Home/CVE/An issue was discovered in xfs_setattr_nonsize in fs/xfs/xfs_iops.c in the Linux kernel through 5.2.9. XFS partially wed
CVE

CVE-2019-15538

An issue was discovered in xfs_setattr_nonsize in fs/xfs/xfs_iops.c in the Linux kernel through 5.2.9. XFS partially wed

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.

HIGH · CVSS 7.5 EPSS 0.16428
Schedule remediation
  • EPSS ≥ 0.10 - elevated exploitation probability
  • EPSS percentile: top 5% of all CVEs by exploitation likelihood
  • CVSS base score ≥ 7.0
Sigma rules0 YARA rules0
⬡

Weakness Classification

CWE-400Uncontrolled Resource Consumption
▤

Affected Products & Versions

22
linux kernel>= 4.7 and < 4.9.191
linux kernel>= 4.14 and < 4.14.141
linux kernel>= 4.19 and < 4.19.69
linux kernel>= 5.2 and < 5.2.11
linux kernelall versions
canonical ubuntu linuxall versions
netapp data availability servicesall versions
netapp hci management nodeall versions
▣

Scoring & Timeline

7.5
HIGH · CVSS v3.1 · cve@mitre.org
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD25 Aug 2019 · 04:15 PM
CVSS VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
⚑

Vendor Advisories

13
rhsaRHSA-2020:2104Important
suse-csafSUSE-SU-2019:2756-1
suse-csafSUSE-SU-2019:2738-1
suse-csafSUSE-SU-2019:2651-1
suse-csafSUSE-SU-2019:2658-1
🔗

References & Sources

14
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
http://lists.opensuse.org/opensuse-security-announce/2019-09/msg00064.htmlMailing ListThird Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2019-09/msg00066.htmlMailing ListThird Party Advisory
https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=1fb254aa983bf190cfd685d40c64a480a9bafaeeMailing ListPatchVendor Advisory
https://github.com/torvalds/linux/commit/1fb254aa983bf190cfd685d40c64a480a9bafaeePatchThird Party Advisory
https://lists.debian.org/debian-lts-announce/2019/09/msg00014.htmlMailing ListThird Party Advisory
https://lists.debian.org/debian-lts-announce/2019/09/msg00015.htmlMailing ListThird Party Advisory
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