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ubuntuUbuntuUSN-5799-1
HistoryJan 11, 2023 - 12:00 a.m.

Linux kernel (OEM) vulnerability

2023-01-1100:00:00
ubuntu.com
59
ubuntu 22.04 lts
linux kernel
oem systems
stack-based buffer overflow
denial of service
execute arbitrary code
vulnerability
sysctl implementation

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

8.1 High

AI Score

Confidence

High

0.0004 Low

EPSS

Percentile

5.1%

Releases

  • Ubuntu 22.04 LTS

Packages

  • linux-oem-5.17 - Linux kernel for OEM systems
  • linux-oem-6.0 - Linux kernel for OEM systems

Details

Kyle Zeng discovered that the sysctl implementation in the Linux kernel
contained a stack-based buffer overflow. A local attacker could use this to
cause a denial of service (system crash) or execute arbitrary code.

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

8.1 High

AI Score

Confidence

High

0.0004 Low

EPSS

Percentile

5.1%