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ubuntucveUbuntu.comUB:CVE-2023-6270
HistoryJan 04, 2024 - 12:00 a.m.

CVE-2023-6270

2024-01-0400:00:00
ubuntu.com
ubuntu.com
21
linux kernel
ata over ethernet
denial of service
code execution
bugzilla
use-after-free

7 High

CVSS3

Attack Vector

LOCAL

Attack Complexity

HIGH

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

6.5 Medium

AI Score

Confidence

High

0.0004 Low

EPSS

Percentile

9.9%

A flaw was found in the ATA over Ethernet (AoE) driver in the Linux kernel.
The aoecmd_cfg_pkts() function improperly updates the refcnt on struct net_device, and a use-after-free can be triggered by racing between the
free on the struct and the access through the skbtxq global queue. This
could lead to a denial of service condition or potential code execution.

Bugs

Notes

Author Note
Priority reason: A use-after-free vulnerability accessible from an unprivileged user

References

7 High

CVSS3

Attack Vector

LOCAL

Attack Complexity

HIGH

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

6.5 Medium

AI Score

Confidence

High

0.0004 Low

EPSS

Percentile

9.9%