Red Hat Security Advisory 2017-1298-01 - The kernel-rt packages provide the Real Time Linux Kernel, which enables fine-tuning for systems with extremely high determinism requirements. Security Fix: It was found that the packet_set_ring() function of the Linux kernel's networking implementation did not properly validate certain block-size data. A local attacker with CAP_NET_RAW capability could use this flaw to trigger a buffer overflow, resulting in the crash of the system. Due to the nature of the flaw, privilege escalation cannot be fully ruled out.
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Red Hat Security Advisory 2017-1297-01 - The kernel-rt packages provide the Real Time Linux Kernel, which enables fine-tuning for systems with extremely high determinism requirements. Security Fix: It was found that the packet_set_ring() function of the Linux kernel's networking implementation did not properly validate certain block-size data. A local attacker with CAP_NET_RAW capability could use this flaw to trigger a buffer overflow, resulting in the crash of the system. Due to the nature of the flaw, privilege escalation cannot be fully ruled out.
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Red Hat Security Advisory 2017-1308-01 - The kernel packages contain the Linux kernel, the core of any Linux operating system. Security Fix: It was found that the packet_set_ring() function of the Linux kernel's networking implementation did not properly validate certain block-size data. A local attacker with CAP_NET_RAW capability could use this flaw to trigger a buffer overflow, resulting in the crash of the system. Due to the nature of the flaw, privilege escalation cannot be fully ruled out.
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Several security issues were fixed in the kernel. Andrey Konovalov discovered that the AF_PACKET implementation in the Linux kernel did not properly validate certain block-size data. A local attacker could use this to cause a denial of service (system crash). Andrey Konovalov discovered a use-after-free vulnerability in the DCCP implementation in the Linux kernel. A local attacker could use this to cause a denial of service (system crash) or possibly gain administrative privileges. Various other issues were also addressed.
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Red Hat Security Advisory 2017-0892-01 - The kernel packages contain the Linux kernel, the core of any Linux operating system. Security Fix: A race condition flaw was found in the N_HLDC Linux kernel driver when accessing n_hdlc.tbuf list that can lead to double free. A local, unprivileged user able to set the HDLC line discipline on the tty device could use this flaw to increase their privileges on the system.
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Ubuntu Security Notice 3207-2 - USN-3207-1 fixed vulnerabilities in the Linux kernel for Ubuntu 14.04 LTS. This update provides the corresponding updates for the Linux Hardware Enablement kernel from Ubuntu 14.04 LTS for Ubuntu 12.04 LTS. It was discovered that a use-after-free vulnerability existed in the block device layer of the Linux kernel. A local attacker could use this to cause a denial of service or possibly gain administrative privileges. Various other issues were also addressed.
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Ubuntu Security Notice 3207-1 - It was discovered that a use-after-free vulnerability existed in the block device layer of the Linux kernel. A local attacker could use this to cause a denial of service or possibly gain administrative privileges. Dmitry Vyukov discovered a use-after-free vulnerability in the sys_ioprio_get function in the Linux kernel. A local attacker could use this to cause a denial of service or possibly gain administrative privileges. Various other issues were also addressed.
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Ubuntu Security Notice 3206-1 - It was discovered that a use-after-free vulnerability existed in the block device layer of the Linux kernel. A local attacker could use this to cause a denial of service or possibly gain administrative privileges. Dmitry Vyukov discovered a use-after-free vulnerability in the sys_ioprio_get function in the Linux kernel. A local attacker could use this to cause a denial of service or possibly gain administrative privileges. Various other issues were also addressed.
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