Debian Security Bug TrackerDEBIANCVE:CVE-2021-4157CVE-2021-4157
8 High
CVSS3
Attack Vector
ADJACENT_NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
7.4 High
CVSS2
Access Vector
ADJACENT_NETWORK
Access Complexity
MEDIUM
Authentication
SINGLE
Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
AV:A/AC:M/Au:S/C:C/I:C/A:C
0.001 Low
EPSS
Percentile
43.1%
An out of memory bounds write flaw (1 or 2 bytes of memory) in the Linux kernel NFS subsystem was found in the way users use mirroring (replication of files with NFS). A user, having access to the NFS mount, could potentially use this flaw to crash the system or escalate privileges on the system.
| OS | Version | Architecture | Package | Version | Filename |
|---|---|---|---|---|---|
| Debian | 12 | all | linux | < 5.10.38-1 | linux_5.10.38-1_all.deb |
| Debian | 11 | all | linux | < 5.10.38-1 | linux_5.10.38-1_all.deb |
| Debian | 10 | all | linux | < 4.19.194-1 | linux_4.19.194-1_all.deb |
| Debian | 999 | all | linux | < 5.10.38-1 | linux_5.10.38-1_all.deb |
| Debian | 13 | all | linux | < 5.10.38-1 | linux_5.10.38-1_all.deb |
Related
8 High
CVSS3
Attack Vector
ADJACENT_NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
7.4 High
CVSS2
Access Vector
ADJACENT_NETWORK
Access Complexity
MEDIUM
Authentication
SINGLE
Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
AV:A/AC:M/Au:S/C:C/I:C/A:C
0.001 Low
EPSS
Percentile
43.1%