Cleartext Storage of Sensitive Information Affecting kernel-rt-kvm package, versions <0:3.10.0-327.22.2.rt56.230.el7_2


Severity

high

    Threat Intelligence

    EPSS
    2.68% (91st percentile)

Do your applications use this vulnerable package?

In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.

Test your applications
  • Snyk ID SNYK-CENTOS7-KERNELRTKVM-2066305
  • published 26 Jul 2021
  • disclosed 17 May 2016

How to fix?

Upgrade Centos:7 kernel-rt-kvm to version 0:3.10.0-327.22.2.rt56.230.el7_2 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream kernel-rt-kvm package and not the kernel-rt-kvm package as distributed by Centos. See How to fix? for Centos:7 relevant fixed versions and status.

The icmp_check_sysrq function in net/ipv4/icmp.c in the kernel.org projects/rt patches for the Linux kernel, as used in the kernel-rt package before 3.10.0-327.22.1 in Red Hat Enterprise Linux for Real Time 7 and other products, allows remote attackers to execute SysRq commands via crafted ICMP Echo Request packets, as demonstrated by a brute-force attack to discover a cookie, or an attack that occurs after reading the local icmp_echo_sysrq file.

CVSS Scores

version 3.1
Expand this section

Snyk

6.5 high
  • Attack Vector (AV)
    Network
  • Attack Complexity (AC)
    Low
  • Privileges Required (PR)
    None
  • User Interaction (UI)
    Required
  • Scope (S)
    Unchanged
  • Confidentiality (C)
    None
  • Integrity (I)
    None
  • Availability (A)
    High
Expand this section

NVD

8.1 high
Expand this section

Red Hat

6.5 medium