SB2019082809 - Denial of service in Linux kernel

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Main Vulnerability Database SB2019082809

SB2019082809 - Denial of service in Linux kernel

Published: August 28, 2019

Security Bulletin ID SB2019082809
CSH Severity
Medium
Patch available
YES
Number of vulnerabilities 1
Exploitation vector Local access
Highest impact Denial of service

Breakdown by Severity

Medium 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 1 vulnerability.


1) Resource management error (CVE-ID: CVE-2019-15538)

CWE-ID: CWE-399 - Resource Management Errors

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green


The vulnerability allows a local attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to buggy implementation of quotas in "xfs_setattr_nonsize" in the "fs/xfs/xfs_iops.c" file. A local attacker can send specially crafted requests to the affected system and perform denial of service attack.

Note: This vulnerability can be exploited remotely, if XFS filesystem is exported for instance via NFS.


Remediation

Install update from vendor's website.

References