#VU23025 Memory leak in Linux kernel - CVE-2019-19059
Published: November 27, 2019 / Updated: May 21, 2020
Vulnerability identifier: #VU23025
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-2019-19059
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 "iwl_pcie_ctxt_info_gen3_init()" function in "drivers/net/wireless/intel/iwlwifi/pcie/ctxt-info-gen3.c" file. A remote attacker on the local network can cause a denial of service condition (memory consumption) by triggering "iwl_pcie_init_fw_sec() or dma_alloc_coherent()" failures.
Remediation
Install updates from vendor's website.
External links
- https://github.com/torvalds/linux/commit/0f4f199443faca715523b0659aa536251d8b978f
- 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/