CVE-2021-44850

  1. OpenCVE
  2. Vulnerabilities (CVE)
  3. CVE-2021-44850
On Xilinx Zynq-7000 SoC devices, physical modification of an SD boot image allows for a buffer overflow attack in the ROM. Because the Zynq-7000's boot image header is unencrypted and unauthenticated before use, an attacker can modify the boot header stored on an SD card so that a secure image appears to be unencrypted, and they will be able to modify the full range of register initialization values. Normally, these registers will be restricted when booting securely. Of importance to this attack are two registers that control the SD card's transfer type and transfer size. These registers could be modified a way that causes a buffer overflow in the ROM.

6.8 /10

CVSS v3 : MEDIUM

V3 Legend

Vector :

Exploitability : 0.9 / Impact : 5.9

Attack Vector PHYSICAL

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

4.6 /10

CVSS v2.0 : MEDIUM

V2 Legend

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

Exploitability : 3.9 / Impact : 6.4

Access Vector LOCAL

Access Complexity LOW

Authentication NONE

Confidentiality Impact PARTIAL

Integrity Impact PARTIAL

Availability Impact PARTIAL

References
Link Resource
https://support.xilinx.com/s/article/47915 Vendor Advisory
https://support.xilinx.com/s/article/76964 Vendor Advisory
https://support.xilinx.com/s/article/47915 Vendor Advisory
https://support.xilinx.com/s/article/76964 Vendor Advisory
Configurations

Configuration 1 (hide)

AND
cpe:2.3:o:amd:xilinx_z-7012s_firmware:-:*:*:*:*:*:*:*
cpe:2.3:h:amd:xilinx_z-7012s:-:*:*:*:*:*:*:*

Configuration 2 (hide)

AND
cpe:2.3:o:amd:xilinx_z-7014s_firmware:-:*:*:*:*:*:*:*
cpe:2.3:h:amd:xilinx_z-7014s:-:*:*:*:*:*:*:*

Configuration 3 (hide)

AND
cpe:2.3:o:amd:xilinx_z-7010_firmware:-:*:*:*:*:*:*:*
cpe:2.3:h:amd:xilinx_z-7010:-:*:*:*:*:*:*:*

Configuration 4 (hide)

AND
cpe:2.3:o:amd:xilinx_z-7015_firmware:-:*:*:*:*:*:*:*
cpe:2.3:h:amd:xilinx_z-7015:-:*:*:*:*:*:*:*

Configuration 5 (hide)

AND
cpe:2.3:o:amd:xilinx_z-7020_firmware:-:*:*:*:*:*:*:*
cpe:2.3:h:amd:xilinx_z-7020:-:*:*:*:*:*:*:*

Configuration 6 (hide)

AND
cpe:2.3:o:amd:xilinx_z-7030_firmware:-:*:*:*:*:*:*:*
cpe:2.3:h:amd:xilinx_z-7030:-:*:*:*:*:*:*:*

Configuration 7 (hide)

AND
cpe:2.3:o:amd:xilinx_z-7035_firmware:-:*:*:*:*:*:*:*
cpe:2.3:h:amd:xilinx_z-7035:-:*:*:*:*:*:*:*

Configuration 8 (hide)

AND
cpe:2.3:o:amd:xilinx_z-7045_firmware:-:*:*:*:*:*:*:*
cpe:2.3:h:amd:xilinx_z-7045:-:*:*:*:*:*:*:*

Configuration 9 (hide)

AND
cpe:2.3:o:amd:xilinx_z-7100_firmware:-:*:*:*:*:*:*:*
cpe:2.3:h:amd:xilinx_z-7100:-:*:*:*:*:*:*:*

Configuration 10 (hide)

AND
cpe:2.3:o:amd:xilinx_z-7007s_firmware:-:*:*:*:*:*:*:*
cpe:2.3:h:amd:xilinx_z-7007s:-:*:*:*:*:*:*:*
History

21 Nov 2024, 06:31

Type Values Removed Values Added
References () https://support.xilinx.com/s/article/47915 - Vendor Advisory () https://support.xilinx.com/s/article/47915 - Vendor Advisory
References () https://support.xilinx.com/s/article/76964 - Vendor Advisory () https://support.xilinx.com/s/article/76964 - Vendor Advisory

08 Aug 2023, 14:22

Type Values Removed Values Added
CWE CWE-120 CWE-345

17 Feb 2022, 17:26

Type Values Removed Values Added
References (CONFIRM) https://support.xilinx.com/s/article/76964 - (CONFIRM) https://support.xilinx.com/s/article/76964 - Vendor Advisory
References (CONFIRM) https://support.xilinx.com/s/article/47915 - (CONFIRM) https://support.xilinx.com/s/article/47915 - Vendor Advisory
CWE CWE-120
CVSS v2 : unknown
v3 : unknown 		v2 : 4.6
v3 : 6.8
CPE cpe:2.3:o:amd:xilinx_z-7045_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:amd:xilinx_z-7010_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:amd:xilinx_z-7035_firmware:-:*:*:*:*:*:*:*
cpe:2.3:h:amd:xilinx_z-7045:-:*:*:*:*:*:*:*
cpe:2.3:o:amd:xilinx_z-7007s_firmware:-:*:*:*:*:*:*:*
cpe:2.3:h:amd:xilinx_z-7100:-:*:*:*:*:*:*:*
cpe:2.3:h:amd:xilinx_z-7035:-:*:*:*:*:*:*:*
cpe:2.3:h:amd:xilinx_z-7007s:-:*:*:*:*:*:*:*
cpe:2.3:h:amd:xilinx_z-7020:-:*:*:*:*:*:*:*
cpe:2.3:o:amd:xilinx_z-7015_firmware:-:*:*:*:*:*:*:*
cpe:2.3:h:amd:xilinx_z-7014s:-:*:*:*:*:*:*:*
cpe:2.3:h:amd:xilinx_z-7015:-:*:*:*:*:*:*:*
cpe:2.3:o:amd:xilinx_z-7030_firmware:-:*:*:*:*:*:*:*
cpe:2.3:h:amd:xilinx_z-7012s:-:*:*:*:*:*:*:*
cpe:2.3:h:amd:xilinx_z-7030:-:*:*:*:*:*:*:*
cpe:2.3:o:amd:xilinx_z-7012s_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:amd:xilinx_z-7014s_firmware:-:*:*:*:*:*:*:*
cpe:2.3:h:amd:xilinx_z-7010:-:*:*:*:*:*:*:*
cpe:2.3:o:amd:xilinx_z-7020_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:amd:xilinx_z-7100_firmware:-:*:*:*:*:*:*:*

10 Feb 2022, 19:41

Type Values Removed Values Added
New CVE
Information

Published : 2022-02-10 19:15

Updated : 2024-11-21 06:31

NVD link : CVE-2021-44850

Mitre link : CVE-2021-44850

CVE.ORG link : CVE-2021-44850

JSON object : View

Products Affected

amd

  • xilinx_z-7010_firmware
  • xilinx_z-7015_firmware
  • xilinx_z-7045_firmware
  • xilinx_z-7007s
  • xilinx_z-7012s_firmware
  • xilinx_z-7010
  • xilinx_z-7014s_firmware
  • xilinx_z-7020
  • xilinx_z-7012s
  • xilinx_z-7015
  • xilinx_z-7035_firmware
  • xilinx_z-7100_firmware
  • xilinx_z-7030
  • xilinx_z-7045
  • xilinx_z-7007s_firmware
  • xilinx_z-7020_firmware
  • xilinx_z-7030_firmware
  • xilinx_z-7014s
  • xilinx_z-7035
  • xilinx_z-7100
CWE
CWE-345

Insufficient Verification of Data Authenticity