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.
02 / AFFECTED SOFTWARE
Affected packages
55 explicit affected versions
14 explicit affected versions
6 explicit affected versions
61 explicit affected versions
17 explicit affected versions
7 explicit affected versions
22 explicit affected versions
1 explicit affected versions
8 explicit affected versions
12 explicit affected versions
1 explicit affected versions
23 explicit affected versions
142 explicit affected versions
17 explicit affected versions
23 explicit affected versions
63 explicit affected versions
57 explicit affected versions
19 explicit affected versions
23 explicit affected versions
24 explicit affected versions
7 explicit affected versions
85 explicit affected versions
5 explicit affected versions
51 explicit affected versions
28 explicit affected versions
7 explicit affected versions
44 explicit affected versions
19 explicit affected versions
26 explicit affected versions
16 explicit affected versions
44 explicit affected versions
3 explicit affected versions
1 explicit affected versions
03 / CONNECTIONS
Connected vulnerabilities
04 / EVIDENCE
Source records
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.
05 / REFERENCES
Further evidence
- https://ubuntu.com/security/CVE-2018-18690
- https://ubuntu.com/security/notices/USN-3847-1
- https://ubuntu.com/security/notices/USN-3847-2
- https://ubuntu.com/security/notices/USN-3847-3
- https://ubuntu.com/security/notices/USN-3848-1
- https://ubuntu.com/security/notices/USN-3848-2
- https://ubuntu.com/security/notices/USN-3849-1
- https://ubuntu.com/security/notices/USN-3849-2
- https://www.cve.org/CVERecord?id=CVE-2018-18690