QEMU Virtual Network Device hw/virtio/virtio.c memory corruption
CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
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5.1 | $0-$5k | 0.00 |
A vulnerability was found in QEMU (Virtualization Software) (version unknown). It has been rated as problematic. Affected by this issue is an unknown function of the file hw/virtio/virtio.c of the component Virtual Network Device. The manipulation with an unknown input leads to a memory corruption vulnerability. Using CWE to declare the problem leads to CWE-119. The product performs operations on a memory buffer, but it can read from or write to a memory location that is outside of the intended boundary of the buffer. Impacted is availability. CVE summarizes:
hw/virtio/virtio.c in the Virtual Network Device (virtio-net) support in QEMU, when big or mergeable receive buffers are not supported, allows remote attackers to cause a denial of service (guest network consumption) via a flood of jumbo frames on the (1) tuntap or (2) macvtap interface.
The weakness was published 11/09/2015 by Prasad J Pandit (Website). The advisory is shared for download at openwall.com. This vulnerability is handled as CVE-2015-7295 since 09/18/2015. The exploitation is known to be easy. The attack may be launched remotely. No form of authentication is required for exploitation. There are known technical details, but no exploit is available.
The vulnerability scanner Nessus provides a plugin with the ID 87692 (FreeBSD : qemu -- denial of service vulnerability in virtio-net support (42cbd1e8-b152-11e5-9728-002590263bf5)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family FreeBSD Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 168989 (SUSE Enterprise Linux Security Update for kvm (SUSE-SU-2016:1785-1)).
Upgrading eliminates this vulnerability. A possible mitigation has been published 2 months after the disclosure of the vulnerability.
The vulnerability is also documented in the vulnerability database at Tenable (87692). Similar entry is available at 77704.
Product
Type
Name
License
CPE 2.3
CPE 2.2
CVSSv4
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CVSSv3
VulDB Meta Base Score: 5.3VulDB Meta Temp Score: 5.1
VulDB Base Score: 5.3
VulDB Temp Score: 5.1
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VulDB Reliability: 🔍
CVSSv2
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Exploiting
Class: Memory corruptionCWE: CWE-119
ATT&CK: Unknown
Local: No
Remote: Yes
Availability: 🔍
Status: Not defined
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Nessus ID: 87692
Nessus Name: FreeBSD : qemu -- denial of service vulnerability in virtio-net support (42cbd1e8-b152-11e5-9728-002590263bf5)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍
OpenVAS ID: 850584
OpenVAS Name: SuSE Update for qemu SUSE-SU-2016:1560-1 (qemu)
OpenVAS File: 🔍
OpenVAS Family: 🔍
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Threat Intelligence
Interest: 🔍Active Actors: 🔍
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Countermeasures
Recommended: UpgradeStatus: 🔍
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Timeline
09/18/2015 🔍10/28/2015 🔍
11/09/2015 🔍
11/09/2015 🔍
11/09/2015 🔍
11/10/2015 🔍
11/15/2015 🔍
01/02/2016 🔍
01/04/2016 🔍
06/26/2022 🔍
Sources
Product: qemu.orgAdvisory: FEDORA-2015-d5c1048b47
Researcher: Prasad J Pandit
Status: Not defined
CVE: CVE-2015-7295 (🔍)
Vulnerability Center: 54404 - QEMU Remote DoS via Receiving Large Packets Over the tuntap/macvtap Interfaces, Medium
SecurityFocus: 82672 - QEMU 'hw/virtio/virtio.c' Denial of Service Vulnerability
See also: 🔍
Entry
Created: 11/10/2015 09:55Updated: 06/26/2022 13:31
Changes: 11/10/2015 09:55 (58), 04/12/2018 17:14 (17), 06/26/2022 13:31 (3)
Complete: 🔍
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