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SUSE-SU-2015:1490-1

Опубликовано: 14 авг. 2015
Источник: suse-cvrf

Описание

Live patch for the Linux Kernel

This update contains a kernel live patch for the 3.12.43-52.6 SUSE Linux Enterprise Server 12 Kernel, fixing following security issues.

  • CVE-2015-5364/CVE-2015-5366: Two denial of service attacks via a flood of UDP packets with invalid checksums were fixed that could be used by remote attackers to delay execution. (bsc#939276)

  • CVE-2015-1805: The (1) pipe_read and (2) pipe_write implementations in fs/pipe.c in the Linux kernel did not properly consider the side effects of failed __copy_to_user_inatomic and __copy_from_user_inatomic calls, which allowed local users to cause a denial of service (system crash) or possibly gain privileges via a crafted application, aka an 'I/O vector array overrun.' (bsc#939270)

  • CVE-2015-4700: A BPF Jit optimization flaw could allow local users to panic the kernel. (bsc#939273)

Список пакетов

SUSE Linux Enterprise Live Patching 12
kgraft-patch-3_12_43-52_6-default-2-6.1
kgraft-patch-3_12_43-52_6-xen-2-6.1

Ссылки

Описание

The (1) pipe_read and (2) pipe_write implementations in fs/pipe.c in the Linux kernel before 3.16 do not properly consider the side effects of failed __copy_to_user_inatomic and __copy_from_user_inatomic calls, which allows local users to cause a denial of service (system crash) or possibly gain privileges via a crafted application, aka an "I/O vector array overrun."

Затронутые продукты
SUSE Linux Enterprise Live Patching 12:kgraft-patch-3_12_43-52_6-default-2-6.1
SUSE Linux Enterprise Live Patching 12:kgraft-patch-3_12_43-52_6-xen-2-6.1
Ссылки

Описание

The bpf_int_jit_compile function in arch/x86/net/bpf_jit_comp.c in the Linux kernel before 4.0.6 allows local users to cause a denial of service (system crash) by creating a packet filter and then loading crafted BPF instructions that trigger late convergence by the JIT compiler.

Затронутые продукты
SUSE Linux Enterprise Live Patching 12:kgraft-patch-3_12_43-52_6-default-2-6.1
SUSE Linux Enterprise Live Patching 12:kgraft-patch-3_12_43-52_6-xen-2-6.1
Ссылки

Описание

The (1) udp_recvmsg and (2) udpv6_recvmsg functions in the Linux kernel before 4.0.6 do not properly consider yielding a processor, which allows remote attackers to cause a denial of service (system hang) via incorrect checksums within a UDP packet flood.

Затронутые продукты
SUSE Linux Enterprise Live Patching 12:kgraft-patch-3_12_43-52_6-default-2-6.1
SUSE Linux Enterprise Live Patching 12:kgraft-patch-3_12_43-52_6-xen-2-6.1
Ссылки

Описание

The (1) udp_recvmsg and (2) udpv6_recvmsg functions in the Linux kernel before 4.0.6 provide inappropriate -EAGAIN return values, which allows remote attackers to cause a denial of service (EPOLLET epoll application read outage) via an incorrect checksum in a UDP packet, a different vulnerability than CVE-2015-5364.

Затронутые продукты
SUSE Linux Enterprise Live Patching 12:kgraft-patch-3_12_43-52_6-default-2-6.1
SUSE Linux Enterprise Live Patching 12:kgraft-patch-3_12_43-52_6-xen-2-6.1
Ссылки