Fabrice Bellard QEMU pci_dma_read/write out-of-bounds

CVSS Meta Temp Score
CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.
Current Exploit Price (≈)
Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.
CTI Interest Score
Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
6.7$0-$5k0.00

Summaryinfo

A vulnerability labeled as problematic has been found in Fabrice Bellard QEMU. The impacted element is an unknown function of the file pci_dma_read/write. Executing a manipulation can lead to out-of-bounds. The identification of this vulnerability is CVE-2015-8817. The attack may be launched remotely. There is no exploit available. A patch should be applied to remediate this issue.

Detailsinfo

A vulnerability classified as critical was found in Fabrice Bellard QEMU (Virtualization Software) (the affected version unknown). This vulnerability affects an unknown part of the file pci_dma_read/write. The manipulation with an unknown input leads to a out-of-bounds vulnerability. The CWE definition for the vulnerability is CWE-125. The product reads data past the end, or before the beginning, of the intended buffer. As an impact it is known to affect confidentiality, integrity, and availability.

The weakness was shared 03/01/2016 as Bug 1300771 as confirmed bug report (Bugzilla). The advisory is available at bugzilla.redhat.com. This vulnerability was named CVE-2015-8817 since 03/01/2016. The exploitation appears to be difficult. The attack needs to be done within the local network. A single authentication is necessary for exploitation. Technical details are known, but there is no available exploit.

The vulnerability scanner Nessus provides a plugin with the ID 91660 (SUSE SLED12 / SLES12 Security Update : qemu (SUSE-SU-2016:1560-1)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family SuSE Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 168944 (SUSE Enterprise Linux Security update for qemu (SUSE-SU-2016:1560-1)).

Applying a patch is able to eliminate this problem. The bugfix is ready for download at git.qemu.org. A possible mitigation has been published 4 months after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at X-Force (111187), Tenable (91660) and SecurityFocus (BID 69654†). The entries VDB-67460, VDB-75987, VDB-81088 and VDB-81155 are related to this item. Once again VulDB remains the best source for vulnerability data.

Productinfo

Type

Vendor

Name

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.3
VulDB Meta Temp Score: 6.7

VulDB Base Score: 9.0
VulDB Temp Score: 7.8
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 5.5
NVD Vector: 🔍

CVSSv2info

AVACAuCIA
💳💳💳💳💳💳
💳💳💳💳💳💳
💳💳💳💳💳💳
VectorComplexityAuthenticationConfidentialityIntegrityAvailability
UnlockUnlockUnlockUnlockUnlockUnlock
UnlockUnlockUnlockUnlockUnlockUnlock
UnlockUnlockUnlockUnlockUnlockUnlock

VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Out-of-bounds
CWE: CWE-125 / CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: Yes

Availability: 🔍
Status: Unproven

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-DayUnlockUnlockUnlockUnlock
TodayUnlockUnlockUnlockUnlock

Nessus ID: 91660
Nessus Name: SUSE SLED12 / SLES12 Security Update : qemu (SUSE-SU-2016:1560-1)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 55710
OpenVAS Name: SuSE Update for xen SUSE-SU-2016:1318-1 (xen)
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Patch
Status: 🔍

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

Patch: 23820dbfc79d1c9dce090b4c555994f2bb6a69b3

Timelineinfo

03/01/2016 🔍
03/01/2016 +0 days 🔍
03/03/2016 +2 days 🔍
06/13/2016 +101 days 🔍
06/17/2016 +4 days 🔍
12/29/2016 +195 days 🔍
07/09/2022 +2018 days 🔍

Sourcesinfo

Vendor: bellard.org

Advisory: Bug 1300771
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2015-8817 (🔍)
GCVE (CVE): GCVE-0-2015-8817
GCVE (VulDB): GCVE-100-81154
X-Force: 111187 - Qemu address_space_translate denial of service
SecurityFocus: 69654

See also: 🔍

Entryinfo

Created: 03/03/2016 10:53
Updated: 07/09/2022 06:47
Changes: 03/03/2016 10:53 (63), 08/19/2018 07:36 (17), 07/09/2022 06:36 (5), 07/09/2022 06:47 (1)
Complete: 🔍
Cache ID: 216:3FD:103

Discussion

No comments yet. Languages: en.

Please log in to comment.

◂ PreviousOverviewNext ▸

Want to know what is going to be exploited?

We predict KEV entries!