Debian Security Bug TrackerDEBIANCVE:CVE-2021-33624CVE-2021-33624
4.7 Medium
CVSS3
Attack Vector
LOCAL
Attack Complexity
HIGH
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
NONE
Availability Impact
NONE
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N
4.7 Medium
CVSS2
Access Vector
LOCAL
Access Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
COMPLETE
Integrity Impact
NONE
Availability Impact
NONE
AV:L/AC:M/Au:N/C:C/I:N/A:N
0.001 Low
EPSS
Percentile
22.9%
In kernel/bpf/verifier.c in the Linux kernel before 5.12.13, a branch can be mispredicted (e.g., because of type confusion) and consequently an unprivileged BPF program can read arbitrary memory locations via a side-channel attack, aka CID-9183671af6db.
| OS | Version | Architecture | Package | Version | Filename |
|---|---|---|---|---|---|
| Debian | 12 | all | linux | < 5.10.46-1 | linux_5.10.46-1_all.deb |
| Debian | 11 | all | linux | < 5.10.46-1 | linux_5.10.46-1_all.deb |
| Debian | 10 | all | linux | < 4.19.208-1 | linux_4.19.208-1_all.deb |
| Debian | 999 | all | linux | < 5.10.46-1 | linux_5.10.46-1_all.deb |
| Debian | 13 | all | linux | < 5.10.46-1 | linux_5.10.46-1_all.deb |
Related
4.7 Medium
CVSS3
Attack Vector
LOCAL
Attack Complexity
HIGH
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
NONE
Availability Impact
NONE
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N
4.7 Medium
CVSS2
Access Vector
LOCAL
Access Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
COMPLETE
Integrity Impact
NONE
Availability Impact
NONE
AV:L/AC:M/Au:N/C:C/I:N/A:N
0.001 Low
EPSS
Percentile
22.9%