QEMU cirrus_vga_rop.h out-of-bounds

CVSS Meta Temp Score
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CTI Interest Score
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A vulnerability was found in QEMU (Virtualization Software) (the affected version unknown) and classified as problematic. Affected by this issue is the function cirrus_bitblt_rop_fwd_transp_/cirrus_bitblt_rop_fwd_ of the file hw/display/cirrus_vga_rop.h. The manipulation with an unknown input leads to a out-of-bounds vulnerability. Using CWE to declare the problem leads to CWE-125. The product reads data past the end, or before the beginning, of the intended buffer. Impacted is availability.

The bug was discovered 04/19/2017. The weakness was presented 04/20/2017 with Huawei (oss-sec). The advisory is available at openwall.com. This vulnerability is handled as CVE-2017-7718 since 04/12/2017. Local access is required to approach this attack. A simple authentication is necessary for exploitation. Technical details are known, but there is no available exploit.

The vulnerability was handled as a non-public zero-day exploit for at least 1 days. During that time the estimated underground price was around $0-$5k. The vulnerability scanner Nessus provides a plugin with the ID 100068 (CentOS 6 : qemu-kvm (CESA-2017:1206)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family CentOS Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 170142 (SUSE Enterprise Linux Security Update for qemu (SUSE-SU-2017:1774-1)).

Applying a patch is able to eliminate this problem. The bugfix is ready for download at git.qemu-project.org. A possible mitigation has been published 3 weeks after the disclosure of the vulnerability.

The vulnerability is also documented in the vulnerability database at Tenable (100068). See 98316, 99556, 100808 and 100809 for similar entries.





CPE 2.3info

CPE 2.2info


VulDB Meta Base Score: 4.4
VulDB Meta Temp Score: 4.3

VulDB Base Score: 3.3
VulDB Temp Score: 3.2
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 5.5
NVD Vector: 🔍



VulDB Base Score: 🔍
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NVD Base Score: 🔍


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

Local: Yes
Remote: No

Availability: 🔍
Status: Not defined

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EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍


Nessus ID: 100068
Nessus Name: CentOS 6 : qemu-kvm (CESA-2017:1206)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 871165
OpenVAS Name: RedHat Update for qemu-kvm RHSA-2017:1206-01
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

Interest: 🔍
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Active APT Groups: 🔍


Recommended: Patch
Status: 🔍

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

Patch: 215902d7b6fb50c6fc216fc74f770858278ed904


04/12/2017 🔍
04/19/2017 +7 days 🔍
04/19/2017 +0 days 🔍
04/20/2017 +1 days 🔍
04/20/2017 +0 days 🔍
04/21/2017 +1 days 🔍
05/09/2017 +18 days 🔍
05/10/2017 +1 days 🔍
12/01/2022 +2031 days 🔍


Product: qemu.org

Advisory: RHSA-2017:1206
Researcher: Jiangxin
Organization: Huawei
Status: Not defined
Confirmation: 🔍

CVE: CVE-2017-7718 (🔍)
SecurityFocus: 97957 - QEMU 'hw/display/cirrus_vga_rop.h' Multiple Memory Corruption Vulnerabilities
OSVDB: - CVE-2017-7718 - QEMU - Out-of-Bounds Read Issue

See also: 🔍


Created: 04/21/2017 10:17 AM
Updated: 12/01/2022 04:22 PM
Changes: 04/21/2017 10:17 AM (77), 09/19/2020 10:09 AM (6), 12/21/2020 12:03 PM (3), 12/01/2022 04:14 PM (4), 12/01/2022 04:22 PM (1)
Complete: 🔍


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