CVE-2017-15038
published 2017-10-10CVE-2017-15038: Race condition in the v9fs_xattrwalk function in hw/9pfs/9p.c in QEMU (aka Quick Emulator) allows local guest OS users to obtain sensitive information from…
PriorityP422medium5.6CVSS 3.0
AVLACHPRLUINSCCHINAN
EPSS
0.28%
20.2th percentile
Race condition in the v9fs_xattrwalk function in hw/9pfs/9p.c in QEMU (aka Quick Emulator) allows local guest OS users to obtain sensitive information from host heap memory via vectors related to reading extended attributes.
Affected
10 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| debian | qemu | < qemu 1:2.10.0+dfsg-2 (bookworm) | qemu 1:2.10.0+dfsg-2 (bookworm) |
| qemu | qemu | <= 2.9.1 | — |
| qemu | qemu | >= 0 < 1:2.10.0+dfsg-2 | 1:2.10.0+dfsg-2 |
| qemu | qemu | >= 0 < 1:2.10.0+dfsg-2 | 1:2.10.0+dfsg-2 |
| qemu | qemu | >= 0 < 1:2.10.0+dfsg-2 | 1:2.10.0+dfsg-2 |
| qemu | qemu | >= 0 < 1:2.10.0+dfsg-2 | 1:2.10.0+dfsg-2 |
| qemu | qemu | >= 0 < 2.0.0+dfsg-2ubuntu1.39 | 2.0.0+dfsg-2ubuntu1.39 |
| qemu | qemu | >= 0 < 2.0.0+dfsg-2ubuntu1.40 | 2.0.0+dfsg-2ubuntu1.40 |
| qemu | qemu | >= 0 < 1:2.5+dfsg-5ubuntu10.22 | 1:2.5+dfsg-5ubuntu10.22 |
| qemu | qemu | >= 0 < 1:2.5+dfsg-5ubuntu10.24 | 1:2.5+dfsg-5ubuntu10.24 |
CVSS provenance
nvdv3.05.6MEDIUMCVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:N/A:N
nvdv2.01.9LOWAV:L/AC:M/Au:N/C:P/I:N/A:N
osv5.6MEDIUM
vendor_debian5.6MEDIUM
vendor_redhat5.6MEDIUM
vendor_ubuntu4.4MEDIUM
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Ubuntu
QEMU regression
vendor_ubuntu·2018-03-05·CVSS 4.4
CVE-2017-11334 [MEDIUM] QEMU regression
Title: QEMU regression
Summary: USN-3575-1 introduced a regression in QEMU.
USN-3575-1 fixed vulnerabilities in QEMU. The fix for CVE-2017-11334 caused
a regression in Xen environments. This update removes the problematic fix
pending further investigation.
We apologize for the inconvenience.
Original advisory details:
It was discovered that QEMU incorrectly handled guest ram. A privileged
attacker inside the guest could use this issue to cause QEMU to crash,
resulting in a denial of service. This issue only affected Ubuntu 14.04 LTS
and Ubuntu 16.04 LTS. (CVE-2017-11334)
David Buchanan discovered that QEMU incorrectly handled the VGA device. A
privileged attacker inside the guest could use this issue to cause QEMU to
crash, resulting in a denial of service. This issue was only addres
Ubuntu
QEMU vulnerabilities
vendor_ubuntu·2018-02-20·CVSS 4.4
CVE-2017-11334 [MEDIUM] QEMU vulnerabilities
Title: QEMU vulnerabilities
Summary: Several security issues were fixed in QEMU.
It was discovered that QEMU incorrectly handled guest ram. A privileged
attacker inside the guest could use this issue to cause QEMU to crash,
resulting in a denial of service. This issue only affected Ubuntu 14.04 LTS
and Ubuntu 16.04 LTS. (CVE-2017-11334)
David Buchanan discovered that QEMU incorrectly handled the VGA device. A
privileged attacker inside the guest could use this issue to cause QEMU to
crash, resulting in a denial of service. This issue was only addressed in
Ubuntu 17.10. (CVE-2017-13672)
Thomas Garnier discovered that QEMU incorrectly handled multiboot. An
attacker could use this issue to cause QEMU to crash, resulting in a denial
of service, or possibly execute arbitrary code on the hos
Red Hat
Qemu: 9p: virtfs: information disclosure when reading extended attributes
vendor_redhat·2017-10-04·CVSS 5.6
CVE-2017-15038 [MEDIUM] CWE-200 Qemu: 9p: virtfs: information disclosure when reading extended attributes
Qemu: 9p: virtfs: information disclosure when reading extended attributes
Race condition in the v9fs_xattrwalk function in hw/9pfs/9p.c in QEMU (aka Quick Emulator) allows local guest OS users to obtain sensitive information from host heap memory via vectors related to reading extended attributes.
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-rhev (Red Hat Enterprise Linux 7) - Not affected
Package: qemu-kvm-rhev (Red Hat Enterprise Linux OpenStack Platform 7 (Kilo)) - Not affected
Package: qemu-kvm-rhev (Red Hat OpenStack Platform 10 (Newton)) - Not affected
Package: qemu-k
Debian
CVE-2017-15038: qemu - Race condition in the v9fs_xattrwalk function in hw/9pfs/9p.c in QEMU (aka Quick...
vendor_debian·2017·CVSS 5.6
CVE-2017-15038 [MEDIUM] CVE-2017-15038: qemu - Race condition in the v9fs_xattrwalk function in hw/9pfs/9p.c in QEMU (aka Quick...
Race condition in the v9fs_xattrwalk function in hw/9pfs/9p.c in QEMU (aka Quick Emulator) allows local guest OS users to obtain sensitive information from host heap memory via vectors related to reading extended attributes.
Scope: local
bookworm: resolved (fixed in 1:2.10.0+dfsg-2)
bullseye: resolved (fixed in 1:2.10.0+dfsg-2)
forky: resolved (fixed in 1:2.10.0+dfsg-2)
sid: resolved (fixed in 1:2.10.0+dfsg-2)
trixie: resolved (fixed in 1:2.10.0+dfsg-2)
GHSA
GHSA-wvr5-3fwj-8f26: Race condition in the v9fs_xattrwalk function in hw/9pfs/9p
ghsa_unreviewed·2022-05-14
CVE-2017-15038 [MEDIUM] CWE-362 GHSA-wvr5-3fwj-8f26: Race condition in the v9fs_xattrwalk function in hw/9pfs/9p
Race condition in the v9fs_xattrwalk function in hw/9pfs/9p.c in QEMU (aka Quick Emulator) allows local guest OS users to obtain sensitive information from host heap memory via vectors related to reading extended attributes.
OSV
qemu regression
osv·2018-03-05·CVSS 4.4
CVE-2017-11334 [MEDIUM] qemu regression
qemu regression
USN-3575-1 fixed vulnerabilities in QEMU. The fix for CVE-2017-11334 caused
a regression in Xen environments. This update removes the problematic fix
pending further investigation.
We apologize for the inconvenience.
Original advisory details:
It was discovered that QEMU incorrectly handled guest ram. A privileged
attacker inside the guest could use this issue to cause QEMU to crash,
resulting in a denial of service. This issue only affected Ubuntu 14.04 LTS
and Ubuntu 16.04 LTS. (CVE-2017-11334)
David Buchanan discovered that QEMU incorrectly handled the VGA device. A
privileged attacker inside the guest could use this issue to cause QEMU to
crash, resulting in a denial of service. This issue was only addressed in
Ubuntu 17.10. (CVE-2017-13672)
Thomas Garnier discove
OSV
qemu vulnerabilities
osv·2018-02-20·CVSS 4.4
CVE-2017-11334 [MEDIUM] qemu vulnerabilities
qemu vulnerabilities
It was discovered that QEMU incorrectly handled guest ram. A privileged
attacker inside the guest could use this issue to cause QEMU to crash,
resulting in a denial of service. This issue only affected Ubuntu 14.04 LTS
and Ubuntu 16.04 LTS. (CVE-2017-11334)
David Buchanan discovered that QEMU incorrectly handled the VGA device. A
privileged attacker inside the guest could use this issue to cause QEMU to
crash, resulting in a denial of service. This issue was only addressed in
Ubuntu 17.10. (CVE-2017-13672)
Thomas Garnier discovered that QEMU incorrectly handled multiboot. An
attacker 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 libvir
OSV
CVE-2017-15038: Race condition in the v9fs_xattrwalk function in hw/9pfs/9p
osv·2017-10-10·CVSS 5.6
CVE-2017-15038 [MEDIUM] CVE-2017-15038: Race condition in the v9fs_xattrwalk function in hw/9pfs/9p
Race condition in the v9fs_xattrwalk function in hw/9pfs/9p.c in QEMU (aka Quick Emulator) allows local guest OS users to obtain sensitive information from host heap memory via vectors related to reading extended attributes.
No detection rules found.
No public exploits indexed.
Bugzilla
CVE-2017-15038 Qemu: 9p: virtfs: information disclosure when reading extended attributes
bugzilla·2017-10-06·CVSS 5.6
CVE-2017-15038 [MEDIUM] CVE-2017-15038 Qemu: 9p: virtfs: information disclosure when reading extended attributes
CVE-2017-15038 Qemu: 9p: virtfs: information disclosure when reading extended attributes
Quick Emulator(Qemu) built with the VirtFS, host directory sharing via Plan 9
File System(9pfs) support, is vulnerable to an information disclosure issue.
It could occur while accessing extended attributes of a file due to a race
condition.
A user inside guest could use this flaw to disclose uninitialised heap
memory contents on the host.
Upstream patch:
-> https://lists.gnu.org/archive/html/qemu-devel/2017-10/msg00729.html
Reference:
-> http://www.openwall.com/lists/oss-security/2017/10/06/1
Discussion:
Acknowledgments:
Name: Tuomas Tynkkynen
---
Created qemu tracking bugs for this issue:
Affects: fedora-all [bug 1499111]
---
qemu-2.9.1-2.fc26 has been pushed to the Fedora 26 stable reposi
Bugzilla
CVE-2017-15038 Qemu: 9p: virtfs: information disclosure when reading extended attributes [fedora-all]
bugzilla·2017-10-06·CVSS 5.6
CVE-2017-15038 [MEDIUM] CVE-2017-15038 Qemu: 9p: virtfs: information disclosure when reading extended attributes [fedora-all]
CVE-2017-15038 Qemu: 9p: virtfs: information disclosure when reading extended attributes [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 mul
http://www.openwall.com/lists/oss-security/2017/10/06/1https://lists.debian.org/debian-lts-announce/2018/09/msg00007.htmlhttps://lists.gnu.org/archive/html/qemu-devel/2017-10/msg00729.htmlhttps://usn.ubuntu.com/3575-1/https://www.debian.org/security/2018/dsa-4213http://www.openwall.com/lists/oss-security/2017/10/06/1https://lists.debian.org/debian-lts-announce/2018/09/msg00007.htmlhttps://lists.gnu.org/archive/html/qemu-devel/2017-10/msg00729.htmlhttps://usn.ubuntu.com/3575-1/https://www.debian.org/security/2018/dsa-4213
2017-10-10
Published