UBUNTU-CVE-2022-23960
Certain Arm Cortex and Neoverse processors through 2022-03-08 do not properly restrict cache speculation, aka Spectre-BHB. An attacker can leverage the shared branch history in the Branch History Buffer (BHB) to influence mispredicted branches. Then, cache allocation can allow the attacker to obtain sensitive information.
02 / AFFECTED SOFTWARE
Affected packages
1 explicit affected versions
50 explicit affected versions
6 explicit affected versions
12 explicit affected versions
6 explicit affected versions
57 explicit affected versions
20 explicit affected versions
191 explicit affected versions
83 explicit affected versions
46 explicit affected versions
63 explicit affected versions
36 explicit affected versions
15 explicit affected versions
95 explicit affected versions
4 explicit affected versions
4 explicit affected versions
121 explicit affected versions
23 explicit affected versions
1 explicit affected versions
1 explicit affected versions
21 explicit affected versions
7 explicit affected versions
5 explicit affected versions
7 explicit affected versions
12 explicit affected versions
1 explicit affected versions
3 explicit affected versions
12 explicit affected versions
11 explicit affected versions
58 explicit affected versions
12 explicit affected versions
49 explicit affected versions
120 explicit affected versions
10 explicit affected versions
61 explicit affected versions
1 explicit affected versions
1 explicit affected versions
26 explicit affected versions
144 explicit affected versions
1 explicit affected versions
29 explicit affected versions
13 explicit affected versions
77 explicit affected versions
1 explicit affected versions
51 explicit affected versions
23 explicit affected versions
10 explicit affected versions
188 explicit affected versions
62 explicit affected versions
11 explicit affected versions
12 explicit affected versions
7 explicit affected versions
49 explicit affected versions
2 explicit affected versions
81 explicit affected versions
165 explicit affected versions
46 explicit affected versions
1 explicit affected versions
17 explicit affected versions
39 explicit affected versions
4 explicit affected versions
1 explicit affected versions
1 explicit affected versions
43 explicit affected versions
5 explicit affected versions
1 explicit affected versions
38 explicit affected versions
13 explicit affected versions
6 explicit affected versions
39 explicit affected versions
10 explicit affected versions
4 explicit affected versions
36 explicit affected versions
44 explicit affected versions
16 explicit affected versions
13 explicit affected versions
38 explicit affected versions
9 explicit affected versions
39 explicit affected versions
97 explicit affected versions
17 explicit affected versions
93 explicit affected versions
70 explicit affected versions
4 explicit affected versions
26 explicit affected versions
61 explicit affected versions
39 explicit affected versions
43 explicit affected versions
6 explicit affected versions
110 explicit affected versions
40 explicit affected versions
4 explicit affected versions
1 explicit affected versions
17 explicit affected versions
03 / CONNECTIONS
Connected vulnerabilities
04 / EVIDENCE
Source records
Certain Arm Cortex and Neoverse processors through 2022-03-08 do not properly restrict cache speculation, aka Spectre-BHB. An attacker can leverage the shared branch history in the Branch History Buffer (BHB) to influence mispredicted branches. Then, cache allocation can allow the attacker to obtain sensitive information.
05 / REFERENCES
Further evidence
- https://developer.arm.com/documentation/ka004995/latest/
- https://developer.arm.com/support/arm-security-updates/speculative-processor-vulnerability/spectre-bhb
- https://ubuntu.com/security/CVE-2022-23960
- https://ubuntu.com/security/notices/USN-5317-1
- https://ubuntu.com/security/notices/USN-5318-1
- https://ubuntu.com/security/notices/USN-5362-1
- https://wiki.ubuntu.com/SecurityTeam/KnowledgeBase/BHI
- https://www.cve.org/CVERecord?id=CVE-2022-23960
- https://www.vusec.net/projects/bhi-spectre-bhb/