CVE-2018-1087 Affecting kernel-uek-firmware package, versions <0:4.1.12-124.14.5.el6uek


Severity

Recommended
0.0
high
0
10

Based on Oracle Linux security rating.

Threat Intelligence

EPSS
0.07% (33rd percentile)

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  • Snyk IDSNYK-ORACLE6-KERNELUEKFIRMWARE-2531363
  • published10 Apr 2022
  • disclosed15 May 2018

Introduced: 15 May 2018

CVE-2018-1087  (opens in a new tab)

How to fix?

Upgrade Oracle:6 kernel-uek-firmware to version 0:4.1.12-124.14.5.el6uek or higher.
This issue was patched in ELSA-2018-4096.

NVD Description

Note: Versions mentioned in the description apply only to the upstream kernel-uek-firmware package and not the kernel-uek-firmware package as distributed by Oracle. See How to fix? for Oracle:6 relevant fixed versions and status.

kernel KVM before versions kernel 4.16, kernel 4.16-rc7, kernel 4.17-rc1, kernel 4.17-rc2 and kernel 4.17-rc3 is vulnerable to a flaw in the way the Linux kernel's KVM hypervisor handled exceptions delivered after a stack switch operation via Mov SS or Pop SS instructions. During the stack switch operation, the processor did not deliver interrupts and exceptions, rather they are delivered once the first instruction after the stack switch is executed. An unprivileged KVM guest user could use this flaw to crash the guest or, potentially, escalate their privileges in the guest.