CVE-2018-19364

MEDIUM

QEMU < 3.0.0 - Use-After-Free in 9pfs fid Path Handling

Title source: llm
STIX 2.1

Description

hw/9pfs/cofile.c and hw/9pfs/9p.c in QEMU can modify an fid path while it is being accessed by a second thread, leading to (for example) a use-after-free outcome.

References (9)

Core 9
Core References
Mailing List, Third Party Advisory mailing-list x_refsource_mlist
https://lists.debian.org/debian-lts-announce/2019/01/msg00023.html
Mailing List, Patch, Vendor Advisory mailing-list x_refsource_mlist
https://lists.gnu.org/archive/html/qemu-devel/2018-11/msg01139.html
Third Party Advisory vendor-advisory x_refsource_ubuntu
https://usn.ubuntu.com/3826-1/
Mailing List, Patch, Third Party Advisory mailing-list x_refsource_mlist
http://www.openwall.com/lists/oss-security/2018/11/20/1
Mailing List, Patch, Vendor Advisory mailing-list x_refsource_mlist
https://lists.gnu.org/archive/html/qemu-devel/2018-11/msg02795.html
Mailing List, Third Party Advisory vendor-advisory x_refsource_suse
http://lists.opensuse.org/opensuse-security-announce/2019-03/msg00042.html
Third Party Advisory vendor-advisory x_refsource_debian
https://www.debian.org/security/2019/dsa-4454
Mailing List, Third Party Advisory mailing-list x_refsource_bugtraq
https://seclists.org/bugtraq/2019/May/76

Scores

CVSS v3 5.5
EPSS 0.0008
EPSS Percentile 22.5%
Attack Vector LOCAL
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Details

CWE
CWE-416
Status published
Products (10)
canonical/ubuntu_linux 14.04
canonical/ubuntu_linux 16.04
canonical/ubuntu_linux 18.04
canonical/ubuntu_linux 18.10
debian/debian_linux 8.0
debian/debian_linux 9.0
fedoraproject/fedora 29
opensuse/leap 42.3
qemu/qemu 3.1.0 rc0 (2 CPE variants)
qemu/qemu < 3.0.0
Published Dec 13, 2018
Tracked Since Feb 18, 2026