PT-2019-19365 · Linux Foundation+2 · Linux+2

Leoaccount · Published 2019-02-25 · Updated 2019-02-26 · CVE-2019-9111

Positive Technologies (AI Summary)

CVSS v2.0

7.1

High

Base vector

AV:N/AC:M/Au:N/C:N/I:N/A:C

Name of the Vulnerable Software and Affected Versions msm gpu driver for custom Linux kernels on the Xiaomi perseus-p-oss MIX 3 device through 2018-11-26

Description The issue is caused by an integer overflow due to missing checks of the count argument in the sde evtlog filter write function in drivers/gpu/drm/msm/sde dbg.c. This can be exploited to cause a device crash via a syscall by a crafted application on a rooted device.

Recommendations For the msm gpu driver for custom Linux kernels on the Xiaomi perseus-p-oss MIX 3 device through 2018-11-26, consider disabling the sde evtlog filter write function as a temporary workaround until a patch is available. Restrict access to the drivers/gpu/drm/msm/sde dbg.c module to minimize the risk of exploitation. Avoid using the count argument in the affected syscall until the issue is resolved.

Fix

Integer Overflow

Weakness Enumeration

CWE-190

Related Identifiers

CVE-2019-9111

Affected Products

Linux

Xiaomi Perseus-P-Oss Mix 3

Msm Gpu Driver

References · 3

• https://osv.dev/vulnerability/CVE-2019-9111 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2019-9111 · Security Note
• https://github.com/MiCode/Xiaomi_Kernel_OpenSource/issues/1001 · Note