CVE-2018-19364
published 2018-12-13CVE-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…
PriorityP419medium5.5CVSS 3.1
AVLACLPRLUINSUCNINAH
EPSS
0.53%
41.2th percentile
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.
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-2ubuntu1.44 | 2.0.0+dfsg-2ubuntu1.44 |
| qemu | qemu | >= 0 < 1:2.5+dfsg-5ubuntu10.33 | 1:2.5+dfsg-5ubuntu10.33 |
| qemu | qemu | >= 0 < 1:2.11+dfsg-1ubuntu7.8 | 1:2.11+dfsg-1ubuntu7.8 |
CVSS provenance
nvdv3.15.5MEDIUMCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
nvdv2.02.1LOWAV:L/AC:L/Au:N/C:N/I:N/A:P
osv6.5MEDIUM
vendor_ubuntu6.5MEDIUM
vendor_debian5.5MEDIUM
vendor_redhat5.5MEDIUM
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GHSA
GHSA-6p82-v9w6-85gx: hw/9pfs/cofile
ghsa_unreviewed·2022-05-13
CVE-2018-19364 [MEDIUM] CWE-416 GHSA-6p82-v9w6-85gx: hw/9pfs/cofile
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.
OSV
CVE-2018-19364: hw/9pfs/cofile
osv·2018-12-13·CVSS 5.5
CVE-2018-19364 [MEDIUM] CVE-2018-19364: hw/9pfs/cofile
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.
OSV
qemu vulnerabilities
osv·2018-11-26·CVSS 6.5
CVE-2018-10839 [MEDIUM] qemu vulnerabilities
qemu vulnerabilities
Daniel Shapira and Arash Tohidi discovered that QEMU incorrectly handled
NE2000 device emulation. An attacker inside the guest could use this issue
to cause QEMU to crash, resulting in a denial of service. (CVE-2018-10839)
It was discovered that QEMU incorrectly handled the Slirp networking
back-end. A privileged attacker inside the guest could use this issue to
cause QEMU to crash, resulting in a denial of service, or possibly execute
arbitrary code on the host. In the default installation, when QEMU is used
with libvirt, attackers would be isolated by the libvirt AppArmor profile.
This issue only affected Ubuntu 14.04 LTS, Ubuntu 16.04 LTS and Ubuntu
18.04 LTS. (CVE-2018-11806)
Fakhri Zulkifli discovered that the QEMU guest agent incorrectly handled
certain QMP co
Ubuntu
QEMU vulnerabilities
vendor_ubuntu·2018-11-26·CVSS 6.5
CVE-2018-10839 [MEDIUM] QEMU vulnerabilities
Title: QEMU vulnerabilities
Summary: Several security issues were fixed in QEMU.
Daniel Shapira and Arash Tohidi discovered that QEMU incorrectly handled
NE2000 device emulation. An attacker inside the guest could use this issue
to cause QEMU to crash, resulting in a denial of service. (CVE-2018-10839)
It was discovered that QEMU incorrectly handled the Slirp networking
back-end. A privileged attacker inside the guest could use this issue to
cause QEMU to crash, resulting in a denial of service, or possibly execute
arbitrary code on the host. In the default installation, when QEMU is used
with libvirt, attackers would be isolated by the libvirt AppArmor profile.
This issue only affected Ubuntu 14.04 LTS, Ubuntu 16.04 LTS and Ubuntu
18.04 LTS. (CVE-2018-11806)
Fakhri Zulkifli discovered
Red Hat
Qemu: 9pfs: Use-after-free due to race condition while updating fid path
vendor_redhat·2018-11-07·CVSS 5.5
CVE-2018-19364 [MEDIUM] CWE-362 Qemu: 9pfs: Use-after-free due to race condition while updating fid path
Qemu: 9pfs: Use-after-free due to race condition while updating fid path
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.
Package: kvm (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
Package: qemu-kvm-rhev
Debian
CVE-2018-19364: qemu - hw/9pfs/cofile.c and hw/9pfs/9p.c in QEMU can modify an fid path while it is bei...
vendor_debian·2018·CVSS 5.5
CVE-2018-19364 [MEDIUM] CVE-2018-19364: qemu - hw/9pfs/cofile.c and hw/9pfs/9p.c in QEMU can modify an fid path while it is bei...
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.
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-2018-19364 qemu: 9pfs: Use-after-free due to race condition while updating fid path [fedora-all]
bugzilla·2018-11-19·CVSS 5.5
CVE-2018-19364 [MEDIUM] CVE-2018-19364 qemu: 9pfs: Use-after-free due to race condition while updating fid path [fedora-all]
CVE-2018-19364 qemu: 9pfs: Use-after-free due to race condition while updating fid path [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 mult
Bugzilla
CVE-2018-19364 Qemu: 9pfs: Use-after-free due to race condition while updating fid path
bugzilla·2018-10-25·CVSS 5.5
CVE-2018-19364 [MEDIUM] CVE-2018-19364 Qemu: 9pfs: Use-after-free due to race condition while updating fid path
CVE-2018-19364 Qemu: 9pfs: Use-after-free due to race condition while updating fid path
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 accessing 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/msg01139.html
-> https://lists.gnu.org/archive/html/qemu-devel/2018-11/msg02795.html
Reference:
-> https://www.openwall.com/lists/oss-security/2018/11/20/1
Discussion:
Acknowledgments:
Name: Zhibin Hu
---
Created qemu tracking bugs for this issue:
Affects: fedora-all [bug 1651359]
http://lists.opensuse.org/opensuse-security-announce/2019-03/msg00042.htmlhttp://www.openwall.com/lists/oss-security/2018/11/20/1https://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/msg01139.htmlhttps://lists.gnu.org/archive/html/qemu-devel/2018-11/msg02795.htmlhttps://seclists.org/bugtraq/2019/May/76https://usn.ubuntu.com/3826-1/https://www.debian.org/security/2019/dsa-4454http://lists.opensuse.org/opensuse-security-announce/2019-03/msg00042.htmlhttp://www.openwall.com/lists/oss-security/2018/11/20/1https://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/msg01139.htmlhttps://lists.gnu.org/archive/html/qemu-devel/2018-11/msg02795.htmlhttps://seclists.org/bugtraq/2019/May/76https://usn.ubuntu.com/3826-1/https://www.debian.org/security/2019/dsa-4454
2018-12-13
Published