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SUSE-SU-2019:3230-1

Опубликовано: 10 дек. 2019
Источник: suse-cvrf

Описание

Security update for the Linux Kernel (Live Patch 28 for SLE 12 SP3)

This update for the Linux Kernel 4.4.180-94_103 fixes several issues.

The following security issues were fixed:

  • CVE-2019-13272: Fixed a privilege escalation from user to root due to improper handling of credentials by leveraging certain scenarios with a parent-child process relationship (bsc#1156321).
  • CVE-2019-15239: Fixed a vulnerability where a local attacker could have triggered multiple use-after-free conditions resulted in privilege escalation (bsc#1156317).
  • CVE-2019-10220: Fixed an issue where samba servers could inject relative paths in directory entry lists (bsc#1153108).

The following bugs were fixed:

  • Fixed boot up hang revealed by int3 self test (bsc#1157770).

Список пакетов

SUSE Linux Enterprise Live Patching 12 SP4
kgraft-patch-4_12_14-95_19-default-5-2.1
SUSE Linux Enterprise Live Patching 15 SP1
kernel-livepatch-4_12_14-197_7-default-6-2.1
SUSE Linux Enterprise Server 12 SP3-LTSS
kgraft-patch-4_4_180-94_103-default-4-2.1
SUSE Linux Enterprise Server for SAP Applications 12 SP3
kgraft-patch-4_4_180-94_103-default-4-2.1

Ссылки

Описание

Linux kernel CIFS implementation, version 4.9.0 is vulnerable to a relative paths injection in directory entry lists.

Затронутые продукты
SUSE Linux Enterprise Live Patching 12 SP4:kgraft-patch-4_12_14-95_19-default-5-2.1
SUSE Linux Enterprise Live Patching 15 SP1:kernel-livepatch-4_12_14-197_7-default-6-2.1
SUSE Linux Enterprise Server 12 SP3-LTSS:kgraft-patch-4_4_180-94_103-default-4-2.1
SUSE Linux Enterprise Server for SAP Applications 12 SP3:kgraft-patch-4_4_180-94_103-default-4-2.1
Ссылки

Описание

In the Linux kernel before 5.1.17, ptrace_link in kernel/ptrace.c mishandles the recording of the credentials of a process that wants to create a ptrace relationship, which allows local users to obtain root access by leveraging certain scenarios with a parent-child process relationship, where a parent drops privileges and calls execve (potentially allowing control by an attacker). One contributing factor is an object lifetime issue (which can also cause a panic). Another contributing factor is incorrect marking of a ptrace relationship as privileged, which is exploitable through (for example) Polkit's pkexec helper with PTRACE_TRACEME. NOTE: SELinux deny_ptrace might be a usable workaround in some environments.

Затронутые продукты
SUSE Linux Enterprise Live Patching 12 SP4:kgraft-patch-4_12_14-95_19-default-5-2.1
SUSE Linux Enterprise Live Patching 15 SP1:kernel-livepatch-4_12_14-197_7-default-6-2.1
SUSE Linux Enterprise Server 12 SP3-LTSS:kgraft-patch-4_4_180-94_103-default-4-2.1
SUSE Linux Enterprise Server for SAP Applications 12 SP3:kgraft-patch-4_4_180-94_103-default-4-2.1
Ссылки

Описание

In the Linux kernel, a certain net/ipv4/tcp_output.c change, which was properly incorporated into 4.16.12, was incorrectly backported to the earlier longterm kernels, introducing a new vulnerability that was potentially more severe than the issue that was intended to be fixed by backporting. Specifically, by adding to a write queue between disconnection and re-connection, a local attacker can trigger multiple use-after-free conditions. This can result in a kernel crash, or potentially in privilege escalation. NOTE: this affects (for example) Linux distributions that use 4.9.x longterm kernels before 4.9.190 or 4.14.x longterm kernels before 4.14.139.

Затронутые продукты
SUSE Linux Enterprise Live Patching 12 SP4:kgraft-patch-4_12_14-95_19-default-5-2.1
SUSE Linux Enterprise Live Patching 15 SP1:kernel-livepatch-4_12_14-197_7-default-6-2.1
SUSE Linux Enterprise Server 12 SP3-LTSS:kgraft-patch-4_4_180-94_103-default-4-2.1
SUSE Linux Enterprise Server for SAP Applications 12 SP3:kgraft-patch-4_4_180-94_103-default-4-2.1
Ссылки
Уязвимость SUSE-SU-2019:3230-1