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ubuntuUbuntuUSN-6249-1
HistoryJul 25, 2023 - 12:00 a.m.

Linux kernel (OEM) vulnerabilities

2023-07-2500:00:00
ubuntu.com
44
ubuntu
vulnerabilities
memory management
io_uring
local attacker
denial of service
system crash
arbitrary code
cve-2023-3269
cve-2023-3389
oem systems

7.8 High

CVSS3

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

7.9 High

AI Score

Confidence

High

0.001 Low

EPSS

Percentile

25.8%

Releases

  • Ubuntu 22.04 LTS

Packages

  • linux-oem-6.1 - Linux kernel for OEM systems

Details

Ruihan Li discovered that the memory management subsystem in the Linux
kernel contained a race condition when accessing VMAs in certain
conditions, leading to a use-after-free vulnerability. A local attacker
could possibly use this to cause a denial of service (system crash) or
execute arbitrary code. (CVE-2023-3269)

Querijn Voet discovered that a race condition existed in the io_uring
subsystem in the Linux kernel, leading to a use-after-free vulnerability. A
local attacker could use this to cause a denial of service (system crash)
or possibly execute arbitrary code. (CVE-2023-3389)

7.8 High

CVSS3

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

7.9 High

AI Score

Confidence

High

0.001 Low

EPSS

Percentile

25.8%