CVE-2019-15538: canonical ubuntu_linux Uncontrolled Resource Consumption
Vulnerability summary
CVE-2019-15538 is a high (CVSS 7.8) Uncontrolled Resource Consumption vulnerability in canonical ubuntu_linux. EPSS estimates a 3.92% chance of exploitation in the next 30 days, higher than 90.3% of scored vulnerabilities.
Severe, CVSS 7.5 (NVD); no exploitation reported by the 5 checked sources; EPSS 4% (FIRST, 03-11-2026)
Source freshness unavailable
How is this decided?Advisory lineage
Upstream 0 · Downstream 14 · Related 12Timeline
- 25-08-2019PublishedVulnerability first disclosed.
- 05-08-2024Last modifiedVulnerability information updated.
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 metrics
4 scores · 3 sources · 2 versions- OSV · UbuntuEcosystem advisory · calculated7.5HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- OSV · DebianEcosystem advisory · calculated7.5HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
EPSS trend
Probability
3.92%
Chance of exploitation in the next 30 days
Percentile
90%
Versus all other CVEs
30-day change
No change 0.00 pp
From 3.92% on 04-10-2026
Known exploited
Compare KEV catalogs
CISA KEVNot in the CISA KEV catalog.
ENISA CNWNot in the ENISA CNW catalog.
CIRCLNot in the CIRCL catalog.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Known conditions: network-reachable, no authentication, no user interaction (CVSS vector). Other conditions: not stated in public data.
Ubuntu24 products
- linux< 4.15.0-65.74
- linux-aws< 4.15.0-1051.53
- linux-aws-fips< 4.15.0-2018.18 | All versions (No fix recorded)
- linux-aws-hwe< 4.15.0-1051.53~16.04.1
- linux-azure< 4.15.0-1060.65~14.04.1 | < 4.15.0-1060.65 | < 5.0.0-1022.23~18.04.1
Netapp13 products
Debian2 products
- linux< 5.2.17-1
- debian_linuxEOL8.0
Canonical1 product
- ubuntu_linuxEOL16.04 | 18.04 | 19.04
Fedoraproject1 product
- fedoraEOL29 | 30
Linux1 product
- linux_kernel≥ 4.7, < 4.9.191 | ≥ 4.14, < 4.14.141 | ≥ 4.19, < 4.19.69 | ≥ 5.2, < 5.2.11 | 5.3 | 5.3:rc1 | 5.3:rc2 | 5.3:rc3 | 5.3:rc4 | 5.3:rc5 | 5.3:rc6
Opensuse1 product
- leapEOL15.0 | 15.1
7 vendors · 43 products
References
22 links- lore.kernel.org/linux-xfs/20190823035528.GH1037422%40magnolia/X Refsource MISC
- lore.kernel.org/linux-xfs/20190823192433.GA8736%40eldamar.localX Refsource MISC
- github.com/torvalds/linux/commit/1fb254aa983bf190cfd685d40c64a480a9bafaeeX Refsource MISCPatchThird Party AdvisoryREPORT
lists.debian.org/debian-lts-announce/2019/09/msg00014.htmlMailing ListX Refsource MLISTThird Party Advisory- lists.debian.org/debian-lts-announce/2019/09/msg00015.htmlMailing ListX Refsource MLISTThird Party Advisory
- lists.opensuse.org/opensuse-security-announce/2019-09/msg00064.htmlVendor AdvisoryX Refsource SUSEMailing ListThird Party Advisory
- lists.opensuse.org/opensuse-security-announce/2019-09/msg00066.htmlVendor AdvisoryX Refsource SUSEMailing ListThird Party Advisory