Memory leak in Linux kernel - CVE-2019-19053
Published: November 27, 2019 / Updated: December 5, 2019
Vulnerability identifier: #VU23026
CSH Severity: Low
CVSS v4: 6.9 [CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2019-19053
CWE-ID: CWE-401
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a local attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to memory leak within the "rpmsg_eptdev_write_iter()" function in "drivers/rpmsg/rpmsg_char.c" file. A local attacker can cause a denial of service condition (memory consumption) by triggering "copy_from_iter_full()" failures.
Affected software
Linux kernel
Fedora
kernel
Fedora
kernel
How to mitigate CVE-2019-19053
Install update from vendor's website.
Linux kernel - update to 5.3.12
kernel - addressed in versions 5.3.12-200.fc30, 5.3.12-300.fc31
kernel - addressed in versions 5.3.12-200.fc30, 5.3.12-300.fc31