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UBUNTU-CVE-2018-18690 Moderate

UBUNTU-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 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.

Exploit probability Not scored
Published October 26, 2018
Required by Not available
Last source change August 17, 2026

02 / AFFECTED SOFTWARE

Affected packages

Ubuntu:16.04:LTS linux-snapdragon

55 explicit affected versions

Ubuntu:18.04:LTS linux-oem

14 explicit affected versions

Ubuntu:20.04:LTS linux-raspi2

6 explicit affected versions

Ubuntu:Pro:20.04:LTS linux-azure-fde-5.15

61 explicit affected versions

Ubuntu:18.04:LTS linux-aws

17 explicit affected versions

Ubuntu:24.04:LTS linux-azure-6.11

7 explicit affected versions

Ubuntu:18.04:LTS linux

22 explicit affected versions

Ubuntu:24.04:LTS linux-raspi-realtime

1 explicit affected versions

Ubuntu:24.04:LTS linux-hwe-6.11

8 explicit affected versions

Ubuntu:20.04:LTS linux-riscv

12 explicit affected versions

Ubuntu:22.04:LTS linux-intel-iot-realtime

1 explicit affected versions

Ubuntu:16.04:LTS linux-kvm

23 explicit affected versions

Ubuntu:14.04:LTS linux

142 explicit affected versions

Ubuntu:18.04:LTS linux-kvm

17 explicit affected versions

Ubuntu:22.04:LTS linux-riscv

23 explicit affected versions

Ubuntu:14.04:LTS linux-lts-xenial

63 explicit affected versions

Ubuntu:16.04:LTS linux-raspi2

57 explicit affected versions

Ubuntu:18.04:LTS linux-raspi2

19 explicit affected versions

Ubuntu:14.04:LTS linux-aws

23 explicit affected versions

Ubuntu:16.04:LTS linux-gcp

24 explicit affected versions

Ubuntu:24.04:LTS linux-gcp-6.11

7 explicit affected versions

Ubuntu:16.04:LTS linux

85 explicit affected versions

Ubuntu:14.04:LTS linux-azure

5 explicit affected versions

Ubuntu:20.04:LTS linux-gke

51 explicit affected versions

Ubuntu:16.04:LTS linux-azure

28 explicit affected versions

Ubuntu:24.04:LTS linux-lowlatency-hwe-6.11

7 explicit affected versions

Ubuntu:16.04:LTS linux-aws

44 explicit affected versions

Ubuntu:18.04:LTS linux-azure

19 explicit affected versions

Ubuntu:20.04:LTS linux-azure-fde

26 explicit affected versions

Ubuntu:18.04:LTS linux-gcp

16 explicit affected versions

Ubuntu:16.04:LTS linux-hwe

44 explicit affected versions

Ubuntu:Pro:FIPS:16.04:LTS linux-fips

3 explicit affected versions

Ubuntu:22.04:LTS linux-realtime

1 explicit affected versions

03 / CONNECTIONS

Connected vulnerabilities

related USN-3849-2

04 / EVIDENCE

Source records

Open Source Vulnerabilities UBUNTU-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 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 original source

05 / REFERENCES

Further evidence