UBUNTU-CVE-2022-33743
network backend may cause Linux netfront to use freed SKBs While adding logic to support XDP (eXpress Data Path), a code label was moved in a way allowing for SKBs having references (pointers) retained for further processing to nevertheless be freed.
02 / AFFECTED SOFTWARE
Affected packages
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
13 explicit affected versions
4 explicit affected versions
10 explicit affected versions
11 explicit affected versions
30 explicit affected versions
3 explicit affected versions
1 explicit affected versions
13 explicit affected versions
4 explicit affected versions
23 explicit affected versions
3 explicit affected versions
1 explicit affected versions
21 explicit affected versions
16 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
2 explicit affected versions
3 explicit affected versions
12 explicit affected versions
37 explicit affected versions
26 explicit affected versions
13 explicit affected versions
29 explicit affected versions
13 explicit affected versions
14 explicit affected versions
13 explicit affected versions
33 explicit affected versions
16 explicit affected versions
10 explicit affected versions
12 explicit affected versions
11 explicit affected versions
12 explicit affected versions
7 explicit affected versions
4 explicit affected versions
1 explicit affected versions
11 explicit affected versions
14 explicit affected versions
14 explicit affected versions
5 explicit affected versions
12 explicit affected versions
5 explicit affected versions
5 explicit affected versions
13 explicit affected versions
6 explicit affected versions
10 explicit affected versions
12 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
7 explicit affected versions
4 explicit affected versions
9 explicit affected versions
43 explicit affected versions
4 explicit affected versions
1 explicit affected versions
4 explicit affected versions
03 / CONNECTIONS
Connected vulnerabilities
04 / EVIDENCE
Source records
network backend may cause Linux netfront to use freed SKBs While adding logic to support XDP (eXpress Data Path), a code label was moved in a way allowing for SKBs having references (pointers) retained for further processing to nevertheless be freed.
05 / REFERENCES
Further evidence
- http://www.openwall.com/lists/oss-security/2022/07/05/5
- http://xenbits.xen.org/xsa/advisory-405.html
- https://ubuntu.com/security/CVE-2022-33743
- 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-5683-1
- https://ubuntu.com/security/notices/USN-5773-1
- https://ubuntu.com/security/notices/USN-5789-1
- https://www.cve.org/CVERecord?id=CVE-2022-33743
- https://xenbits.xen.org/xsa/advisory-405.html
- https://xenbits.xenproject.org/xsa/advisory-405.txt