Red Hat Security Advisory 2016-1939-01 - The kernel packages contain the Linux kernel, the core of any Linux operating system. Security Fix: It was found that the RFC 5961 challenge ACK rate limiting as implemented in the Linux kernel's networking subsystem allowed an off-path attacker to leak certain information about a given connection by creating congestion on the global challenge ACK rate limit counter and then measuring the changes by probing packets. An off-path attacker could use this flaw to either terminate TCP connection and/or inject payload into non-secured TCP connection between two endpoints on the network.
2e89712d5d9a3a6580bbe1199d40bc6f01d0d90d8dc5606a0a1f3917f336791dRed Hat Security Advisory 2016-1815-01 - The kernel packages contain the Linux kernel, the core of any Linux operating system. Security Fix: It was found that the RFC 5961 challenge ACK rate limiting as implemented in the Linux kernel's networking subsystem allowed an off-path attacker to leak certain information about a given connection by creating congestion on the global challenge ACK rate limit counter and then measuring the changes by probing packets. An off-path attacker could use this flaw to either terminate TCP connection and/or inject payload into non-secured TCP connection between two endpoints on the network.
bf40fbfe1a0e86049a5628f4f5b05226e502134156a6e1eb628b8faa3940d8e3Red Hat Security Advisory 2016-1814-01 - The kernel packages contain the Linux kernel, the core of any Linux operating system. Security Fix: A flaw was found in the way certain interfaces of the Linux kernel's Infiniband subsystem used write() as bi-directional ioctl() replacement, which could lead to insufficient memory security checks when being invoked using the splice() system call. A local unprivileged user on a system with either Infiniband hardware present or RDMA Userspace Connection Manager Access module explicitly loaded, could use this flaw to escalate their privileges on the system.
7ecc5e780bf4a3d7d9b078ec0bd14c1560abfa0b265f2decc427f3de37c9de86Debian Linux Security Advisory 3659-1 - Several vulnerabilities have been discovered in the Linux kernel that may lead to a privilege escalation, denial of service or have other impacts.
34eebbdd80f3917515dc8fdfe39d800c85fd501120d4534f5b22993fb96f5040Ubuntu Security Notice 3070-4 - USN-3070-1 fixed vulnerabilities in the Linux kernel for Ubuntu 16.04 LTS. This update provides the corresponding updates for the Linux Hardware Enablement kernel from Ubuntu 16.04 LTS for Ubuntu 14.04 LTS. A missing permission check when settings ACLs was discovered in nfsd. A local user could exploit this flaw to gain access to any file by setting an ACL. Various other issues were also addressed.
54515843f175f0f9bcd9acc3ab889613ddf0f05fd7d32658882565e31cc06142Ubuntu Security Notice 3070-3 - A missing permission check when settings ACLs was discovered in nfsd. A local user could exploit this flaw to gain access to any file by setting an ACL. Kangjie Lu discovered an information leak in the Reliable Datagram Sockets implementation in the Linux kernel. A local attacker could use this to obtain potentially sensitive information from kernel memory. Various other issues were also addressed.
94afc7eeef9ca08145fbcd09d2933660867345939bcddffa924773452fa63bdeUbuntu Security Notice 3070-2 - A missing permission check when settings ACLs was discovered in nfsd. A local user could exploit this flaw to gain access to any file by setting an ACL. Kangjie Lu discovered an information leak in the Reliable Datagram Sockets implementation in the Linux kernel. A local attacker could use this to obtain potentially sensitive information from kernel memory. Various other issues were also addressed.
ea8ebece878c9ec1bdb289ff938356e56dc9c698e0e7b55ac18137e6e45dca21Ubuntu Security Notice 3072-2 - Kangjie Lu discovered an information leak in the Reliable Datagram Sockets implementation in the Linux kernel. A local attacker could use this to obtain potentially sensitive information from kernel memory. Yue Cao et al discovered a flaw in the TCP implementation's handling of challenge acks in the Linux kernel. A remote attacker could use this to cause a denial of service or inject content into an TCP stream. Various other issues were also addressed.
96d0691fb37a717dc4538398d603c1ba2926fb7655c3ca0e94e6f32b862548e3Ubuntu Security Notice 3072-1 - Kangjie Lu discovered an information leak in the Reliable Datagram Sockets implementation in the Linux kernel. A local attacker could use this to obtain potentially sensitive information from kernel memory. Yue Cao et al discovered a flaw in the TCP implementation's handling of challenge acks in the Linux kernel. A remote attacker could use this to cause a denial of service or inject content into an TCP stream. Various other issues were also addressed.
87c2db82b8e8252d7c63bb9b84f22240a7da51fef03461bf0f74053a53450993Ubuntu Security Notice 3071-2 - USN-3071-1 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. Kangjie Lu discovered an information leak in the Reliable Datagram Sockets implementation in the Linux kernel. A local attacker could use this to obtain potentially sensitive information from kernel memory. Various other issues were also addressed.
3566417846c77d69e8d6e988ac18f853f3f5643c015dda7a7a0b163ac03ba13eUbuntu Security Notice 3071-1 - Kangjie Lu discovered an information leak in the Reliable Datagram Sockets implementation in the Linux kernel. A local attacker could use this to obtain potentially sensitive information from kernel memory. Yue Cao et al discovered a flaw in the TCP implementation's handling of challenge acks in the Linux kernel. A remote attacker could use this to cause a denial of service or inject content into an TCP stream. Various other issues were also addressed.
390d0ea5ed263a891c9e578a8e5adc5d81a3abf7979689b597c1dbe2ca6e2c3dUbuntu Security Notice 3070-1 - A missing permission check when settings ACLs was discovered in nfsd. A local user could exploit this flaw to gain access to any file by setting an ACL. Kangjie Lu discovered an information leak in the Reliable Datagram Sockets implementation in the Linux kernel. A local attacker could use this to obtain potentially sensitive information from kernel memory. Various other issues were also addressed.
671f73e3980f6ab5eb3168e9a016890390d6371acb18fd3ee5f1267d933eeb9dRed Hat Security Advisory 2016-1664-01 - The kernel packages contain the Linux kernel, the core of any Linux operating system. Security Fix: It was found that the RFC 5961 challenge ACK rate limiting as implemented in the Linux kernel's networking subsystem allowed an off-path attacker to leak certain information about a given connection by creating congestion on the global challenge ACK rate limit counter and then measuring the changes by probing packets. An off-path attacker could use this flaw to either terminate TCP connection and/or inject payload into non-secured TCP connection between two endpoints on the network.
b542c16421a0053cf74470ceee19661e1c59fcea30d437e8dabde33c44a48c25Red Hat Security Advisory 2016-1657-01 - The kernel packages contain the Linux kernel, the core of any Linux operating system. Security Fix: A flaw was found in the Linux kernel's keyring handling code, where in key_reject_and_link() an uninitialised variable would eventually lead to arbitrary free address which could allow attacker to use a use-after-free style attack. A flaw was found in the way certain interfaces of the Linux kernel's Infiniband subsystem used write() as bi-directional ioctl() replacement, which could lead to insufficient memory security checks when being invoked using the splice() system call. A local unprivileged user on a system with either Infiniband hardware present or RDMA Userspace Connection Manager Access module explicitly loaded, could use this flaw to escalate their privileges on the system.
4043f793bb96834574d7f4614976b19cff587e4500e977d8646b0c4f8fcb4824Red Hat Security Advisory 2016-1631-01 - The kernel-rt packages provide the Real Time Linux Kernel, which enables fine-tuning for systems with extremely high determinism requirements. It was found that the RFC 5961 challenge ACK rate limiting as implemented in the Linux kernel's networking subsystem allowed an off-path attacker to leak certain information about a given connection by creating congestion on the global challenge ACK rate limit counter and then measuring the changes by probing packets. An off-path attacker could use this flaw to either terminate TCP connection and/or inject payload into non-secured TCP connection between two endpoints on the network.
a869fc76b055e377510ce13c31d628e026b50c3ca981408ba82ff4baa52d68d9Red Hat Security Advisory 2016-1633-01 - The kernel packages contain the Linux kernel, the core of any Linux operating system. It was found that the RFC 5961 challenge ACK rate limiting as implemented in the Linux kernel's networking subsystem allowed an off-path attacker to leak certain information about a given connection by creating congestion on the global challenge ACK rate limit counter and then measuring the changes by probing packets. An off-path attacker could use this flaw to either terminate TCP connection and/or inject payload into non-secured TCP connection between two endpoints on the network.
76e8269f2ffea4406d6a46faca836f6cf6a3366b59719c43dab6771962c84226Red Hat Security Advisory 2016-1632-01 - The kernel-rt packages provide the Real Time Linux Kernel, which enables fine-tuning for systems with extremely high determinism requirements. It was found that the RFC 5961 challenge ACK rate limiting as implemented in the Linux kernel's networking subsystem allowed an off-path attacker to leak certain information about a given connection by creating congestion on the global challenge ACK rate limit counter and then measuring the changes by probing packets. An off-path attacker could use this flaw to either terminate TCP connection and/or inject payload into non-secured TCP connection between two endpoints on the network.
53ce3406a7c473638621aaebd562708e9cad26efd134e6eae0d57abd91ca5b7b
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