CVE-2018-18690
In the Linux kernel before 4.17, a local attacker able to set attributes on an xfs filesystem could make this filesystem non-operational until the next mount by triggering an unchecked error condition during an xfs attribute change, because…
Does this matter?
Lower severity and a low EPSS score (0.68%). Track it; it rarely justifies an emergency change on its own.
Description
In the Linux kernel before 4.17, a local attacker able to set attributes on an xfs filesystem could make this filesystem non-operational until the next mount by triggering an unchecked error condition during an xfs attribute change, because xfs_attr_shortform_addname in fs/xfs/libxfs/xfs_attr.c mishandles ATTR_REPLACE operations with conversion of an attr from short to long form.
- CVSS 3.0
- 5.5 MEDIUMCVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- EPSS
- 0.68% probability · 51th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-754
- Affected
- linux/linux kernel · canonical/ubuntu linux · debian/debian linux
- Source
- cve@mitre.org
References
- http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=7b38460dc8e4eafba06c78f8e37099d3b34d473cPatch, Vendor Advisory
- http://www.securityfocus.com/bid/105753Third Party Advisory, VDB Entry
- https://bugzilla.kernel.org/show_bug.cgi?id=199119Exploit, Issue Tracking, Vendor Advisory
- https://bugzilla.suse.com/show_bug.cgi?id=1105025Issue Tracking, Third Party Advisory
- https://github.com/torvalds/linux/commit/7b38460dc8e4eafba06c78f8e37099d3b34d473cPatch, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2019/03/msg00017.htmlMailing List, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2019/03/msg00034.htmlMailing List, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2019/04/msg00004.htmlMailing List, Third Party Advisory
- https://usn.ubuntu.com/3847-1/Third Party Advisory
- https://usn.ubuntu.com/3847-2/Third Party Advisory
- https://usn.ubuntu.com/3847-3/Third Party Advisory
- https://usn.ubuntu.com/3848-1/Third Party Advisory
- https://usn.ubuntu.com/3848-2/Third Party Advisory
- https://usn.ubuntu.com/3849-1/Third Party Advisory
- https://usn.ubuntu.com/3849-2/Third Party Advisory
- http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=7b38460dc8e4eafba06c78f8e37099d3b34d473cPatch, Vendor Advisory
- http://www.securityfocus.com/bid/105753Third Party Advisory, VDB Entry
- https://bugzilla.kernel.org/show_bug.cgi?id=199119Exploit, Issue Tracking, Vendor Advisory
- https://bugzilla.suse.com/show_bug.cgi?id=1105025Issue Tracking, Third Party Advisory
- https://github.com/torvalds/linux/commit/7b38460dc8e4eafba06c78f8e37099d3b34d473cPatch, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2019/03/msg00017.htmlMailing List, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2019/03/msg00034.htmlMailing List, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2019/04/msg00004.htmlMailing List, Third Party Advisory
- https://usn.ubuntu.com/3847-1/Third Party Advisory
- https://usn.ubuntu.com/3847-2/Third Party Advisory
- https://usn.ubuntu.com/3847-3/Third Party Advisory
- https://usn.ubuntu.com/3848-1/Third Party Advisory
- https://usn.ubuntu.com/3848-2/Third Party Advisory
- https://usn.ubuntu.com/3849-1/Third Party Advisory
- https://usn.ubuntu.com/3849-2/Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.