UBUNTU-CVE-2018-1092
The ext4_iget function in fs/ext4/inode.c in the Linux kernel through 4.15.15 mishandles the case of a root directory with a zero i_links_count, which allows attackers to cause a denial of service (ext4_process_freed_data NULL pointer dereference and OOPS) via a crafted ext4 image.
02 / AFFECTED SOFTWARE
Affected packages
45 explicit affected versions
3 explicit affected versions
6 explicit affected versions
61 explicit affected versions
6 explicit affected versions
11 explicit affected versions
1 explicit affected versions
8 explicit affected versions
12 explicit affected versions
7 explicit affected versions
1 explicit affected versions
14 explicit affected versions
136 explicit affected versions
6 explicit affected versions
23 explicit affected versions
53 explicit affected versions
48 explicit affected versions
12 explicit affected versions
7 explicit affected versions
13 explicit affected versions
14 explicit affected versions
7 explicit affected versions
75 explicit affected versions
51 explicit affected versions
15 explicit affected versions
7 explicit affected versions
34 explicit affected versions
6 explicit affected versions
26 explicit affected versions
5 explicit affected versions
34 explicit affected versions
3 explicit affected versions
1 explicit affected versions
03 / CONNECTIONS
Connected vulnerabilities
04 / EVIDENCE
Source records
The ext4_iget function in fs/ext4/inode.c in the Linux kernel through 4.15.15 mishandles the case of a root directory with a zero i_links_count, which allows attackers to cause a denial of service (ext4_process_freed_data NULL pointer dereference and OOPS) via a crafted ext4 image.
05 / REFERENCES
Further evidence
- https://bugzilla.kernel.org/show_bug.cgi?id=199179
- https://ubuntu.com/security/CVE-2018-1092
- https://ubuntu.com/security/notices/USN-3676-1
- https://ubuntu.com/security/notices/USN-3676-2
- https://ubuntu.com/security/notices/USN-3677-1
- https://ubuntu.com/security/notices/USN-3677-2
- https://ubuntu.com/security/notices/USN-3678-1
- https://ubuntu.com/security/notices/USN-3678-2
- https://ubuntu.com/security/notices/USN-3678-3
- https://ubuntu.com/security/notices/USN-3678-4
- https://ubuntu.com/security/notices/USN-3754-1
- https://www.cve.org/CVERecord?id=CVE-2018-1092