CVE-2018-19489
published 2018-12-13CVE-2018-19489: v9fs_wstat in hw/9pfs/9p.c in QEMU allows guest OS users to cause a denial of service (crash) because of a race condition during file renaming.
PriorityP415medium4.7CVSS 3.1
AVLACHPRLUINSUCNINAH
EPSS
0.40%
32.6th percentile
v9fs_wstat in hw/9pfs/9p.c in QEMU allows guest OS users to cause a denial of service (crash) because of a race condition during file renaming.
Affected
18 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| canonical | ubuntu_linux | — | — |
| canonical | ubuntu_linux | — | — |
| canonical | ubuntu_linux | — | — |
| canonical | ubuntu_linux | — | — |
| debian | debian_linux | — | — |
| debian | debian_linux | — | — |
| debian | qemu | < qemu 1:3.1+dfsg-1 (bookworm) | qemu 1:3.1+dfsg-1 (bookworm) |
| fedoraproject | fedora | — | — |
| opensuse | leap | — | — |
| qemu | qemu | <= 3.0.0 | — |
| qemu | qemu | — | — |
| qemu | qemu | >= 0 < 1:3.1+dfsg-1 | 1:3.1+dfsg-1 |
| qemu | qemu | >= 0 < 1:3.1+dfsg-1 | 1:3.1+dfsg-1 |
| qemu | qemu | >= 0 < 1:3.1+dfsg-1 | 1:3.1+dfsg-1 |
| qemu | qemu | >= 0 < 1:3.1+dfsg-1 | 1:3.1+dfsg-1 |
| qemu | qemu | >= 0 < 2.0.0+dfsg-2ubuntu1.45 | 2.0.0+dfsg-2ubuntu1.45 |
| qemu | qemu | >= 0 < 1:2.5+dfsg-5ubuntu10.36 | 1:2.5+dfsg-5ubuntu10.36 |
| qemu | qemu | >= 0 < 1:2.11+dfsg-1ubuntu7.12 | 1:2.11+dfsg-1ubuntu7.12 |
CVSS provenance
nvdv3.14.7MEDIUMCVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H
nvdv2.01.9LOWAV:L/AC:M/Au:N/C:N/I:N/A:P
osv7.8HIGH
vendor_ubuntu7.8HIGH
vendor_debian4.7MEDIUM
vendor_redhat4.7MEDIUM
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GHSA
GHSA-fh27-82wq-79r2: v9fs_wstat in hw/9pfs/9p
ghsa_unreviewed·2022-05-13
CVE-2018-19489 [MEDIUM] CWE-362 GHSA-fh27-82wq-79r2: v9fs_wstat in hw/9pfs/9p
v9fs_wstat in hw/9pfs/9p.c in QEMU allows guest OS users to cause a denial of service (crash) because of a race condition during file renaming.
OSV
qemu vulnerabilities
osv·2019-03-27·CVSS 7.8
CVE-2018-16867 [HIGH] qemu vulnerabilities
qemu vulnerabilities
Michael Hanselmann discovered that QEMU incorrectly handled the Media
Transfer Protocol (MTP). An attacker inside the guest could use this issue
to read or write arbitrary files and cause a denial of service, or possibly
execute arbitrary code. This issue only affected Ubuntu 18.10.
(CVE-2018-16867)
Michael Hanselmann discovered that QEMU incorrectly handled the Media
Transfer Protocol (MTP). An attacker inside the guest could use this issue
to read arbitrary files, contrary to expectations. This issue only affected
Ubuntu 18.04 LTS and Ubuntu 18.10. (CVE-2018-16872)
Zhibin Hu discovered that QEMU incorrectly handled the Plan 9 File System
support. An attacker inside the guest could use this issue to cause QEMU to
crash, resulting in a denial of service. (CVE-2018-1
OSV
CVE-2018-19489: v9fs_wstat in hw/9pfs/9p
osv·2018-12-13·CVSS 4.7
CVE-2018-19489 [MEDIUM] CVE-2018-19489: v9fs_wstat in hw/9pfs/9p
v9fs_wstat in hw/9pfs/9p.c in QEMU allows guest OS users to cause a denial of service (crash) because of a race condition during file renaming.
Ubuntu
QEMU vulnerabilities
vendor_ubuntu·2019-03-27·CVSS 7.8
CVE-2018-16867 [HIGH] QEMU vulnerabilities
Title: QEMU vulnerabilities
Summary: Several security issues were fixed in QEMU.
Michael Hanselmann discovered that QEMU incorrectly handled the Media
Transfer Protocol (MTP). An attacker inside the guest could use this issue
to read or write arbitrary files and cause a denial of service, or possibly
execute arbitrary code. This issue only affected Ubuntu 18.10.
(CVE-2018-16867)
Michael Hanselmann discovered that QEMU incorrectly handled the Media
Transfer Protocol (MTP). An attacker inside the guest could use this issue
to read arbitrary files, contrary to expectations. This issue only affected
Ubuntu 18.04 LTS and Ubuntu 18.10. (CVE-2018-16872)
Zhibin Hu discovered that QEMU incorrectly handled the Plan 9 File System
support. An attacker inside the guest could use this issue to cause
Red Hat
QEMU: 9pfs: crash due to race condition in renaming files
vendor_redhat·2018-11-22·CVSS 4.7
CVE-2018-19489 [MEDIUM] CWE-362 QEMU: 9pfs: crash due to race condition in renaming files
QEMU: 9pfs: crash due to race condition in renaming files
v9fs_wstat in hw/9pfs/9p.c in QEMU allows guest OS users to cause a denial of service (crash) because of a race condition during file renaming.
Package: kvm (Red Hat Enterprise Linux 5) - Not affected
Package: xen (Red Hat Enterprise Linux 5) - Not affected
Package: qemu-kvm (Red Hat Enterprise Linux 6) - Not affected
Package: qemu-kvm (Red Hat Enterprise Linux 7) - Not affected
Package: qemu-kvm-ma (Red Hat Enterprise Linux 7) - Not affected
Package: qemu-kvm-rhev (Red Hat Enterprise Linux 7) - Not affected
Package: qemu-kvm (Red Hat Enterprise Linux 8) - Not affected
Package: qemu-kvm-rhev (Red Hat OpenStack Platform 10 (Newton)) - Not affected
Package: qemu-kvm-rhev (Red Hat OpenStack Platform 12 (Pike)) - Not affected
Debian
CVE-2018-19489: qemu - v9fs_wstat in hw/9pfs/9p.c in QEMU allows guest OS users to cause a denial of se...
vendor_debian·2018·CVSS 4.7
CVE-2018-19489 [MEDIUM] CVE-2018-19489: qemu - v9fs_wstat in hw/9pfs/9p.c in QEMU allows guest OS users to cause a denial of se...
v9fs_wstat in hw/9pfs/9p.c in QEMU allows guest OS users to cause a denial of service (crash) because of a race condition during file renaming.
Scope: local
bookworm: resolved (fixed in 1:3.1+dfsg-1)
bullseye: resolved (fixed in 1:3.1+dfsg-1)
forky: resolved (fixed in 1:3.1+dfsg-1)
sid: resolved (fixed in 1:3.1+dfsg-1)
trixie: resolved (fixed in 1:3.1+dfsg-1)
No detection rules found.
No public exploits indexed.
Bugzilla
CVE-2018-19489 qemu: 9pfs: use-after-free due to race condition in renaming files [fedora-all]
bugzilla·2018-11-26·CVSS 4.7
CVE-2018-19489 [MEDIUM] CVE-2018-19489 qemu: 9pfs: use-after-free due to race condition in renaming files [fedora-all]
CVE-2018-19489 qemu: 9pfs: use-after-free due to race condition in renaming files [fedora-all]
This is an automatically created tracking bug! It was created to ensure
that one or more security vulnerabilities are fixed in affected versions
of fedora-all.
For comments that are specific to the vulnerability please use bugs filed
against the "Security Response" product referenced in the "Blocks" field.
For more information see:
http://fedoraproject.org/wiki/Security/TrackingBugs
When submitting as an update, use the fedpkg template provided in the next
comment(s). This will include the bug IDs of this tracking bug as well as
the relevant top-level CVE bugs.
Please also mention the CVE IDs being fixed in the RPM changelog and the
fedpkg commit message.
NOTE: this issue affects multiple s
Bugzilla
CVE-2018-19489 QEMU: 9pfs: crash due to race condition in renaming files
bugzilla·2018-11-26·CVSS 4.7
CVE-2018-19489 [MEDIUM] CVE-2018-19489 QEMU: 9pfs: crash due to race condition in renaming files
CVE-2018-19489 QEMU: 9pfs: crash due to race condition in renaming files
A use-after-free flaw was found in the VirtFS, host directory sharing via Plan 9
File System(9pfs) support in QEMU. It could occur due to a race condition while renaming
files on a shared host directory.
A user inside guest could use this flaw to crash the QEMU process resulting in DoS issue.
Upstream patch:
-> https://lists.gnu.org/archive/html/qemu-devel/2018-11/msg04489.html
Reference:
-> https://www.openwall.com/lists/oss-security/2018/11/26/1
Discussion:
Acknowledgments:
Name: Zhibin Hu
---
Created qemu tracking bugs for this issue:
Affects: fedora-all [bug 1653157]
http://lists.opensuse.org/opensuse-security-announce/2019-03/msg00042.htmlhttp://www.openwall.com/lists/oss-security/2018/11/26/1http://www.securityfocus.com/bid/106007https://exchange.xforce.ibmcloud.com/vulnerabilities/153326https://git.qemu.org/?p=qemu.git%3Ba=commit%3Bh=1d20398694a3b67a388d955b7a945ba4aa90a8a8https://lists.debian.org/debian-lts-announce/2019/01/msg00023.htmlhttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/CGCFIFSIWUREEQQOZDZFBYKWZHXCWBZN/https://lists.gnu.org/archive/html/qemu-devel/2018-11/msg04489.htmlhttps://seclists.org/bugtraq/2019/May/76https://security-tracker.debian.org/tracker/CVE-2018-19489https://usn.ubuntu.com/3923-1/https://www.debian.org/security/2019/dsa-4454http://lists.opensuse.org/opensuse-security-announce/2019-03/msg00042.htmlhttp://www.openwall.com/lists/oss-security/2018/11/26/1http://www.securityfocus.com/bid/106007https://exchange.xforce.ibmcloud.com/vulnerabilities/153326https://git.qemu.org/?p=qemu.git%3Ba=commit%3Bh=1d20398694a3b67a388d955b7a945ba4aa90a8a8https://lists.debian.org/debian-lts-announce/2019/01/msg00023.htmlhttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/CGCFIFSIWUREEQQOZDZFBYKWZHXCWBZN/https://lists.gnu.org/archive/html/qemu-devel/2018-11/msg04489.htmlhttps://seclists.org/bugtraq/2019/May/76https://security-tracker.debian.org/tracker/CVE-2018-19489https://usn.ubuntu.com/3923-1/https://www.debian.org/security/2019/dsa-4454
2018-12-13
Published