CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:HIn the Linux kernel, the following vulnerability has been resolved: net: sched: act_csum: validate nested VLAN headers tcf_csum_act() walks nested VLAN headers directly from skb->data when an skb still carries in-payload VLAN tags. The current code reads vlan->h_vlan_encapsulated_proto and then pulls VLAN_HLEN bytes without first ensuring that the full VLAN header is present in the linear area. If only part of an inner VLAN header is linearized, accessing h_vlan_encapsulated_proto reads past the linear area, and the following skb_pull(VLAN_HLEN) may violate skb invariants. Fix this by requiring pskb_may_pull(skb, VLAN_HLEN) before accessing and pulling each nested VLAN header. If the header still is not fully available, drop the packet through the existing error path. A flaw was found in the Linux kernel's network scheduler component. A remote attacker could send specially crafted network packets containing nested Virtual Local Area Network (VLAN) headers. This could cause the kernel to read beyond allocated memory, leading to a system crash and a denial of service.
Multiple vulnerabilities have been discovered in the Linux kernel of Ubuntu. Some of these vulnerabilities allow for privilege escalation, data confidentiality compromise, and data integrity compromise. These vulnerabili…
Multiple vulnerabilities have been discovered in the Linux kernel of Ubuntu. Several of these vulnerabilities allow for privilege escalation, data confidentiality breaches, and a security issue not specified by the publi…
Multiple vulnerabilities have been discovered in IBM products, including remote code execution, privilege escalation, and denial-of-service attacks. These vulnerabilities affect a wide range of IBM products, including da…
Multiple vulnerabilities have been discovered in the Red Hat Linux kernel. Some of these vulnerabilities allow an attacker to cause arbitrary code execution, privilege escalation, and a denial-of-service attack. These vu…
Multiple vulnerabilities have been discovered in the Linux kernel of Ubuntu. Some of these vulnerabilities allow for privilege escalation, data confidentiality breaches, and data integrity compromise. These vulnerabiliti…
Multiple vulnerabilities have been discovered in the Linux kernel of Ubuntu. Some of these vulnerabilities allow for privilege escalation, data confidentiality breaches, and denial of service attacks. The vulnerabilities…
Multiple vulnerabilities have been discovered in the Red Hat Linux kernel. Some of these vulnerabilities allow an attacker to cause remote code execution, privilege escalation, and a denial-of-service attack. These vulne…
Multiple vulnerabilities have been discovered in Red Hat's Linux kernel. These vulnerabilities can lead to arbitrary code execution, privilege escalation, and a denial-of-service attack. Red Hat has released security adv…