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MediaTekCVE-2023-20821

HistorySep 04, 2023 - 3:15 a.m.

CVE-2023-20821

2023-09-0403:15:08

CWE-787

MediaTek

web.nvd.nist.gov

cve-2023-20821

nvram

out of bounds write

local privilege escalation

security patch

alps07937113

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

EPSS

Percentile

5.1%

JSON

In nvram, there is a possible out of bounds write due to a missing bounds check. This could lead to local escalation of privilege with System execution privileges needed. User interaction is not needed for exploitation. Patch ID: ALPS07937113; Issue ID: ALPS07937113.

Affected configurations

Nvd

Vulners

Node

linuxfoundationyoctoMatch2.6

rdkcentralrdk-bMatch2022q3

googleandroidMatch11.0

googleandroidMatch12.0

googleandroidMatch13.0

openwrtopenwrtMatch19.07.0-

openwrtopenwrtMatch21.02.0-

AND

mediatekmt2713Match-

mediatekmt2735Match-

mediatekmt6833Match-

mediatekmt6835Match-

mediatekmt6853Match-

mediatekmt6855Match-

mediatekmt6873Match-

mediatekmt6875Match-

mediatekmt6877Match-

mediatekmt6879Match-

mediatekmt6880Match-

mediatekmt6883Match-

mediatekmt6885Match-

mediatekmt6886Match-

mediatekmt6889Match-

mediatekmt6890Match-

mediatekmt6891Match-

mediatekmt6893Match-

mediatekmt6895Match-

mediatekmt6980Match-

mediatekmt6983Match-

mediatekmt6985Match-

mediatekmt6990Match-

mediatekmt8167Match-

mediatekmt8167sMatch-

mediatekmt8168Match-

mediatekmt8173Match-

mediatekmt8175Match-

mediatekmt8185Match-

mediatekmt8188Match-

mediatekmt8195Match-

mediatekmt8321Match-

mediatekmt8362aMatch-

mediatekmt8365Match-

mediatekmt8385Match-

mediatekmt8395Match-

mediatekmt8666Match-

mediatekmt8673Match-

mediatekmt8675Match-

mediatekmt8765Match-

mediatekmt8766Match-

mediatekmt8768Match-

mediatekmt8781Match-

mediatekmt8786Match-

mediatekmt8788Match-

mediatekmt8789Match-

mediatekmt8791Match-

mediatekmt8791tMatch-

mediatekmt8797Match-

VendorProductVersionCPE
linuxfoundationyocto2.6cpe:2.3:a:linuxfoundation:yocto:2.6:*:*:*:*:*:*:*
rdkcentralrdk-b2022q3cpe:2.3:a:rdkcentral:rdk-b:2022q3:*:*:*:*:*:*:*
googleandroid11.0cpe:2.3:o:google:android:11.0:*:*:*:*:*:*:*
googleandroid12.0cpe:2.3:o:google:android:12.0:*:*:*:*:*:*:*
googleandroid13.0cpe:2.3:o:google:android:13.0:*:*:*:*:*:*:*
openwrtopenwrt19.07.0cpe:2.3:o:openwrt:openwrt:19.07.0:-:*:*:*:*:*:*
openwrtopenwrt21.02.0cpe:2.3:o:openwrt:openwrt:21.02.0:-:*:*:*:*:*:*
mediatekmt2713-cpe:2.3:h:mediatek:mt2713:-:*:*:*:*:*:*:*
mediatekmt2735-cpe:2.3:h:mediatek:mt2735:-:*:*:*:*:*:*:*
mediatekmt6833-cpe:2.3:h:mediatek:mt6833:-:*:*:*:*:*:*:*

Vendor	Product	Version	CPE
linuxfoundation	yocto	2.6	cpe:2.3:a:linuxfoundation:yocto:2.6:::::::*
rdkcentral	rdk-b	2022q3	cpe:2.3:a:rdkcentral:rdk-b:2022q3:::::::*
google	android	11.0	cpe:2.3:o:google:android:11.0:::::::*
google	android	12.0	cpe:2.3:o:google:android:12.0:::::::*
google	android	13.0	cpe:2.3:o:google:android:13.0:::::::*
openwrt	openwrt	19.07.0	cpe:2.3:o:openwrt:openwrt:19.07.0:-::::::
openwrt	openwrt	21.02.0	cpe:2.3:o:openwrt:openwrt:21.02.0:-::::::
mediatek	mt2713	-	cpe:2.3:h:mediatek:mt2713:-:::::::*
mediatek	mt2735	-	cpe:2.3:h:mediatek:mt2735:-:::::::*
mediatek	mt6833	-	cpe:2.3:h:mediatek:mt6833:-:::::::*

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1-10 of 561

CNA Affected

[
  {
    "vendor": "MediaTek, Inc.",
    "product": "MT2713, MT2735, MT6833, MT6835, MT6853, MT6855, MT6873, MT6875, MT6877, MT6879, MT6880, MT6883, MT6885, MT6886, MT6889, MT6890, MT6891, MT6893, MT6895, MT6980, MT6983, MT6985, MT6990, MT8167, MT8167S, MT8168, MT8173, MT8175, MT8185, MT8188, MT8195, MT8321, MT8362A, MT8365, MT8385, MT8395, MT8666, MT8673, MT8675, MT8765, MT8766, MT8768, MT8781, MT8786, MT8788, MT8789, MT8791, MT8791T, MT8797",
    "versions": [
      {
        "version": "Android 11.0, 12.0, 13.0 / OpenWrt 1907, 2102 / Yocto 2.6 / RDK-B 22Q3",
        "status": "affected"
      }
    ]
  }
]

References

corp.mediatek.com/product-security-bulletin/September-2023

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

EPSS

Percentile

5.1%

JSON

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