CVE-2024-6563
Buffer Copy without Checking Size of Input ('Classic Buffer Overflow') vulnerability in Renesas arm-trusted-firmware allows Local Execution of Code.
Does this matter?
Lower severity and a low EPSS score (0.21%). Track it; it rarely justifies an emergency change on its own.
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.
- CVSS 3.1
- 6.7 MEDIUMCVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 0.21% probability · 11th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-120, CWE-123
- Affected
- renesas/arm-trusted-firmware
- Source
- cve@asrg.io
References
- https://asrg.io/security-advisories/cve-2024-6563/Third Party Advisory
- https://github.com/renesas-rcar/arm-trusted-firmware/commit/235f85b654a031f7647e81b86fc8e4ffeb430164Patch
- https://asrg.io/security-advisories/cve-2024-6563/Third Party Advisory
- https://github.com/renesas-rcar/arm-trusted-firmware/commit/235f85b654a031f7647e81b86fc8e4ffeb430164Patch
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.