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ubuntucveUbuntu.comUB:CVE-2021-27364
HistoryMar 07, 2021 - 12:00 a.m.

CVE-2021-27364

2021-03-0700:00:00
ubuntu.com
ubuntu.com
38

CVSS2

3.6

Attack Vector

LOCAL

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

NONE

Availability Impact

PARTIAL

AV:L/AC:L/Au:N/C:P/I:N/A:P

CVSS3

7.1

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

NONE

Availability Impact

HIGH

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H

EPSS

0.001

Percentile

38.0%

JSON

An issue was discovered in the Linux kernel through 5.11.3.
drivers/scsi/scsi_transport_iscsi.c is adversely affected by the ability of
an unprivileged user to craft Netlink messages.

Bugs

Notes

Author Note
sbeattie Reading the discoverers article, it looks like the CVE was assigned for the out of bounds read vulnerability addressed by f9dbdf97a5bd92b1a49cee3d591b55b11fd7a6d5, not 688e8128b7a92d as described by Marcus in his oss-security posting. However, 688e8128b7a92d commit requiring CAP_SYS_ADMIN for netlink access also mitigates the vulnerability.
OSVersionArchitecturePackageVersionFilename
ubuntu18.04noarchlinux< 4.15.0-139.143UNKNOWN
ubuntu20.04noarchlinux< 5.4.0-70.78UNKNOWN
ubuntu20.10noarchlinux< 5.8.0-48.54UNKNOWN
ubuntu14.04noarchlinux< 3.13.0-185.236UNKNOWN
ubuntu16.04noarchlinux< 4.4.0-206.238UNKNOWN
ubuntu18.04noarchlinux-aws< 4.15.0-1096.103UNKNOWN
ubuntu20.04noarchlinux-aws< 5.4.0-1041.43UNKNOWN
ubuntu20.10noarchlinux-aws< 5.8.0-1027.29UNKNOWN
ubuntu14.04noarchlinux-aws< 4.4.0-1088.92UNKNOWN
ubuntu16.04noarchlinux-aws< 4.4.0-1124.138UNKNOWN
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CVSS2

3.6

Attack Vector

LOCAL

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

NONE

Availability Impact

PARTIAL

AV:L/AC:L/Au:N/C:P/I:N/A:P

CVSS3

7.1

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

NONE

Availability Impact

HIGH

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H

EPSS

0.001

Percentile

38.0%

JSON
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