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Execution with Unnecessary Privileges Affecting perf package, versions <0:2.6.32-754.2.1.el6

Severity

 Recommended
high

Based on CentOS security rating.

Threat Intelligence

EPSS
0.06% (27th percentile)

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  • Snyk IDSNYK-CENTOS6-PERF-2152286
  • published26 Jul 2021
  • disclosed10 Jul 2018
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Introduced: 10 Jul 2018

CVE-2018-10872  (opens in a new tab)
CWE-250  (opens in a new tab)

How to fix?

Upgrade Centos:6 perf to version 0:2.6.32-754.2.1.el6 or higher.

NVD Description

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

A flaw was found in the way the Linux kernel handled exceptions delivered after a stack switch operation via Mov SS or Pop SS instructions. During the stack switch operation, processor does not deliver interrupts and exceptions, they are delivered once the first instruction after the stack switch is executed. An unprivileged system user could use this flaw to crash the system kernel resulting in DoS. This CVE-2018-10872 was assigned due to regression of CVE-2018-8897 in Red Hat Enterprise Linux 6.10 GA kernel. No other versions are affected by this CVE.