CVE-2018-18690 Detail

Current 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.


View Analysis Description

Severity



CVSS 3.x Severity and Metrics:

NIST CVSS score
NIST: NVD
Base Score:  5.5 MEDIUM
Vector:  CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H


NVD Analysts use publicly available information to associate vector strings and CVSS scores. We also display any CVSS information provided within the CVE List from the CNA.

Note: NVD Analysts have published a CVSS score for this CVE based on publicly available information at the time of analysis. The CNA has not provided a score within the CVE List.

References to Advisories, Solutions, and Tools

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Hyperlink Resource
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=7b38460dc8e4eafba06c78f8e37099d3b34d473c Patch  Vendor Advisory 
http://www.securityfocus.com/bid/105753 Third Party Advisory  VDB Entry 
https://bugzilla.kernel.org/show_bug.cgi?id=199119 Exploit  Issue Tracking  Vendor Advisory 
https://bugzilla.suse.com/show_bug.cgi?id=1105025 Issue Tracking  Third Party Advisory 
https://github.com/torvalds/linux/commit/7b38460dc8e4eafba06c78f8e37099d3b34d473c Patch  Third Party Advisory 
https://lists.debian.org/debian-lts-announce/2019/03/msg00017.html Mailing List  Third Party Advisory 
https://lists.debian.org/debian-lts-announce/2019/03/msg00034.html Mailing List  Third Party Advisory 
https://lists.debian.org/debian-lts-announce/2019/04/msg00004.html Mailing 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 

Weakness Enumeration

CWE-ID CWE Name Source
CWE-754 Improper Check for Unusual or Exceptional Conditions cwe source acceptance level NIST  

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Change History

10 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2018-18690
NVD Published Date:
10/26/2018
NVD Last Modified:
10/02/2019
Source:
MITRE