Tavis Ormandy discovered that some AMD processors did not properly handle speculative execution of certain vector register instructions. A local attacker could use this to expose sensitive information. (CVE-2023-20593)
Yu Hao discovered that the UBI driver in the Linux kernel did not properly check for MTD with zero erasesize during device attachment. A local privileged attacker could use this to cause a denial of service (system crash). (CVE-2023-31085)
Lucas Leong discovered that the netfilter subsystem in the Linux kernel did not properly validate some attributes passed from userspace. A local attacker could use this to cause a denial of service (system crash) or possibly expose sensitive information (kernel memory). (CVE-2023-39189)
Sunjoo Park discovered that the netfilter subsystem in the Linux kernel did not properly validate u32 packets content, leading to an out-of-bounds read vulnerability. A local attacker could use this to cause a denial of service (system crash) or possibly expose sensitive information. (CVE-2023-39192)
Lucas Leong discovered that the netfilter subsystem in the Linux kernel did not properly validate SCTP data, leading to an out-of-bounds read vulnerability. A local attacker could use this to cause a denial of service (system crash) or possibly expose sensitive information. (CVE-2023-39193)
Lucas Leong discovered that the Netlink Transformation (XFRM) subsystem in the Linux kernel did not properly handle state filters, leading to an out- of-bounds read vulnerability. A privileged local attacker could use this to cause a denial of service (system crash) or possibly expose sensitive information. (CVE-2023-39194)
Kyle Zeng discovered that the IPv4 implementation in the Linux kernel did not properly handle socket buffers (skb) when performing IP routing in certain circumstances, leading to a null pointer dereference vulnerability. A privileged attacker could use this to cause a denial of service (system crash). (CVE-2023-42754)
It was discovered that the USB ENE card reader driver in the Linux kernel did not properly allocate enough memory when processing the storage device boot blocks. A local attacker could use this to cause a denial of service (system crash). (CVE-2023-45862)
Manfred Rudigier discovered that the Intel(R) PCI-Express Gigabit (igb) Ethernet driver in the Linux kernel did not properly validate received frames that are larger than the set MTU size, leading to a buffer overflow vulnerability. An attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2023-45871)
Budimir Markovic discovered that the perf subsystem in the Linux kernel did not properly handle event groups, leading to an out-of-bounds write vulnerability. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2023-5717)
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{ "availability": "Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro", "binaries": [ { "linux-headers-4.4.0-1126-kvm": "4.4.0-1126.136", "linux-cloud-tools-4.4.0-1126-kvm": "4.4.0-1126.136", "linux-modules-4.4.0-1126-kvm": "4.4.0-1126.136", "linux-kvm-cloud-tools-4.4.0-1126": "4.4.0-1126.136", "linux-kvm-tools-4.4.0-1126": "4.4.0-1126.136", "linux-buildinfo-4.4.0-1126-kvm": "4.4.0-1126.136", "linux-image-4.4.0-1126-kvm-dbgsym": "4.4.0-1126.136", "linux-tools-4.4.0-1126-kvm": "4.4.0-1126.136", "linux-image-4.4.0-1126-kvm": "4.4.0-1126.136", "linux-kvm-headers-4.4.0-1126": "4.4.0-1126.136" } ] }