CVE-2016-6836
published 2016-12-10CVE-2016-6836: The vmxnet3_complete_packet function in hw/net/vmxnet3.c in QEMU (aka Quick Emulator) allows local guest OS administrators to obtain sensitive host memory…
PriorityP420medium6CVSS 3.1
AVLACLPRHUINSCCHINAN
EPSS
0.40%
32.6th percentile
The vmxnet3_complete_packet function in hw/net/vmxnet3.c in QEMU (aka Quick Emulator) allows local guest OS administrators to obtain sensitive host memory information by leveraging failure to initialize the txcq_descr object.
Affected
9 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| debian | debian_linux | — | — |
| debian | qemu | < qemu 1:2.6+dfsg-3.1 (bookworm) | qemu 1:2.6+dfsg-3.1 (bookworm) |
| qemu | qemu | <= 2.7.1 | — |
| qemu | qemu | >= 0 < 1:2.6+dfsg-3.1 | 1:2.6+dfsg-3.1 |
| qemu | qemu | >= 0 < 1:2.6+dfsg-3.1 | 1:2.6+dfsg-3.1 |
| qemu | qemu | >= 0 < 1:2.6+dfsg-3.1 | 1:2.6+dfsg-3.1 |
| qemu | qemu | >= 0 < 1:2.6+dfsg-3.1 | 1:2.6+dfsg-3.1 |
| 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
Stop checking back — get the weekly exploitation signal.
Every Monday: what got weaponized or added to CISA KEV in the last seven days — each CVE cross-linked to its PoC, Nuclei template, and detection rule. Free, one email a week, unsubscribe in one click.
GHSA
GHSA-rpvr-65rv-4fvq: The vmxnet3_complete_packet function in hw/net/vmxnet3
ghsa_unreviewed·2022-05-13
CVE-2016-6836 [MEDIUM] CWE-665 GHSA-rpvr-65rv-4fvq: The vmxnet3_complete_packet function in hw/net/vmxnet3
The vmxnet3_complete_packet function in hw/net/vmxnet3.c in QEMU (aka Quick Emulator) allows local guest OS administrators to obtain sensitive host memory information by leveraging failure to initialize the txcq_descr object.
OSV
CVE-2016-6836: The vmxnet3_complete_packet function in hw/net/vmxnet3
osv·2016-12-10·CVSS 6.0
CVE-2016-6836 [MEDIUM] CVE-2016-6836: The vmxnet3_complete_packet function in hw/net/vmxnet3
The vmxnet3_complete_packet function in hw/net/vmxnet3.c in QEMU (aka Quick Emulator) allows local guest OS administrators to obtain sensitive host memory information by leveraging failure to initialize the txcq_descr object.
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
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: net: vmxnet: Information leakage in vmxnet3_complete_packet
vendor_redhat·2016-08-11·CVSS 6.0
CVE-2016-6836 [MEDIUM] CWE-200 Qemu: net: vmxnet: Information leakage in vmxnet3_complete_packet
Qemu: net: vmxnet: Information leakage in vmxnet3_complete_packet
The vmxnet3_complete_packet function in hw/net/vmxnet3.c in QEMU (aka Quick Emulator) allows local guest OS administrators to obtain sensitive host memory information by leveraging failure to initialize the txcq_descr object.
Quick Emulator (QEMU) built with the VMWARE VMXNET3 NIC device support is vulnerable to an information leakage issue. The vulnerability could occur while processing the transmit(tx) queue when it reaches the end of a packet. A privileged user inside guest could use this vulnerability to leak host memory bytes to a guest.
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
Pac
Debian
CVE-2016-6836: qemu - The vmxnet3_complete_packet function in hw/net/vmxnet3.c in QEMU (aka Quick Emul...
vendor_debian·2016·CVSS 6.0
CVE-2016-6836 [MEDIUM] CVE-2016-6836: qemu - The vmxnet3_complete_packet function in hw/net/vmxnet3.c in QEMU (aka Quick Emul...
The vmxnet3_complete_packet function in hw/net/vmxnet3.c in QEMU (aka Quick Emulator) allows local guest OS administrators to obtain sensitive host memory information by leveraging failure to initialize the txcq_descr object.
Scope: local
bookworm: resolved (fixed in 1:2.6+dfsg-3.1)
bullseye: resolved (fixed in 1:2.6+dfsg-3.1)
forky: resolved (fixed in 1:2.6+dfsg-3.1)
sid: resolved (fixed in 1:2.6+dfsg-3.1)
trixie: resolved (fixed in 1:2.6+dfsg-3.1)
No detection rules found.
No public exploits indexed.
http://git.qemu.org/?p=qemu.git%3Ba=commit%3Bh=fdda170e50b8af062cf5741e12c4fb5e57a2eacfhttp://www.openwall.com/lists/oss-security/2016/08/11/5http://www.openwall.com/lists/oss-security/2016/08/18/5http://www.securityfocus.com/bid/92444https://lists.debian.org/debian-lts-announce/2018/11/msg00038.htmlhttps://lists.gnu.org/archive/html/qemu-devel/2016-08/msg02108.htmlhttps://security.gentoo.org/glsa/201609-01http://git.qemu.org/?p=qemu.git%3Ba=commit%3Bh=fdda170e50b8af062cf5741e12c4fb5e57a2eacfhttp://www.openwall.com/lists/oss-security/2016/08/11/5http://www.openwall.com/lists/oss-security/2016/08/18/5http://www.securityfocus.com/bid/92444https://lists.debian.org/debian-lts-announce/2018/11/msg00038.htmlhttps://lists.gnu.org/archive/html/qemu-devel/2016-08/msg02108.htmlhttps://security.gentoo.org/glsa/201609-01
2016-12-10
Published