153
• https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.1.83
• https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.6.23
• https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.7.11
• https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.8.2

• Remote denial of service in Linux kernel ipv6 mcast
• Ubuntu update for linux-gkeop
• Ubuntu update for linux-hwe-5.15
• Ubuntu update for linux-ibm-5.15
• Ubuntu update for linux
• Ubuntu update for linux-oem-6.8
• Ubuntu update for linux-azure
• Ubuntu update for linux-oracle
• Ubuntu update for linux-raspi