QEMU SCSI MegaRAID SAS HBA Emulation megasas_ctrl_get_info memory corruption
CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
---|---|---|
7.5 | $0-$5k | 0.00 |
A vulnerability has been found in QEMU (Virtualization Software) (version unknown) and classified as very critical. Affected by this vulnerability is the function megasas_ctrl_get_info
of the component SCSI MegaRAID SAS HBA Emulation. The manipulation with an unknown input leads to a memory corruption vulnerability. The CWE definition for the vulnerability is 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. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:
Stack-based buffer overflow in the megasas_ctrl_get_info function in QEMU, when built with SCSI MegaRAID SAS HBA emulation support, allows local guest users to cause a denial of service (QEMU instance crash) via a crafted SCSI controller CTRL_GET_INFO command.
The bug was discovered 12/21/2015. The weakness was shared 04/11/2017 by Qinghao Tang with Qihoo 360 (oss-sec). The advisory is shared at openwall.com. This vulnerability is known as CVE-2015-8613 since 12/21/2015. The attack can be launched remotely. The exploitation doesn't need any form of authentication. Technical details are known, but no exploit is available. The price for an exploit might be around USD $0-$5k at the moment (estimation calculated on 08/29/2020).
The vulnerability was handled as a non-public zero-day exploit for at least 49 days. During that time the estimated underground price was around $25k-$100k. The vulnerability scanner Nessus provides a plugin with the ID 88630 (Debian DSA-3471-1 : qemu - security update), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Debian Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 168962 (OpenSuSE Security Update for qemu (openSUSE-SU-2016:1750-1)).
Upgrading eliminates this vulnerability. A possible mitigation has been published before and not just after the disclosure of the vulnerability.
The vulnerability is also documented in the vulnerability database at Tenable (88630). The entries 80761, 80762, 94715 and 94716 are related to this item.
Product
Type
Name
License
CPE 2.3
CPE 2.2
CVSSv4
VulDB CVSS-B Score: 🔍VulDB CVSS-BT Score: 🔍
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CVSSv3
VulDB Meta Base Score: 7.8VulDB Meta Temp Score: 7.6
VulDB Base Score: 10.0
VulDB Temp Score: 9.5
VulDB Vector: 🔍
VulDB Reliability: 🔍
NVD Base Score: 5.6
NVD Vector: 🔍
CVSSv2
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VulDB Base Score: 🔍
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Exploiting
Class: Memory corruptionCWE: CWE-119
CAPEC: 🔍
ATT&CK: 🔍
Local: No
Remote: Yes
Availability: 🔍
Status: Not defined
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Current Price Estimation: 🔍
0-Day | unlock | unlock | unlock | unlock |
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Nessus ID: 88630
Nessus Name: Debian DSA-3471-1 : qemu - security update
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍
OpenVAS ID: 703471
OpenVAS Name: Debian Security Advisory DSA 3471-1 (qemu - security update)
OpenVAS File: 🔍
OpenVAS Family: 🔍
Qualys ID: 🔍
Qualys Name: 🔍
Threat Intelligence
Interest: 🔍Active Actors: 🔍
Active APT Groups: 🔍
Countermeasures
Recommended: UpgradeStatus: 🔍
0-Day Time: 🔍
Timeline
12/21/2015 🔍12/21/2015 🔍
12/21/2015 🔍
02/08/2016 🔍
02/09/2016 🔍
04/11/2017 🔍
04/11/2017 🔍
04/12/2017 🔍
08/29/2020 🔍
Sources
Product: qemu.orgAdvisory: openwall.com
Researcher: Qinghao Tang
Organization: Qihoo 360
Status: Not defined
Confirmation: 🔍
CVE: CVE-2015-8613 (🔍)
SecurityFocus: 79719 - QEMU CVE-2015-8613 Stack Based Buffer Overflow Vulnerability
OSVDB: - CVE-2015-8613 - QEMU - Buffer Overflow Issue
See also: 🔍
Entry
Created: 04/12/2017 10:03Updated: 08/29/2020 09:43
Changes: 04/12/2017 10:03 (77), 08/29/2020 09:43 (4)
Complete: 🔍
Cache ID: 18:F05:103
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