What is CVE-2023-28577?

CVE-2023-28577 is a medium-severity vulnerability in Qualcomm Fastconnect 6800, classified under Use After Free. CVSS score: 6.7/10. Published 2023-08-08.

How severe is CVE-2023-28577?

Medium severity. CVSS v3 base score is 6.7 out of 10.

Use After Free in Qualcomm Fastconnect 6800

CVE-2023-28577

In the function call related to CAM_REQ_MGR_RELEASE_BUF there is no check if the buffer is being used. So when a function called cam_mem_get_cpu_buf to get the kernel va to use, another thread can call CAM_REQ_MGR_RELEASE_BUF to unmap the kernel va which cause UAF of the kernel address.

Vulnerability class: Use-After-Free

EPSS: 0.001 (2.3th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.7 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H.

Affected products

Qualcomm Fastconnect_6800
Qualcomm Fastconnect_6800_firmware
Qualcomm Fastconnect_6900
Qualcomm Fastconnect_6900_firmware
Qualcomm Fastconnect_7800
Qualcomm Fastconnect_7800_firmware
Qualcomm Qca6391
Qualcomm Qca6391_firmware
Qualcomm Qca6426
Qualcomm Qca6426_firmware

Weakness classification (CWE)

CWE-416 — Use After Free

References

product-security@qualcomm.com (Patch, Vendor Advisory)

Frequently asked questions

What is CVE-2023-28577?: CVE-2023-28577 is a medium-severity vulnerability in Qualcomm Fastconnect 6800, classified under Use After Free. CVSS score: 6.7/10. Published 2023-08-08.
How severe is CVE-2023-28577?: Medium severity. CVSS v3 base score is 6.7 out of 10.