File _patchinfo of Package patchinfo.10589

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File _patchinfo of Package patchinfo.10589

<patchinfo incident="10589">
  <issue id="1103098" tracker="bnc">VUL-0: CVE-2018-5391: kernel live patch: FragmentSmack (IP fragments) (CVE-2018-5391)</issue>
  <issue id="1124734" tracker="bnc">VUL-0: CVE-2019-7221: kernel live patch: KVM: nVMX: use-after-free of the hrtimer for emulation of the preemption timer</issue>
  <issue id="1128378" tracker="bnc">VUL-0: CVE-2019-9213: kernel live patch: mm: enforce min addr even if capable() in expand_downwards()</issue>
  <issue id="2018-5391" tracker="cve" />
  <issue id="2019-7221" tracker="cve" />
  <issue id="2019-9213" tracker="cve" />
  <category>security</category>
  <rating>important</rating>
  <packager>mbenes</packager>
  <description>This update for the Linux Kernel 3.12.61-52_125 fixes several issues.

The following security issues were fixed:

- CVE-2019-9213: Expand_downwards in mm/mmap.c lacked a check for the mmap minimum address, which made it easier for attackers to exploit kernel NULL pointer dereferences on non-SMAP platforms. This is related to a capability check for the wrong task (bsc#1128378).
- CVE-2019-7221: Fixed a user-after-free vulnerability in the KVM hypervisor related to the emulation of a preemption timer, allowing an guest user/process to crash the host kernel. (bsc#1124734).
- CVE-2018-5391: The Linux kernel was vulnerable to a denial of service attack with low rates of specially modified packets targeting IP fragment re-assembly. An attacker might have caused a denial of service condition by sending specially crafted IP fragments. Various vulnerabilities in IP fragmentation have been discovered and fixed over the years. The current vulnerability (CVE-2018-5391) became exploitable in the Linux kernel with the increase of the IP fragment reassembly queue size (bsc#1103098).
</description>
<summary>Security update for the Linux Kernel (Live Patch 33 for SLE 12)</summary>
</patchinfo>

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