Resource Exhaustion Affecting perf-debuginfo package, versions <0:4.14.143-91.122.amzn1


Severity

Recommended
medium

Based on Amazon Linux security rating.

Threat Intelligence

EPSS
2.52% (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 Learn

Learn about Resource Exhaustion vulnerabilities in an interactive lesson.

Start learning
  • Snyk IDSNYK-AMZN201803-PERFDEBUGINFO-1718966
  • published27 Sept 2021
  • disclosed25 Aug 2019

Introduced: 25 Aug 2019

CVE-2019-15538  (opens in a new tab)
CWE-400  (opens in a new tab)

How to fix?

Upgrade Amazon-Linux:2018.03 perf-debuginfo to version 0:4.14.143-91.122.amzn1 or higher.
This issue was patched in ALAS-2019-1281.

NVD Description

Note: Versions mentioned in the description apply only to the upstream perf-debuginfo package and not the perf-debuginfo package as distributed by Amazon-Linux. See How to fix? for Amazon-Linux:2018.03 relevant fixed versions and status.

An issue was discovered in xfs_setattr_nonsize in fs/xfs/xfs_iops.c in the Linux kernel through 5.2.9. XFS partially wedges when a chgrp fails on account of being out of disk quota. xfs_setattr_nonsize is failing to unlock the ILOCK after the xfs_qm_vop_chown_reserve call fails. This is primarily a local DoS attack vector, but it might result as well in remote DoS if the XFS filesystem is exported for instance via NFS.

References

CVSS Scores

version 3.1