UBUNTU-CVE-2022-27672
When SMT is enabled, certain AMD processors may speculatively execute instructions using a target from the sibling thread after an SMT mode switch potentially resulting in information disclosure.
02 / AFFECTED SOFTWARE
Affected packages
12 explicit affected versions
20 explicit affected versions
50 explicit affected versions
3 explicit affected versions
6 explicit affected versions
12 explicit affected versions
6 explicit affected versions
29 explicit affected versions
15 explicit affected versions
42 explicit affected versions
26 explicit affected versions
15 explicit affected versions
21 explicit affected versions
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23 explicit affected versions
68 explicit affected versions
54 explicit affected versions
35 explicit affected versions
12 explicit affected versions
84 explicit affected versions
10 explicit affected versions
70 explicit affected versions
13 explicit affected versions
4 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
25 explicit affected versions
7 explicit affected versions
12 explicit affected versions
13 explicit affected versions
12 explicit affected versions
7 explicit affected versions
60 explicit affected versions
12 explicit affected versions
73 explicit affected versions
2 explicit affected versions
3 explicit affected versions
81 explicit affected versions
12 explicit affected versions
71 explicit affected versions
10 explicit affected versions
37 explicit affected versions
4 explicit affected versions
1 explicit affected versions
12 explicit affected versions
26 explicit affected versions
13 explicit affected versions
1 explicit affected versions
29 explicit affected versions
62 explicit affected versions
13 explicit affected versions
26 explicit affected versions
1 explicit affected versions
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25 explicit affected versions
73 explicit affected versions
33 explicit affected versions
23 explicit affected versions
10 explicit affected versions
12 explicit affected versions
82 explicit affected versions
11 explicit affected versions
12 explicit affected versions
105 explicit affected versions
7 explicit affected versions
72 explicit affected versions
15 explicit affected versions
7 explicit affected versions
98 explicit affected versions
23 explicit affected versions
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26 explicit affected versions
7 explicit affected versions
105 explicit affected versions
32 explicit affected versions
15 explicit affected versions
26 explicit affected versions
16 explicit affected versions
59 explicit affected versions
1 explicit affected versions
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50 explicit affected versions
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12 explicit affected versions
14 explicit affected versions
3 explicit affected versions
3 explicit affected versions
1 explicit affected versions
1 explicit affected versions
63 explicit affected versions
5 explicit affected versions
1 explicit affected versions
61 explicit affected versions
13 explicit affected versions
27 explicit affected versions
60 explicit affected versions
18 explicit affected versions
10 explicit affected versions
3 explicit affected versions
12 explicit affected versions
60 explicit affected versions
44 explicit affected versions
16 explicit affected versions
13 explicit affected versions
26 explicit affected versions
12 explicit affected versions
37 explicit affected versions
38 explicit affected versions
16 explicit affected versions
9 explicit affected versions
16 explicit affected versions
6 explicit affected versions
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23 explicit affected versions
33 explicit affected versions
7 explicit affected versions
109 explicit affected versions
88 explicit affected versions
4 explicit affected versions
21 explicit affected versions
81 explicit affected versions
43 explicit affected versions
27 explicit affected versions
132 explicit affected versions
4 explicit affected versions
61 explicit affected versions
4 explicit affected versions
50 explicit affected versions
1 explicit affected versions
35 explicit affected versions
03 / CONNECTIONS
Connected vulnerabilities
04 / EVIDENCE
Source records
When SMT is enabled, certain AMD processors may speculatively execute instructions using a target from the sibling thread after an SMT mode switch potentially resulting in information disclosure.
05 / REFERENCES
Further evidence
- https://kernel.org/doc/html//next/admin-guide/hw-vuln/cross-thread-rsb.html
- https://ubuntu.com/security/CVE-2022-27672
- https://ubuntu.com/security/notices/USN-5978-1
- https://ubuntu.com/security/notices/USN-6079-1
- https://ubuntu.com/security/notices/USN-6080-1
- https://ubuntu.com/security/notices/USN-6085-1
- https://ubuntu.com/security/notices/USN-6090-1
- https://ubuntu.com/security/notices/USN-6091-1
- https://ubuntu.com/security/notices/USN-6096-1
- https://ubuntu.com/security/notices/USN-6133-1
- https://ubuntu.com/security/notices/USN-6134-1
- https://ubuntu.com/security/notices/USN-6284-1
- https://ubuntu.com/security/notices/USN-6301-1
- https://ubuntu.com/security/notices/USN-6312-1
- https://ubuntu.com/security/notices/USN-6314-1
- https://ubuntu.com/security/notices/USN-6331-1
- https://ubuntu.com/security/notices/USN-6337-1
- https://ubuntu.com/security/notices/USN-6385-1
- https://ubuntu.com/security/notices/USN-6396-1
- https://ubuntu.com/security/notices/USN-6396-2
- https://ubuntu.com/security/notices/USN-6396-3
- https://www.amd.com/en/corporate/product-security/bulletin/AMD-SB-1045
- https://www.amd.com/en/corporate/product-security/bulletin/amd-sb-1045
- https://www.cve.org/CVERecord?id=CVE-2022-27672
- https://www.openwall.com/lists/oss-security/2023/02/14/4
- https://xenbits.xen.org/xsa/advisory-426.html