CVE-2023-0458 Spectre V1 Gadget in do_prlimit in the Linux Kernel

2023-04-2618:03:11

CWE-476

Google

www.cve.org

cve-2023-0458

spectre v1

linux kernel

do_prlimit

pointer dereference

resource control

pointer arithmetic

version 6.1.8

5.3 Medium

CVSS3

Attack Vector

NETWORK

Attack Complexity

HIGH

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

NONE

Availability Impact

NONE

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

6.5 Medium

AI Score

Confidence

High

0.0004 Low

EPSS

Percentile

14.1%

JSON

A speculative pointer dereference problem exists in the Linux Kernel on the do_prlimit() function. The resource argument value is controlled and is used in pointer arithmetic for the ‘rlim’ variable and can be used to leak the contents. We recommend upgrading past version 6.1.8 or commit 739790605705ddcf18f21782b9c99ad7d53a8c11

CNA Affected

[
  {
    "defaultStatus": "unaffected",
    "packageName": "kernel",
    "product": "Linux Kernel",
    "repo": "https://git.kernel.org",
    "vendor": "Linux",
    "versions": [
      {
        "lessThanOrEqual": "6.1.8",
        "status": "affected",
        "version": "0",
        "versionType": "custom"
      }
    ]
  }
]