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Vulnerability Details : CVE-2018-19364

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.
Publish Date : 2018-12-13 Last Update Date : 2020-05-12
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- CVSS Scores & Vulnerability Types

CVSS Score
Confidentiality Impact None (There is no impact to the confidentiality of the system.)
Integrity Impact None (There is no impact to the integrity of the system)
Availability Impact Partial (There is reduced performance or interruptions in resource availability.)
Access Complexity Low (Specialized access conditions or extenuating circumstances do not exist. Very little knowledge or skill is required to exploit. )
Authentication Not required (Authentication is not required to exploit the vulnerability.)
Gained Access None
Vulnerability Type(s)
CWE ID 416

- Products Affected By CVE-2018-19364

# Product Type Vendor Product Version Update Edition Language
1 OS Canonical Ubuntu Linux 14.04 * * * Version Details Vulnerabilities
2 OS Canonical Ubuntu Linux 16.04 * * * Version Details Vulnerabilities
3 OS Canonical Ubuntu Linux 18.04 * * * Version Details Vulnerabilities
4 OS Canonical Ubuntu Linux 18.10 * * * Version Details Vulnerabilities
5 OS Debian Debian Linux 8.0 * * * Version Details Vulnerabilities
6 OS Debian Debian Linux 9.0 * * * Version Details Vulnerabilities
7 OS Fedoraproject Fedora 29 * * * Version Details Vulnerabilities
8 OS Opensuse Leap 42.3 * * * Version Details Vulnerabilities
9 Application Qemu Qemu * * * * Version Details Vulnerabilities
10 Application Qemu Qemu 3.1.0 RC0 * * Version Details Vulnerabilities
11 Application Qemu Qemu 3.1.0 RC1 * * Version Details Vulnerabilities

- Number Of Affected Versions By Product

Vendor Product Vulnerable Versions
Canonical Ubuntu Linux 4
Debian Debian Linux 2
Fedoraproject Fedora 1
Opensuse Leap 1
Qemu Qemu 3

- References For CVE-2018-19364
MLIST [qemu-devel] 20181115 [PATCH] 9p: take write lock on fid path updates
BUGTRAQ 20190531 [SECURITY] [DSA 4454-1] qemu security update
SUSE openSUSE-SU-2019:1074
MLIST [debian-lts-announce] 20190129 [SECURITY] [DLA 1646-1] qemu security update
MLIST [qemu-devel] 20181107 [PATCH] 9p: write lock path in v9fs_co_open2()
MLIST [oss-security] 20181120 CVE-2018-19364 Qemu: 9pfs: Use-after-free due to race condition while updating fid path
FEDORA FEDORA-2019-88a98ce795

- Metasploit Modules Related To CVE-2018-19364

There are not any metasploit modules related to this CVE entry (Please visit for more information)

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