CVE-2016-9103
published 2016-12-09CVE-2016-9103: The v9fs_xattrcreate function in hw/9pfs/9p.c in QEMU (aka Quick Emulator) allows local guest OS administrators to obtain sensitive host heap memory…
PriorityP420medium6CVSS 3.1
AVLACLPRHUINSCCHINAN
EPSS
0.39%
31.9th percentile
The v9fs_xattrcreate function in hw/9pfs/9p.c in QEMU (aka Quick Emulator) allows local guest OS administrators to obtain sensitive host heap memory information by reading xattribute values before writing to them.
Affected
9 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| debian | debian_linux | — | — |
| debian | qemu | < qemu 1:2.8+dfsg-1 (bookworm) | qemu 1:2.8+dfsg-1 (bookworm) |
| qemu | qemu | <= 2.7.1 | — |
| qemu | qemu | >= 0 < 1:2.8+dfsg-1 | 1:2.8+dfsg-1 |
| qemu | qemu | >= 0 < 1:2.8+dfsg-1 | 1:2.8+dfsg-1 |
| qemu | qemu | >= 0 < 1:2.8+dfsg-1 | 1:2.8+dfsg-1 |
| qemu | qemu | >= 0 < 1:2.8+dfsg-1 | 1:2.8+dfsg-1 |
| qemu | qemu | >= 0 < 2.0.0+dfsg-2ubuntu1.30 | 2.0.0+dfsg-2ubuntu1.30 |
| qemu | qemu | >= 0 < 1:2.5+dfsg-5ubuntu10.6 | 1:2.5+dfsg-5ubuntu10.6 |
CVSS provenance
nvdv3.16.0MEDIUMCVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:N/A:N
nvdv2.02.1LOWAV:L/AC:L/Au:N/C:P/I:N/A:N
osv6.0MEDIUM
vendor_debian6.0MEDIUM
vendor_redhat6.0MEDIUM
vendor_ubuntu5.5MEDIUM
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Ubuntu
QEMU vulnerabilities
vendor_ubuntu·2016-11-09·CVSS 5.5
CVE-2016-5403 [MEDIUM] QEMU vulnerabilities
Title: QEMU vulnerabilities
Summary: Several security issues were fixed in QEMU.
Zhenhao Hong discovered that QEMU incorrectly handled the Virtio module. A
privileged attacker inside the guest could use this issue to cause QEMU to
consume resources, resulting in a denial of service. (CVE-2016-5403)
Li Qiang discovered that QEMU incorrectly handled VMWARE VMXNET3 network
card emulation support. 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, Ubuntu 16.04 LTS and Ubuntu 16.10.
(CVE-2016-6833, CVE-2016-6834, CVE-2016-6888)
Li Qiang discovered that QEMU incorrectly handled VMWARE VMXNET3 network
card emulation support. A privileged attacker inside the guest could use
this issue
Red Hat
Qemu: 9pfs: information leakage via xattr
vendor_redhat·2016-10-08·CVSS 6.0
CVE-2016-9103 [MEDIUM] CWE-200 Qemu: 9pfs: information leakage via xattr
Qemu: 9pfs: information leakage via xattr
The v9fs_xattrcreate function in hw/9pfs/9p.c in QEMU (aka Quick Emulator) allows local guest OS administrators to obtain sensitive host heap memory information by reading xattribute values before writing to them.
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) - Will not fix
Package: qemu-kvm-rhev (Red Hat Enterprise Linux 7) - Will not fix
Package: qemu-kvm-rhev (Red Hat Enterprise Linux OpenStack Platform 5 (Icehouse)) - Not affected
Package: qemu-kvm-rhev (Red Hat Enterprise Linux OpenStack Platform 6 (Juno)) - Not affected
Package: qemu-kvm-rhev (Red Hat Enterpri
Debian
CVE-2016-9103: qemu - The v9fs_xattrcreate function in hw/9pfs/9p.c in QEMU (aka Quick Emulator) allow...
vendor_debian·2016·CVSS 6.0
CVE-2016-9103 [MEDIUM] CVE-2016-9103: qemu - The v9fs_xattrcreate function in hw/9pfs/9p.c in QEMU (aka Quick Emulator) allow...
The v9fs_xattrcreate function in hw/9pfs/9p.c in QEMU (aka Quick Emulator) allows local guest OS administrators to obtain sensitive host heap memory information by reading xattribute values before writing to them.
Scope: local
bookworm: resolved (fixed in 1:2.8+dfsg-1)
bullseye: resolved (fixed in 1:2.8+dfsg-1)
forky: resolved (fixed in 1:2.8+dfsg-1)
sid: resolved (fixed in 1:2.8+dfsg-1)
trixie: resolved (fixed in 1:2.8+dfsg-1)
GHSA
GHSA-fccr-xcx6-vcvx: The v9fs_xattrcreate function in hw/9pfs/9p
ghsa_unreviewed·2022-05-13
CVE-2016-9103 [MEDIUM] CWE-200 GHSA-fccr-xcx6-vcvx: The v9fs_xattrcreate function in hw/9pfs/9p
The v9fs_xattrcreate function in hw/9pfs/9p.c in QEMU (aka Quick Emulator) allows local guest OS administrators to obtain sensitive host heap memory information by reading xattribute values before writing to them.
OSV
CVE-2016-9103: The v9fs_xattrcreate function in hw/9pfs/9p
osv·2016-12-09·CVSS 6.0
CVE-2016-9103 [MEDIUM] CVE-2016-9103: The v9fs_xattrcreate function in hw/9pfs/9p
The v9fs_xattrcreate function in hw/9pfs/9p.c in QEMU (aka Quick Emulator) allows local guest OS administrators to obtain sensitive host heap memory information by reading xattribute values before writing to them.
OSV
qemu, qemu-kvm vulnerabilities
osv·2016-11-09·CVSS 5.5
CVE-2016-5403 [MEDIUM] qemu, qemu-kvm vulnerabilities
qemu, qemu-kvm vulnerabilities
Zhenhao Hong discovered that QEMU incorrectly handled the Virtio module. A
privileged attacker inside the guest could use this issue to cause QEMU to
consume resources, resulting in a denial of service. (CVE-2016-5403)
Li Qiang discovered that QEMU incorrectly handled VMWARE VMXNET3 network
card emulation support. 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, Ubuntu 16.04 LTS and Ubuntu 16.10.
(CVE-2016-6833, CVE-2016-6834, CVE-2016-6888)
Li Qiang discovered that QEMU incorrectly handled VMWARE VMXNET3 network
card emulation support. A privileged attacker inside the guest could use
this issue to cause QEMU to crash, resulting in a denial of se
No detection rules found.
No public exploits indexed.
Bugzilla
CVE-2016-9103 Qemu: 9pfs: information leakage via xattr [fedora-all]
bugzilla·2016-10-28·CVSS 6.0
CVE-2016-9103 [MEDIUM] CVE-2016-9103 Qemu: 9pfs: information leakage via xattr [fedora-all]
CVE-2016-9103 Qemu: 9pfs: information leakage via xattr [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.
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 supported versions of Fedora. W
Bugzilla
CVE-2016-9103 Qemu: 9pfs: information leakage via xattr
bugzilla·2016-10-28·CVSS 6.0
CVE-2016-9103 [MEDIUM] CVE-2016-9103 Qemu: 9pfs: information leakage via xattr
CVE-2016-9103 Qemu: 9pfs: information leakage via xattr
Quick Emulator(Qemu) built with the VirtFS, host directory sharing via Plan 9
File System(9pfs) support, is vulnerable to an information leakage issue. It
could occur by accessing xattribute value before it's written to.
A privileged user inside guest could use this flaw to leak host memory bytes.
Upstream patches:
-> https://lists.gnu.org/archive/html/qemu-devel/2016-10/msg01790.html
Reference:
-> http://wiki.qemu.org/Documentation/9psetup
Discussion:
Acknowledgments:
Name: Li Qiang (360.cn Inc.)
---
Created xen tracking bugs for this issue:
Affects: fedora-all [bug 1389644]
---
Created qemu tracking bugs for this issue:
Affects: fedora-all [bug 1389643]
---
CVE assignment:
http://seclists.org/oss-sec/2016/q4/279
---
Bugzilla
CVE-2016-9103 xen: Qemu: 9pfs: information leakage via xattr [fedora-all]
bugzilla·2016-10-28·CVSS 6.0
CVE-2016-9103 [MEDIUM] CVE-2016-9103 xen: Qemu: 9pfs: information leakage via xattr [fedora-all]
CVE-2016-9103 xen: Qemu: 9pfs: information leakage via xattr [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.
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 supported versions of Fedo
http://git.qemu.org/?p=qemu.git%3Ba=commit%3Bh=eb687602853b4ae656e9236ee4222609f3a6887dhttp://www.openwall.com/lists/oss-security/2016/10/28/1http://www.openwall.com/lists/oss-security/2016/10/30/7http://www.securityfocus.com/bid/93955https://lists.debian.org/debian-lts-announce/2018/11/msg00038.htmlhttps://lists.gnu.org/archive/html/qemu-devel/2016-10/msg01790.htmlhttps://security.gentoo.org/glsa/201611-11http://git.qemu.org/?p=qemu.git%3Ba=commit%3Bh=eb687602853b4ae656e9236ee4222609f3a6887dhttp://www.openwall.com/lists/oss-security/2016/10/28/1http://www.openwall.com/lists/oss-security/2016/10/30/7http://www.securityfocus.com/bid/93955https://lists.debian.org/debian-lts-announce/2018/11/msg00038.htmlhttps://lists.gnu.org/archive/html/qemu-devel/2016-10/msg01790.htmlhttps://security.gentoo.org/glsa/201611-11
2016-12-09
Published