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debiancveDebian Security Bug TrackerDEBIANCVE:CVE-2023-1838
HistoryApr 05, 2023 - 7:15 p.m.

CVE-2023-1838

2023-04-0519:15:07
Debian Security Bug Tracker
security-tracker.debian.org
15
vhost_net_set_backend
drivers/vhost/net.c
kernel information leak
double fget
local attacker
system crash
virtio network

7.1 High

CVSS3

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

0.0004 Low

EPSS

Percentile

5.1%

A use-after-free flaw was found in vhost_net_set_backend in drivers/vhost/net.c in virtio network subcomponent in the Linux kernel due to a double fget. This flaw could allow a local attacker to crash the system, and could even lead to a kernel information leak problem.

7.1 High

CVSS3

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

0.0004 Low

EPSS

Percentile

5.1%