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Samsung MobileCVE-2021-25467

HistoryOct 06, 2021 - 6:15 p.m.

CVE-2021-25467

2021-10-0618:15:08

CWE-120

Samsung Mobile

web.nvd.nist.gov

cve-2021-25467

buffer overflow

vision dsp

kernel driver

smr oct-2021

privilege escalation

CVSS2

7.2

Attack Vector

LOCAL

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

COMPLETE

Integrity Impact

COMPLETE

Availability Impact

COMPLETE

AV:L/AC:L/Au:N/C:C/I:C/A:C

CVSS3

6.7

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

HIGH

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

AI Score

6.9

Confidence

High

EPSS

Percentile

12.6%

JSON

Assuming system privilege is gained, possible buffer overflow vulnerabilities in the Vision DSP kernel driver prior to SMR Oct-2021 Release 1 allows privilege escalation to Root by hijacking loaded library.

Affected configurations

Nvd

Node

samsungexynos_2100Match-

samsungexynos_980Match-

samsungexynos_9830Match-

AND

googleandroidMatch11.0

VendorProductVersionCPE
samsungexynos_2100-cpe:2.3:h:samsung:exynos_2100:-:*:*:*:*:*:*:*
samsungexynos_980-cpe:2.3:h:samsung:exynos_980:-:*:*:*:*:*:*:*
samsungexynos_9830-cpe:2.3:h:samsung:exynos_9830:-:*:*:*:*:*:*:*
googleandroid11.0cpe:2.3:o:google:android:11.0:*:*:*:*:*:*:*

Vendor	Product	Version	CPE
samsung	exynos_2100	-	cpe:2.3:h:samsung:exynos_2100:-:::::::*
samsung	exynos_980	-	cpe:2.3:h:samsung:exynos_980:-:::::::*
samsung	exynos_9830	-	cpe:2.3:h:samsung:exynos_9830:-:::::::*
google	android	11.0	cpe:2.3:o:google:android:11.0:::::::*

CNA Affected

[
  {
    "product": "Samsung Mobile Devices",
    "vendor": "Samsung Mobile",
    "versions": [
      {
        "lessThan": "SMR Oct-2021 Release 1",
        "status": "affected",
        "version": "R(11.0) devices with Exynos 980, 9830, 2100 chipsets",
        "versionType": "custom"
      }
    ]
  }
]

References

security.samsungmobile.com/securityUpdate.smsb?year=2021&month=10

CVSS2

7.2

Attack Vector

LOCAL

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

COMPLETE

Integrity Impact

COMPLETE

Availability Impact

COMPLETE

AV:L/AC:L/Au:N/C:C/I:C/A:C

CVSS3

6.7

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

HIGH

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

AI Score

6.9

Confidence

High

EPSS

Percentile

12.6%

JSON

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