External Control of Critical State Data Affecting kernel package, versions <0:3.10.0-123.4.4.el7


Severity

Recommended
0.0
high
0
10

Based on Red Hat Enterprise Linux security rating

    Threat Intelligence

    Exploit Maturity
    Mature
    EPSS
    0.04% (1st percentile)

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  • Snyk ID SNYK-RHEL7-KERNEL-7951449
  • published 14 Sep 2024
  • disclosed 4 Jul 2014

How to fix?

Upgrade RHEL:7 kernel to version 0:3.10.0-123.4.4.el7 or higher.
This issue was patched in RHSA-2014:0923.

NVD Description

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

The Linux kernel before 3.15.4 on Intel processors does not properly restrict use of a non-canonical value for the saved RIP address in the case of a system call that does not use IRET, which allows local users to leverage a race condition and gain privileges, or cause a denial of service (double fault), via a crafted application that makes ptrace and fork system calls.

References

CVSS Scores

version 3.1
Expand this section

NVD

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

Red Hat

7.8 high