Ubuntu Security Notice 2049-1 - Miroslav Vadkerti discovered a flaw in how the permissions for network sysctls are handled in the Linux kernel. An unprivileged local user could exploit this flaw to have privileged access to files in /proc/sys/net/. A flaw was discovered in the Linux kernel's dm snapshot facility. A remote authenticated user could exploit this flaw to obtain sensitive information or modify/corrupt data. Various other issues were also addressed.
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Ubuntu Security Notice 2023-1 - An information leak was discovered in the handling of ICMPv6 Router Advertisement (RA) messages in the Linux kernel's IPv6 network stack. A remote attacker could exploit this flaw to cause a denial of service (excessive retries and address-generation outage), and consequently obtain sensitive information. Dan Carpenter discovered an information leak in the HP Smart Aray and Compaq SMART2 disk-array driver in the Linux kernel. A local user could exploit this flaw to obtain sensitive information from kernel memory. Various other issues were also addressed.
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Ubuntu Security Notice 2020-1 - An information leak was discovered in the handling of ICMPv6 Router Advertisement (RA) messages in the Linux kernel's IPv6 network stack. A remote attacker could exploit this flaw to cause a denial of service (excessive retries and address-generation outage), and consequently obtain sensitive information. Dan Carpenter discovered an information leak in the HP Smart Aray and Compaq SMART2 disk-array driver in the Linux kernel. A local user could exploit this flaw to obtain sensitive information from kernel memory. Various other issues were also addressed.
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Red Hat Security Advisory 2013-1490-01 - The kernel-rt packages contain the Linux kernel, the core of any Linux operating system. A flaw was found in the way IP packets with an Internet Header Length of zero were processed in the skb_flow_dissect() function in the Linux kernel. A remote attacker could use this flaw to trigger an infinite loop in the kernel, leading to a denial of service. A flaw was found in the way the Linux kernel's IPv6 implementation handled certain UDP packets when the UDP Fragmentation Offload feature was enabled. A remote attacker could use this flaw to crash the system or, potentially, escalate their privileges on the system.
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