CVE-2019-15538 — Uncontrolled Resource Consumption in Kernel

CWE-400 — Uncontrolled Resource Consumption12 documents8 sources
Severity
7.5HIGHNVD
OSV7.8OSV7.4
EPSS
16.4%
top 5.11%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
6
Linux KernelDebian LinuxCanonical Ubuntu Linux+3 more
Timeline
PublishedAug 25
Latest updateMay 24

Description

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.

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:HExploitability: 3.9 | Impact: 3.6

Affected Packages5 packages

▶NVDlinux/linux_kernel4.7 — 4.9.191+4
▶Debianlinux/linux_kernel< 5.2.17-1+3
▶Ubuntulinux/linux_kernel< 4.15.0-65.74
▶debiandebian/linux< linux 5.2.17-1 (bookworm)
▶NVDopensuse/leap15.0, 15.1+1

Also affects: Debian Linux 8.0, Ubuntu Linux 16.04, 18.04, 19.04, Fedora 29, 30

Patches

Patch: git.kernel.org ↗Patch: github.com ↗Patch: git.kernel.org ↗

🔴Vulnerability Details

4
GHSA
GHSA-5v37-529g-93gg: An issue was discovered in xfs_setattr_nonsize in fs/xfs/xfs_iops↗2022-05-24
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OSV
linux, linux-aws, linux-azure, linux-gcp, linux-gke-5.0, linux-hwe, linux-kvm, linux-raspi2, linux-snapdragon vulnerabilities↗2019-10-04
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OSV
linux, linux-aws, linux-aws-hwe, linux-azure, linux-hwe, linux-kvm, linux-oem, linux-oracle, linux-raspi2, linux-snapdragon vulnerabilities↗2019-10-01
▶
OSV
CVE-2019-15538: An issue was discovered in xfs_setattr_nonsize in fs/xfs/xfs_iops↗2019-08-25
▶

📋Vendor Advisories

4
Ubuntu
Linux kernel vulnerabilities↗2019-10-04
▶
Ubuntu
Linux kernel vulnerabilities↗2019-10-01
▶
Red Hat
kernel: denial of service in in xfs_setattr_nonsize in fs/xfs/xfs_iops.c↗2019-08-25
▶
Debian
CVE-2019-15538: linux - An issue was discovered in xfs_setattr_nonsize in fs/xfs/xfs_iops.c in the Linux...↗2019
▶

📄Research Papers

1
arXiv
The Security War in File Systems: An Empirical Study from A Vulnerability-Centric Perspective↗2022-04-26
▶

💬Community

2
Bugzilla
CVE-2019-15538 kernel: denial of service in in xfs_setattr_nonsize in fs/xfs/xfs_iops.c [fedora-all]↗2019-08-29
▶
Bugzilla
CVE-2019-15538 kernel: denial of service in in xfs_setattr_nonsize in fs/xfs/xfs_iops.c↗2019-08-29
▶