PT-2019-19020 · Linux Foundation+1 · Linux+1

Published 2019-02-17 · Updated 2022-09-22 · CVE-2019-8413

Positive Technologies (AI Summary)

CVSS v3.1

5.5

Medium

Base vector

AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Name of the Vulnerable Software and Affected Versions Xiaomi MIX 2 devices with kernel version 4.4.78

Description A NULL pointer dereference issue exists in the ioctl interface of the device files /dev/elliptic1 or /dev/elliptic0, which can cause a system crash when IOCTL 0x4008c575 (decimal 1074316661) is used.

Recommendations For Xiaomi MIX 2 devices with kernel version 4.4.78, as a temporary workaround, consider restricting access to the /dev/elliptic1 and /dev/elliptic0 device files to minimize the risk of exploitation. Avoid using IOCTL 0x4008c575 in the affected ioctl interface until the issue is resolved. At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

NULL Pointer Dereference

Weakness Enumeration

CWE-476

Related Identifiers

CVE-2019-8413

Affected Products

Linux

Xiaomi Mix 2

References · 3

• 🔥 https://github.com/datadancer/HIAFuzz/blob/master/MIX2_elliptic.md · Exploit
• https://osv.dev/vulnerability/CVE-2019-8413 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2019-8413 · Security Note