CVE-2018-18690
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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.
Affected
Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.
Remediation
No guide yetNo remediation guidance has been written for this CVE yet. What the record does show:
Patch and advisory references
- http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=7b38460dc8e4eafba06c78f8e37099d3b34d473c
- https://bugzilla.kernel.org/show_bug.cgi?id=199119
- https://github.com/torvalds/linux/commit/7b38460dc8e4eafba06c78f8e37099d3b34d473c
- https://usn.ubuntu.com/3847-1/
- https://usn.ubuntu.com/3847-2/
References (15)
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