#VU23024 Memory leak in Linux kernel - CVE-2019-19058
Published: November 27, 2019 / Updated: December 5, 2019
Vulnerability identifier: #VU23024
Vulnerability risk: Medium
CVSSv4.0: CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2019-19058
CWE-ID: CWE-401
Exploitation vector: Adjecent network
Exploit availability:
No public exploit available
Vulnerable software:
Linux kernel
Linux kernel
Software vendor:
Linux Foundation
Linux Foundation
Description
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to memory leak within the "alloc_sgtable()" function in "drivers/net/wireless/intel/iwlwifi/fw/dbg.c" file. A remote attacker on the local network can cause a denial of service (memory consumption) by triggering "alloc_page()" failures.
Remediation
Install update from vendor's website.
External links
- https://github.com/torvalds/linux/commit/b4b814fec1a5a849383f7b3886b654a13abbda7d
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/O3PSDE6PTOTVBK2YTKB2TFQP2SUBVSNF/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/PY7LJMSPAGRIKABJPDKQDTXYW3L5RX2T/