UBUNTU-CVE-2022-2196
A regression exists in the Linux Kernel within KVM: nVMX that allowed for speculative execution attacks. L2 can carry out Spectre v2 attacks on L1 due to L1 thinking it doesn't need retpolines or IBPB after running L2 due to KVM (L0) advertising eIBRS support to L1. An attacker at L2 with code execution can execute code on an indirect branch on the host machine. We recommend upgrading to Kernel 6.2 or applying the relevant stable backports (v5.4.233, v5.10.170, v5.15.96, v6.1.14).
02 / AFFECTED SOFTWARE
Affected packages
11 explicit affected versions
17 explicit affected versions
50 explicit affected versions
6 explicit affected versions
12 explicit affected versions
6 explicit affected versions
26 explicit affected versions
12 explicit affected versions
34 explicit affected versions
23 explicit affected versions
12 explicit affected versions
18 explicit affected versions
2 explicit affected versions
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60 explicit affected versions
34 explicit affected versions
9 explicit affected versions
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13 explicit affected versions
4 explicit affected versions
23 explicit affected versions
1 explicit affected versions
21 explicit affected versions
16 explicit affected versions
17 explicit affected versions
7 explicit affected versions
12 explicit affected versions
10 explicit affected versions
12 explicit affected versions
7 explicit affected versions
12 explicit affected versions
65 explicit affected versions
24 explicit affected versions
73 explicit affected versions
12 explicit affected versions
62 explicit affected versions
37 explicit affected versions
2 explicit affected versions
8 explicit affected versions
26 explicit affected versions
13 explicit affected versions
29 explicit affected versions
13 explicit affected versions
23 explicit affected versions
22 explicit affected versions
65 explicit affected versions
33 explicit affected versions
23 explicit affected versions
10 explicit affected versions
11 explicit affected versions
12 explicit affected versions
7 explicit affected versions
64 explicit affected versions
12 explicit affected versions
6 explicit affected versions
20 explicit affected versions
62 explicit affected versions
2 explicit affected versions
19 explicit affected versions
3 explicit affected versions
7 explicit affected versions
23 explicit affected versions
13 explicit affected versions
31 explicit affected versions
41 explicit affected versions
12 explicit affected versions
12 explicit affected versions
3 explicit affected versions
2 explicit affected versions
1 explicit affected versions
5 explicit affected versions
54 explicit affected versions
53 explicit affected versions
13 explicit affected versions
19 explicit affected versions
15 explicit affected versions
10 explicit affected versions
3 explicit affected versions
12 explicit affected versions
49 explicit affected versions
44 explicit affected versions
16 explicit affected versions
13 explicit affected versions
9 explicit affected versions
37 explicit affected versions
38 explicit affected versions
13 explicit affected versions
9 explicit affected versions
13 explicit affected versions
3 explicit affected versions
21 explicit affected versions
53 explicit affected versions
28 explicit affected versions
4 explicit affected versions
18 explicit affected versions
52 explicit affected versions
43 explicit affected versions
19 explicit affected versions
53 explicit affected versions
4 explicit affected versions
42 explicit affected versions
1 explicit affected versions
03 / CONNECTIONS
Connected vulnerabilities
04 / EVIDENCE
Source records
A regression exists in the Linux Kernel within KVM: nVMX that allowed for speculative execution attacks. L2 can carry out Spectre v2 attacks on L1 due to L1 thinking it doesn't need retpolines or IBPB after running L2 due to KVM (L0) advertising eIBRS support to L1. An attacker at L2 with code execution can execute code on an indirect branch on the host machine. We recommend upgrading to Kernel 6.2 or applying the relevant stable backports (v5.4.233, v5.10.170, v5.15.96, v6.1.14).
05 / REFERENCES
Further evidence
- https://git.kernel.org/linus/2e7eab81425ad6c875f2ed47c0ce01e78afc38a5
- https://ubuntu.com/security/CVE-2022-2196
- https://ubuntu.com/security/notices/USN-5970-1
- https://ubuntu.com/security/notices/USN-5976-1
- https://ubuntu.com/security/notices/USN-5977-1
- https://ubuntu.com/security/notices/USN-5978-1
- https://ubuntu.com/security/notices/USN-5979-1
- https://ubuntu.com/security/notices/USN-5980-1
- https://ubuntu.com/security/notices/USN-5982-1
- https://ubuntu.com/security/notices/USN-5985-1
- https://ubuntu.com/security/notices/USN-5987-1
- https://ubuntu.com/security/notices/USN-6004-1
- https://ubuntu.com/security/notices/USN-6020-1
- https://ubuntu.com/security/notices/USN-6151-1
- https://www.cve.org/CVERecord?id=CVE-2022-2196