CVE-2018-18690

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.

References

https://usn.ubuntu.com/3849-2/

https://usn.ubuntu.com/3849-1/

https://usn.ubuntu.com/3848-2/

https://usn.ubuntu.com/3848-1/

https://usn.ubuntu.com/3847-3/

https://usn.ubuntu.com/3847-2/

https://usn.ubuntu.com/3847-1/

https://lists.debian.org/debian-lts-announce/2019/04/msg00004.html

https://lists.debian.org/debian-lts-announce/2019/03/msg00034.html

https://lists.debian.org/debian-lts-announce/2019/03/msg00017.html

https://github.com/torvalds/linux/commit/7b38460dc8e4eafba06c78f8e37099d3b34d473c

https://bugzilla.suse.com/show_bug.cgi?id=1105025

https://bugzilla.kernel.org/show_bug.cgi?id=199119

http://www.securityfocus.com/bid/105753

http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=7b38460dc8e4eafba06c78f8e37099d3b34d473c

Details

Source: Mitre, NVD

Risk Information

CVSS v2

CVSS v3