It was discovered that a race condition existed in the GFS2 file system in the Linux kernel. A local attacker could possibly use this to cause a denial of service (system crash). It was discovered that a use-after-free error existed in the block layer subsystem of the Linux kernel when certain failure conditions occurred. A local attacker could possibly use this to cause a denial of service (system crash) or possibly execute arbitrary code. Various other issues were also addressed.
5442de6a129171e9103a7acd9d861ab0fda6074505e32a4ad08db9df45b30c61Red Hat Security Advisory 2019-1699-01 - The redhat-virtualization-host packages provide the Red Hat Virtualization Host. These packages include redhat-release-virtualization-host, ovirt-node, and rhev-hypervisor. Red Hat Virtualization Hosts are installed using a special build of Red Hat Enterprise Linux with only the packages required to host virtual machines. RHVH features a Cockpit user interface for monitoring the host's resources and performing administrative tasks. Issues addressed include a denial of service vulnerability.
d22eb754fb8254f68a8d336dc7f00edae903b9adbc16438840fac6e3bedc813fRed Hat Security Advisory 2019-1602-01 - The kernel-alt packages provide the Linux kernel version 4.x. Issues addressed include a denial of service vulnerability.
44681c017f6cb6453545b8a6d66047878734200ddb425c65cba895080004b65aRed Hat Security Advisory 2019-1594-01 - The redhat-virtualization-host packages provide the Red Hat Virtualization Host. These packages include redhat-release-virtualization-host, ovirt-node, and rhev-hypervisor. Red Hat Virtualization Hosts are installed using a special build of Red Hat Enterprise Linux with only the packages required to host virtual machines. RHVH features a Cockpit user interface for monitoring the host's resources and performing administrative tasks. Issues addressed include a denial of service vulnerability.
42cc94d32edd63d60d4201b04d197d324050b9d1d3c45b0f2c6a12cc47a4bf7fJonathan Looney discovered that an integer overflow existed in the Linux kernel when handling TCP Selective Acknowledgments (SACKs). A remote attacker could use this to cause a denial of service (system crash). Jonathan Looney discovered that the TCP retransmission queue implementation in the Linux kernel could be fragmented when handling certain TCP Selective Acknowledgment (SACK) sequences. A remote attacker could use this to cause a denial of service.
180fed7fbe08b89246da448a793e20ef76b9d263407b8a46ed5a13a5f4acca3bDebian Linux Security Advisory 4465-1 - Several vulnerabilities have been discovered in the Linux kernel that may lead to a privilege escalation, denial of service or information leaks.
6462989fedaf07301b47a2563bc368b80ca7dfd5c7c7901bf9c00004dffd9a54Netflix has identified several TCP networking vulnerabilities in FreeBSD and Linux kernels. The vulnerabilities specifically relate to the minimum segment size (MSS) and TCP Selective Acknowledgement (SACK) capabilities. The most serious, dubbed _"SACK Panic_," allows a remotely-triggered kernel panic on recent Linux kernels. There are patches that address most of these vulnerabilities. If patches can not be applied, certain mitigations will be effective.
2842c96d7b20ef5dfb0f2ea06c76a1334026b1cbd1953a2b31793af5c8fa3ba7Ubuntu Security Notice 4017-1 - Jonathan Looney discovered that the TCP retransmission queue implementation in the Linux kernel could be fragmented when handling certain TCP Selective Acknowledgment sequences. A remote attacker could use this to cause a denial of service. Jonathan Looney discovered that an integer overflow existed in the Linux kernel when handling TCP Selective Acknowledgments. A remote attacker could use this to cause a denial of service. Various other issues were also addressed.
2ab9f2ea541fb87d5442119d176290275584ea5d729e49d87b6cbc935e08db2fUbuntu Security Notice 4017-2 - USN-4017-1 fixed vulnerabilities in the Linux kernel for Ubuntu. This update provides the corresponding updates for the Linux kernel for Ubuntu 16.04 ESM and Ubuntu 14.04 ESM. Jonathan Looney discovered that the TCP retransmission queue implementation in the Linux kernel could be fragmented when handling certain TCP Selective Acknowledgment sequences. A remote attacker could use this to cause a denial of service. Various other issues were also addressed.
30e2333d67524b336901c1f182fff58c9210ce78ed27a0ac681b4be3e438caf3Red Hat Security Advisory 2019-1487-01 - The kernel-rt packages provide the Real Time Linux Kernel, which enables fine-tuning for systems with extremely high determinism requirements. Issues addressed include a denial of service vulnerability.
0d2aaa315473f7fa3a1600801f003ad4d585fa316b9020702470ab42aa378bd8Red Hat Security Advisory 2019-1480-01 - The kernel-rt packages provide the Real Time Linux Kernel, which enables fine-tuning for systems with extremely high determinism requirements. Issues addressed include denial of service and null pointer vulnerabilities.
c97e7d7b7daed86df070782d936f28a68af605c9244804de5e179400e81ca993Red Hat Security Advisory 2019-1486-01 - The kernel-rt packages provide the Real Time Linux Kernel, which enables fine-tuning for systems with extremely high determinism requirements. Issues addressed include a denial of service vulnerability.
3b19d9f90b3322583fe432930185cc3333492df8f763d78f061e16cce38059d8Red Hat Security Advisory 2019-1484-01 - The kernel packages contain the Linux kernel, the core of any Linux operating system. Issues addressed include a denial of service vulnerability.
3d44d46f20f4b63aab3926091c4a7283983615692caed360939015cc0501c44eRed Hat Security Advisory 2019-1490-01 - The kernel packages contain the Linux kernel, the core of any Linux operating system. Issues addressed include a denial of service vulnerability.
8ff8a4848bb7ccf144f2c1a413bac038475598248dcae1cd4b41d6039ff19148Red Hat Security Advisory 2019-1485-01 - The kernel packages contain the Linux kernel, the core of any Linux operating system. Issues addressed include a denial of service vulnerability.
d2d4b02a2eb600606a322cd02179cf3900afb40269dbf46e0d969667deee3520Red Hat Security Advisory 2019-1489-01 - The kernel packages contain the Linux kernel, the core of any Linux operating system. Issues addressed include a denial of service vulnerability.
45b0b86f0772a80cc1b08646f305ac44ef788c7c7d7a00cea44bafbdd0d9212cRed Hat Security Advisory 2019-1483-01 - The kernel packages contain the Linux kernel, the core of any Linux operating system. Issues addressed include a denial of service vulnerability.
1a217d5cefbb5641eb992dc6b0dcebb39c2cfb20983cf620352b394e13385350Red Hat Security Advisory 2019-1482-01 - The kernel packages contain the Linux kernel, the core of any Linux operating system. Issues addressed include a denial of service vulnerability.
3c26d4933de700ed32008fe232bf0b5b481901ed98030cd7f187ee8bd9089962Red Hat Security Advisory 2019-1481-01 - The kernel packages contain the Linux kernel, the core of any Linux operating system. Issues addressed include a denial of service vulnerability.
6cfbd3f8626c8697fb5f0b62389cf6843e06ee0a60d5467b234d8a9835929288Red Hat Security Advisory 2019-1488-01 - The kernel packages contain the Linux kernel, the core of any Linux operating system. Issues addressed include a denial of service vulnerability.
36497ea43fe2cdf62445777995772c09d638c95ec67c2d50cc020453b75700e3Red Hat Security Advisory 2019-1479-01 - The kernel packages contain the Linux kernel, the core of any Linux operating system. Issues addressed include denial of service and null pointer vulnerabilities.
97113cfbe30fbceebe6aa05a8dc231cec04e7b0aa68aa9598e713c3f798a8800
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