CVE-2019-15538
What it is
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.
At a glance
- Exploitability
- Can be exploited over the network without logging in. High risk of service disruption.
- Exploit odds
- 3.9% chance of exploitation in the next 30 days (EPSS).
- Fix
- A patch, advisory or fixed version is referenced. Upgrade or apply it.
Timeline
- PublishedDisclosed publicly on CVE.org and NVD
- Last updatedMost recent change to the record
Why it ranks here
- Exploited in the wild: no, CISA does not list it.
- Exploit odds: 3.9% in the next 30 days (EPSS).
- Severity: 7.5 HIGH (CVSS).
- Fix: a patch or advisory is linked.
Details
- Published
- Last modified
- Exploit probability
- 3.9% · EPSS, next 30 days
- Weakness
- CWE-400 · Uncontrolled resource consumption
- Record status
- Modified
Affected
- Linux Kernel < 4.9.191
- Linux Kernel < 4.14.141
- Linux Kernel < 4.19.69
- Linux Kernel < 5.2.11
- Linux Kernel 5.3
- Canonical Ubuntu Linux 16.04
- Canonical Ubuntu Linux 18.04
- Canonical Ubuntu Linux 19.04
Attack profile CVSS 3.1 · 7.5
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- None
- Integrity
- None
- Availability
- High
Raw vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Is it in your code?
Hand this to your coding agent. It searches your project for the affected products and checks versions. Nothing leaves your machine.
Read https://cve-list.com/agent/cve/CVE-2019-15538.md and follow it. Check whether this project is affected by CVE-2019-15538. Read only. Don't change anything and don't upload my code. Tell me yes, no or not sure, with the file as proof.
Fix and advisories
- https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=1fb254aa983bf190cfd685d40c64a480a9bafaee
- https://github.com/torvalds/linux/commit/1fb254aa983bf190cfd685d40c64a480a9bafaee
- https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=1fb254aa983bf190cfd685d40c64a480a9bafaee
- https://github.com/torvalds/linux/commit/1fb254aa983bf190cfd685d40c64a480a9bafaee
References
- http://lists.opensuse.org/opensuse-security-announce/2019-09/msg00064.html
- http://lists.opensuse.org/opensuse-security-announce/2019-09/msg00066.html
- https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=1fb254aa983bf190cfd685d40c64a480a9bafaee
- https://github.com/torvalds/linux/commit/1fb254aa983bf190cfd685d40c64a480a9bafaee
- https://lists.debian.org/debian-lts-announce/2019/09/msg00014.html
- https://lists.debian.org/debian-lts-announce/2019/09/msg00015.html
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/O3RUDQJXRJQVGHCGR4YZWTQ3ECBI7TXH/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/T4JZ6AEUKFWBHQAROGMQARJ274PQP2QP/
- https://lore.kernel.org/linux-xfs/20190823035528.GH1037422%40magnolia/
- https://lore.kernel.org/linux-xfs/20190823192433.GA8736%40eldamar.local
- https://security.netapp.com/advisory/ntap-20191004-0001/
- https://support.f5.com/csp/article/K32592426?utm_source=f5support&%3Butm_medium=RSS
- https://usn.ubuntu.com/4144-1/
- https://usn.ubuntu.com/4147-1/
- http://lists.opensuse.org/opensuse-security-announce/2019-09/msg00064.html
- http://lists.opensuse.org/opensuse-security-announce/2019-09/msg00066.html
- https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=1fb254aa983bf190cfd685d40c64a480a9bafaee
- https://github.com/torvalds/linux/commit/1fb254aa983bf190cfd685d40c64a480a9bafaee
- https://lists.debian.org/debian-lts-announce/2019/09/msg00014.html
- https://lists.debian.org/debian-lts-announce/2019/09/msg00015.html
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/O3RUDQJXRJQVGHCGR4YZWTQ3ECBI7TXH/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/T4JZ6AEUKFWBHQAROGMQARJ274PQP2QP/
- https://lore.kernel.org/linux-xfs/20190823035528.GH1037422%40magnolia/
- https://lore.kernel.org/linux-xfs/20190823192433.GA8736%40eldamar.local
- https://security.netapp.com/advisory/ntap-20191004-0001/