Attacker Value
Unknown
(0 users assessed)
Exploitability
Unknown
(0 users assessed)
User Interaction
None
Privileges Required
High
Attack Vector
Local
0

CVE-2024-6563

Disclosure Date: July 08, 2024
Add MITRE ATT&CK tactics and techniques that apply to this CVE.

Description

Buffer Copy without Checking Size of Input (‘Classic Buffer Overflow’) vulnerability in Renesas arm-trusted-firmware allows Local Execution of Code. This vulnerability is associated with program files https://github.Com/renesas-rcar/arm-trusted-firmware/blob/rcar_gen3_v2.5/drivers/renesas/common/io/i... https://github.Com/renesas-rcar/arm-trusted-firmware/blob/rcar_gen3_v2.5/drivers/renesas/common/io/io_rcar.C .

In line 313 “addr_loaded_cnt” is checked not to be “CHECK_IMAGE_AREA_CNT” (5) or larger, this check does not halt the function. Immediately after (line 317) there will be an overflow in the buffer and the value of “dst” will be written to the area immediately after the buffer, which is “addr_loaded_cnt”. This will allow an attacker to freely control the value of “addr_loaded_cnt” and thus control the destination of the write immediately after (line 318). The write in line 318 will then be fully controlled by said attacker, with whichever address and whichever value (“len”) they desire.

Add Assessment

No one has assessed this topic. Be the first to add your voice to the community.

CVSS V3 Severity and Metrics
Base Score:
6.7 Medium
Impact Score:
5.9
Exploitability Score:
0.8
Vector:
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
Attack Vector (AV):
Local
Attack Complexity (AC):
Low
Privileges Required (PR):
High
User Interaction (UI):
None
Scope (S):
Unchanged
Confidentiality (C):
High
Integrity (I):
High
Availability (A):
High

General Information

Vendors

  • renesas

Products

  • arm-trusted-firmware -

Additional Info

Technical Analysis