QEMU Virtual Network Device hw/virtio/virtio.c memory corruption

CVSS Meta Temp Score
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CTI Interest Score
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5.1$0-$5k0.00

Summaryinfo

A vulnerability classified as problematic was found in QEMU. Affected is an unknown function of the file hw/virtio/virtio.c of the component Virtual Network Device. Such manipulation leads to memory corruption. This vulnerability is referenced as CVE-2015-7295. No exploit is available. Upgrading the affected component is advised.

Detailsinfo

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 databases at Tenable (87692), SecurityFocus (BID 82672†) and Vulnerability Center (SBV-54404†). Similar entry is available at VDB-77704. If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.3
VulDB Meta Temp Score: 5.1

VulDB Base Score: 5.3
VulDB Temp Score: 5.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
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NVD Base Score: 🔍

Exploitinginfo

Class: Memory corruption
CWE: CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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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: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

Reaction Time: 🔍
0-Day Time: 🔍
Exposure Time: 🔍

Timelineinfo

09/18/2015 🔍
10/28/2015 +40 days 🔍
11/09/2015 +12 days 🔍
11/09/2015 +0 days 🔍
11/09/2015 +0 days 🔍
11/10/2015 +1 days 🔍
11/15/2015 +5 days 🔍
01/02/2016 +48 days 🔍
01/04/2016 +2 days 🔍
06/26/2022 +2365 days 🔍

Sourcesinfo

Product: qemu.org

Advisory: FEDORA-2015-d5c1048b47
Researcher: Prasad J Pandit
Status: Not defined

CVE: CVE-2015-7295 (🔍)
GCVE (CVE): GCVE-0-2015-7295
GCVE (VulDB): GCVE-100-79100
SecurityFocus: 82672 - QEMU 'hw/virtio/virtio.c' Denial of Service Vulnerability
Vulnerability Center: 54404 - QEMU Remote DoS via Receiving Large Packets Over the tuntap/macvtap Interfaces, Medium

See also: 🔍

Entryinfo

Created: 11/10/2015 09:55
Updated: 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: 🔍
Cache ID: 216:92C:103

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