UBUNTU-CVE-2022-33744
Arm guests can cause Dom0 DoS via PV devices When mapping pages of guests on Arm, dom0 is using an rbtree to keep track of the foreign mappings. Updating of that rbtree is not always done completely with the related lock held, resulting in a small race window, which can be used by unprivileged guests via PV devices to cause inconsistencies of the rbtree. These inconsistencies can lead to Denial of Service (DoS) of dom0, e.g. by causing crashes or the inability to perform further mappings of other guests' memory pages.
02 / AFFECTED SOFTWARE
Affected packages
4 explicit affected versions
9 explicit affected versions
50 explicit affected versions
3 explicit affected versions
6 explicit affected versions
12 explicit affected versions
6 explicit affected versions
17 explicit affected versions
2 explicit affected versions
26 explicit affected versions
13 explicit affected versions
4 explicit affected versions
10 explicit affected versions
191 explicit affected versions
89 explicit affected versions
11 explicit affected versions
52 explicit affected versions
69 explicit affected versions
41 explicit affected versions
35 explicit affected versions
3 explicit affected versions
102 explicit affected versions
1 explicit affected versions
13 explicit affected versions
4 explicit affected versions
121 explicit affected versions
23 explicit affected versions
3 explicit affected versions
1 explicit affected versions
1 explicit affected versions
21 explicit affected versions
16 explicit affected versions
10 explicit affected versions
7 explicit affected versions
12 explicit affected versions
3 explicit affected versions
12 explicit affected versions
1 explicit affected versions
7 explicit affected versions
12 explicit affected versions
57 explicit affected versions
16 explicit affected versions
2 explicit affected versions
3 explicit affected versions
65 explicit affected versions
12 explicit affected versions
55 explicit affected versions
120 explicit affected versions
44 explicit affected versions
10 explicit affected versions
37 explicit affected versions
66 explicit affected versions
1 explicit affected versions
2 explicit affected versions
26 explicit affected versions
13 explicit affected versions
144 explicit affected versions
1 explicit affected versions
29 explicit affected versions
13 explicit affected versions
83 explicit affected versions
14 explicit affected versions
1 explicit affected versions
13 explicit affected versions
57 explicit affected versions
33 explicit affected versions
16 explicit affected versions
10 explicit affected versions
12 explicit affected versions
188 explicit affected versions
68 explicit affected versions
11 explicit affected versions
12 explicit affected versions
91 explicit affected versions
7 explicit affected versions
55 explicit affected versions
2 explicit affected versions
4 explicit affected versions
1 explicit affected versions
11 explicit affected versions
86 explicit affected versions
165 explicit affected versions
53 explicit affected versions
26 explicit affected versions
14 explicit affected versions
5 explicit affected versions
1 explicit affected versions
23 explicit affected versions
34 explicit affected versions
45 explicit affected versions
12 explicit affected versions
5 explicit affected versions
1 explicit affected versions
1 explicit affected versions
49 explicit affected versions
5 explicit affected versions
47 explicit affected versions
1 explicit affected versions
44 explicit affected versions
13 explicit affected versions
12 explicit affected versions
45 explicit affected versions
6 explicit affected versions
10 explicit affected versions
12 explicit affected versions
41 explicit affected versions
44 explicit affected versions
16 explicit affected versions
13 explicit affected versions
37 explicit affected versions
38 explicit affected versions
4 explicit affected versions
9 explicit affected versions
4 explicit affected versions
7 explicit affected versions
12 explicit affected versions
45 explicit affected versions
97 explicit affected versions
22 explicit affected versions
7 explicit affected versions
99 explicit affected versions
76 explicit affected versions
4 explicit affected versions
32 explicit affected versions
9 explicit affected versions
67 explicit affected versions
45 explicit affected versions
43 explicit affected versions
12 explicit affected versions
117 explicit affected versions
45 explicit affected versions
4 explicit affected versions
34 explicit affected versions
1 explicit affected versions
23 explicit affected versions
03 / CONNECTIONS
Connected vulnerabilities
04 / EVIDENCE
Source records
Arm guests can cause Dom0 DoS via PV devices When mapping pages of guests on Arm, dom0 is using an rbtree to keep track of the foreign mappings. Updating of that rbtree is not always done completely with the related lock held, resulting in a small race window, which can be used by unprivileged guests via PV devices to cause inconsistencies of the rbtree. These inconsistencies can lead to Denial of Service (DoS) of dom0, e.g. by causing crashes or the inability to perform further mappings of other guests' memory pages.
05 / REFERENCES
Further evidence
- http://www.openwall.com/lists/oss-security/2022/07/05/4
- http://xenbits.xen.org/xsa/advisory-406.html
- https://ubuntu.com/security/CVE-2022-33744
- https://ubuntu.com/security/notices/USN-5623-1
- https://ubuntu.com/security/notices/USN-5624-1
- https://ubuntu.com/security/notices/USN-5633-1
- https://ubuntu.com/security/notices/USN-5635-1
- https://ubuntu.com/security/notices/USN-5640-1
- https://ubuntu.com/security/notices/USN-5644-1
- https://ubuntu.com/security/notices/USN-5648-1
- https://ubuntu.com/security/notices/USN-5655-1
- https://ubuntu.com/security/notices/USN-5668-1
- https://ubuntu.com/security/notices/USN-5669-1
- https://ubuntu.com/security/notices/USN-5669-2
- https://ubuntu.com/security/notices/USN-5677-1
- https://ubuntu.com/security/notices/USN-5678-1
- https://ubuntu.com/security/notices/USN-5679-1
- https://ubuntu.com/security/notices/USN-5682-1
- https://ubuntu.com/security/notices/USN-5683-1
- https://ubuntu.com/security/notices/USN-5684-1
- https://ubuntu.com/security/notices/USN-5687-1
- https://ubuntu.com/security/notices/USN-5695-1
- https://ubuntu.com/security/notices/USN-5706-1
- https://www.cve.org/CVERecord?id=CVE-2022-33744
- https://xenbits.xen.org/xsa/advisory-406.html
- https://xenbits.xenproject.org/xsa/advisory-406.txt