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CVE-2017-7718 (GCVE-0-2017-7718)
Vulnerability from cvelistv5 – Published: 2017-04-20 17:00 – Updated: 2024-08-05 16:12
VLAI?
EPSS
Summary
hw/display/cirrus_vga_rop.h in QEMU (aka Quick Emulator) allows local guest OS privileged users to cause a denial of service (out-of-bounds read and QEMU process crash) via vectors related to copying VGA data via the cirrus_bitblt_rop_fwd_transp_ and cirrus_bitblt_rop_fwd_ functions.
Severity ?
No CVSS data available.
CWE
- n/a
Assigner
References
17 references
Date Public ?
2017-04-19 00:00
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"vulnStatus": "Modified",
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},
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}
}
CNVD-2017-06099
Vulnerability from cnvd - Published: 2017-05-08
VLAI Severity ?
Title
QEMU 'hw/display/cirrus_vga_rop.h'存在多个内存破坏漏洞
Description
QEMU是一款开源模拟器软件。
QEMU 'hw/display/cirrus_vga_rop.h'存在多个内存破坏漏洞，允许本地特权用户提交特殊的请求，使系统崩溃。
Severity
低
Patch Name
QEMU 'hw/display/cirrus_vga_rop.h'存在多个内存破坏漏洞的补丁
Patch Description
QEMU是一款开源模拟器软件。
QEMU 'hw/display/cirrus_vga_rop.h'存在多个内存破坏漏洞，允许本地特权用户提交特殊的请求，使系统崩溃。目前，供应商发布了安全公告及相关补丁信息，修复了此漏洞。
Formal description
用户可参考如下厂商提供的安全补丁以修复该漏洞： http://git.qemu-project.org/?p=qemu.git;a=commit;h=215902d7b6fb50c6fc216fc74f770858278ed904
Reference
http://www.securityfocus.com/bid/97957
https://nvd.nist.gov/vuln/detail/CVE-2017-7718
Impacted products
| Name | QEMU QEMU 0 |
|---|
{
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"bidNumber": "97957"
}
},
"cves": {
"cve": {
"cveNumber": "CVE-2017-7718"
}
},
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"discovererName": "Jiangxin of PSIRT Huawei Inc.",
"formalWay": "\u7528\u6237\u53ef\u53c2\u8003\u5982\u4e0b\u5382\u5546\u63d0\u4f9b\u7684\u5b89\u5168\u8865\u4e01\u4ee5\u4fee\u590d\u8be5\u6f0f\u6d1e\uff1a\r\nhttp://git.qemu-project.org/?p=qemu.git;a=commit;h=215902d7b6fb50c6fc216fc74f770858278ed904",
"isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
"number": "CNVD-2017-06099",
"openTime": "2017-05-08",
"patchDescription": "QEMU\u662f\u4e00\u6b3e\u5f00\u6e90\u6a21\u62df\u5668\u8f6f\u4ef6\u3002\r\n\r\nQEMU \u0027hw/display/cirrus_vga_rop.h\u0027\u5b58\u5728\u591a\u4e2a\u5185\u5b58\u7834\u574f\u6f0f\u6d1e\uff0c\u5141\u8bb8\u672c\u5730\u7279\u6743\u7528\u6237\u63d0\u4ea4\u7279\u6b8a\u7684\u8bf7\u6c42\uff0c\u4f7f\u7cfb\u7edf\u5d29\u6e83\u3002\u76ee\u524d\uff0c\u4f9b\u5e94\u5546\u53d1\u5e03\u4e86\u5b89\u5168\u516c\u544a\u53ca\u76f8\u5173\u8865\u4e01\u4fe1\u606f\uff0c\u4fee\u590d\u4e86\u6b64\u6f0f\u6d1e\u3002",
"patchName": "QEMU \u0027hw/display/cirrus_vga_rop.h\u0027\u5b58\u5728\u591a\u4e2a\u5185\u5b58\u7834\u574f\u6f0f\u6d1e\u7684\u8865\u4e01",
"products": {
"product": "QEMU QEMU 0"
},
"referenceLink": "http://www.securityfocus.com/bid/97957\r\nhttps://nvd.nist.gov/vuln/detail/CVE-2017-7718",
"serverity": "\u4f4e",
"submitTime": "2017-04-24",
"title": "QEMU \u0027hw/display/cirrus_vga_rop.h\u0027\u5b58\u5728\u591a\u4e2a\u5185\u5b58\u7834\u574f\u6f0f\u6d1e"
}
FKIE_CVE-2017-7718
Vulnerability from fkie_nvd - Published: 2017-04-20 17:59 - Updated: 2026-05-13 00:24
Severity ?
Summary
hw/display/cirrus_vga_rop.h in QEMU (aka Quick Emulator) allows local guest OS privileged users to cause a denial of service (out-of-bounds read and QEMU process crash) via vectors related to copying VGA data via the cirrus_bitblt_rop_fwd_transp_ and cirrus_bitblt_rop_fwd_ functions.
References
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}
],
"id": "CVE-2017-7718",
"lastModified": "2026-05-13T00:24:29.033",
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}
GHSA-GRQV-X6Q8-X92G
Vulnerability from github – Published: 2022-05-13 01:13 – Updated: 2025-04-20 03:36
VLAI?
Details
hw/display/cirrus_vga_rop.h in QEMU (aka Quick Emulator) allows local guest OS privileged users to cause a denial of service (out-of-bounds read and QEMU process crash) via vectors related to copying VGA data via the cirrus_bitblt_rop_fwd_transp_ and cirrus_bitblt_rop_fwd_ functions.
Severity ?
5.5 (Medium)
{
"affected": [],
"aliases": [
"CVE-2017-7718"
],
"database_specific": {
"cwe_ids": [
"CWE-125"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2017-04-20T17:59:00Z",
"severity": "MODERATE"
},
"details": "hw/display/cirrus_vga_rop.h in QEMU (aka Quick Emulator) allows local guest OS privileged users to cause a denial of service (out-of-bounds read and QEMU process crash) via vectors related to copying VGA data via the cirrus_bitblt_rop_fwd_transp_ and cirrus_bitblt_rop_fwd_ functions.",
"id": "GHSA-grqv-x6q8-x92g",
"modified": "2025-04-20T03:36:18Z",
"published": "2022-05-13T01:13:40Z",
"references": [
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}
GSD-2017-7718
Vulnerability from gsd - Updated: 2023-12-13 01:21Details
hw/display/cirrus_vga_rop.h in QEMU (aka Quick Emulator) allows local guest OS privileged users to cause a denial of service (out-of-bounds read and QEMU process crash) via vectors related to copying VGA data via the cirrus_bitblt_rop_fwd_transp_ and cirrus_bitblt_rop_fwd_ functions.
Aliases
Aliases
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"https://ubuntu.com/security/CVE-2017-7718",
"https://linux.oracle.com/cve/CVE-2017-7718.html"
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},
"gsd": {
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"remediation": "unknown",
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"impact": {
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"accessVector": "LOCAL",
"authentication": "NONE",
"availabilityImpact": "PARTIAL",
"baseScore": 2.1,
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"vectorString": "AV:L/AC:L/Au:N/C:N/I:N/A:P",
"version": "2.0"
},
"exploitabilityScore": 3.9,
"impactScore": 2.9,
"obtainAllPrivilege": false,
"obtainOtherPrivilege": false,
"obtainUserPrivilege": false,
"severity": "LOW",
"userInteractionRequired": false
},
"baseMetricV3": {
"cvssV3": {
"attackComplexity": "LOW",
"attackVector": "LOCAL",
"availabilityImpact": "HIGH",
"baseScore": 5.5,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"privilegesRequired": "LOW",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
"version": "3.1"
},
"exploitabilityScore": 1.8,
"impactScore": 3.6
}
},
"lastModifiedDate": "2020-11-10T18:45Z",
"publishedDate": "2017-04-20T17:59Z"
}
}
}
MSRC_CVE-2017-7718
Vulnerability from csaf_microsoft - Published: 2017-04-02 00:00 - Updated: 2026-02-18 02:40Summary
hw/display/cirrus_vga_rop.h in QEMU (aka Quick Emulator) allows local guest OS privileged users to cause a denial of service (out-of-bounds read and QEMU process crash) via vectors related to copying VGA data via the cirrus_bitblt_rop_fwd_transp_ and cirrus_bitblt_rop_fwd_ functions.
Notes
Additional Resources: To determine the support lifecycle for your software, see the Microsoft Support Lifecycle: https://support.microsoft.com/lifecycle
Disclaimer: The information provided in the Microsoft Knowledge Base is provided \"as is\" without warranty of any kind. Microsoft disclaims all warranties, either express or implied, including the warranties of merchantability and fitness for a particular purpose. In no event shall Microsoft Corporation or its suppliers be liable for any damages whatsoever including direct, indirect, incidental, consequential, loss of business profits or special damages, even if Microsoft Corporation or its suppliers have been advised of the possibility of such damages. Some states do not allow the exclusion or limitation of liability for consequential or incidental damages so the foregoing limitation may not apply.
References
4 references
| URL | Category |
|---|---|
| https://msrc.microsoft.com/csaf/vex/2017/msrc_cve… | self |
| https://support.microsoft.com/lifecycle | external |
| https://www.first.org/cvss | external |
| https://msrc.microsoft.com/csaf/vex/2017/msrc_cve… | self |
{
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RHSA-2017:0980
Vulnerability from csaf_redhat - Published: 2017-04-18 04:56 - Updated: 2026-05-13 01:09Summary
Red Hat Security Advisory: qemu-kvm-rhev security update
Severity
Important
Notes
Topic: An update for qemu-kvm-rhev is now available for Red Hat Enterprise Linux OpenStack Platform 5.0 (Icehouse) for RHEL 7.
Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.
Details: KVM (Kernel-based Virtual Machine) is a full virtualization solution for Linux on a variety of architectures. The qemu-kvm-rhev packages provide the user-space component for running virtual machines that use KVM in environments managed by Red Hat products.
Security Fix(es):
* Quick Emulator (QEMU), built with the Cirrus CLGD 54xx VGA Emulator and the VNC display driver support, is vulnerable to a heap buffer overflow issue. The issue could occur when a VNC client attempts to update its display after a VGA operation is performed by a guest. A privileged user/process inside guest could use this flaw to crash the QEMU process resulting in DoS or, potentially, leverage it to execute arbitrary code on the host with privileges of the QEMU process. (CVE-2016-9603)
Terms of Use: This content is licensed under the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0/). If you distribute this content, or a modified version of it, you must provide attribution to Red Hat Inc. and provide a link to the original.
A heap buffer overflow flaw was found in QEMU's Cirrus CLGD 54xx VGA emulator's VNC display driver support; the issue could occur when a VNC client attempted to update its display after a VGA operation is performed by a guest. A privileged user/process inside a guest could use this flaw to crash the QEMU process or, potentially, execute arbitrary code on the host with privileges of the QEMU process.
5.5 (Medium)
Affected products
Fixed
6 products
| Product | Identifier | Version | Remediation |
|---|---|---|---|
| Unresolved product id: 7Server-RH7-RHOS-5.0:qemu-img-rhev-10:2.6.0-28.el7_3.9.x86_64 | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-RH7-RHOS-5.0:qemu-kvm-common-rhev-10:2.6.0-28.el7_3.9.x86_64 | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-RH7-RHOS-5.0:qemu-kvm-rhev-10:2.6.0-28.el7_3.9.src | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-RH7-RHOS-5.0:qemu-kvm-rhev-10:2.6.0-28.el7_3.9.x86_64 | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-RH7-RHOS-5.0:qemu-kvm-rhev-debuginfo-10:2.6.0-28.el7_3.9.x86_64 | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-RH7-RHOS-5.0:qemu-kvm-tools-rhev-10:2.6.0-28.el7_3.9.x86_64 | — |
Vendor Fix
fix
|
Threats
Impact
Important
An out-of-bounds access issue was found in QEMU's Cirrus CLGD 54xx VGA Emulator support. The vulnerability could occur while copying VGA data using bitblt functions (for example, cirrus_bitblt_rop_fwd_transp_). A privileged user inside a guest could use this flaw to crash the QEMU process, resulting in denial of service.
4.0 (Medium)
Affected products
Fixed
6 products
| Product | Identifier | Version | Remediation |
|---|---|---|---|
| Unresolved product id: 7Server-RH7-RHOS-5.0:qemu-img-rhev-10:2.6.0-28.el7_3.9.x86_64 | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-RH7-RHOS-5.0:qemu-kvm-common-rhev-10:2.6.0-28.el7_3.9.x86_64 | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-RH7-RHOS-5.0:qemu-kvm-rhev-10:2.6.0-28.el7_3.9.src | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-RH7-RHOS-5.0:qemu-kvm-rhev-10:2.6.0-28.el7_3.9.x86_64 | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-RH7-RHOS-5.0:qemu-kvm-rhev-debuginfo-10:2.6.0-28.el7_3.9.x86_64 | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-RH7-RHOS-5.0:qemu-kvm-tools-rhev-10:2.6.0-28.el7_3.9.x86_64 | — |
Vendor Fix
fix
|
Threats
Impact
Moderate
An out-of-bounds r/w access issue was found in QEMU's Cirrus CLGD 54xx VGA Emulator support. The vulnerability could occur while copying VGA data via various bitblt functions. A privileged user inside a guest could use this flaw to crash the QEMU process or, potentially, execute arbitrary code on the host with privileges of the QEMU process.
5.5 (Medium)
Affected products
Fixed
6 products
| Product | Identifier | Version | Remediation |
|---|---|---|---|
| Unresolved product id: 7Server-RH7-RHOS-5.0:qemu-img-rhev-10:2.6.0-28.el7_3.9.x86_64 | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-RH7-RHOS-5.0:qemu-kvm-common-rhev-10:2.6.0-28.el7_3.9.x86_64 | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-RH7-RHOS-5.0:qemu-kvm-rhev-10:2.6.0-28.el7_3.9.src | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-RH7-RHOS-5.0:qemu-kvm-rhev-10:2.6.0-28.el7_3.9.x86_64 | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-RH7-RHOS-5.0:qemu-kvm-rhev-debuginfo-10:2.6.0-28.el7_3.9.x86_64 | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-RH7-RHOS-5.0:qemu-kvm-tools-rhev-10:2.6.0-28.el7_3.9.x86_64 | — |
Vendor Fix
fix
|
Threats
Impact
Important
References
16 references
Acknowledgments
PSIRT Huawei Inc.
Jiangxin
Qihoo 360 Gear Team
Li Qiang
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},
{
"category": "default_component_of",
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"ids": [
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{
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},
{
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},
{
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"title": "CVSS score applicability"
}
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},
{
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"title": "CVSS score applicability"
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},
{
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],
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{
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},
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"ids": [
{
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}
],
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{
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},
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},
{
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"title": "CVSS score applicability"
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}
]
}
RHSA-2017:0981
Vulnerability from csaf_redhat - Published: 2017-04-18 04:56 - Updated: 2026-05-13 01:09Summary
Red Hat Security Advisory: qemu-kvm-rhev security update
Severity
Important
Notes
Topic: An update for qemu-kvm-rhev is now available for Red Hat Enterprise Linux OpenStack Platform 6.0 (Juno) for RHEL 7.
Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.
Details: KVM (Kernel-based Virtual Machine) is a full virtualization solution for Linux on a variety of architectures. The qemu-kvm-rhev packages provide the user-space component for running virtual machines that use KVM in environments managed by Red Hat products.
Security Fix(es):
* Quick Emulator (QEMU), built with the Cirrus CLGD 54xx VGA Emulator and the VNC display driver support, is vulnerable to a heap buffer overflow issue. The issue could occur when a VNC client attempts to update its display after a VGA operation is performed by a guest. A privileged user/process inside guest could use this flaw to crash the QEMU process resulting in DoS or, potentially, leverage it to execute arbitrary code on the host with privileges of the QEMU process. (CVE-2016-9603)
Terms of Use: This content is licensed under the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0/). If you distribute this content, or a modified version of it, you must provide attribution to Red Hat Inc. and provide a link to the original.
A heap buffer overflow flaw was found in QEMU's Cirrus CLGD 54xx VGA emulator's VNC display driver support; the issue could occur when a VNC client attempted to update its display after a VGA operation is performed by a guest. A privileged user/process inside a guest could use this flaw to crash the QEMU process or, potentially, execute arbitrary code on the host with privileges of the QEMU process.
5.5 (Medium)
Affected products
Fixed
6 products
| Product | Identifier | Version | Remediation |
|---|---|---|---|
| Unresolved product id: 7Server-RH7-RHOS-6.0:qemu-img-rhev-10:2.6.0-28.el7_3.9.x86_64 | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-RH7-RHOS-6.0:qemu-kvm-common-rhev-10:2.6.0-28.el7_3.9.x86_64 | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-RH7-RHOS-6.0:qemu-kvm-rhev-10:2.6.0-28.el7_3.9.src | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-RH7-RHOS-6.0:qemu-kvm-rhev-10:2.6.0-28.el7_3.9.x86_64 | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-RH7-RHOS-6.0:qemu-kvm-rhev-debuginfo-10:2.6.0-28.el7_3.9.x86_64 | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-RH7-RHOS-6.0:qemu-kvm-tools-rhev-10:2.6.0-28.el7_3.9.x86_64 | — |
Vendor Fix
fix
|
Threats
Impact
Important
An out-of-bounds access issue was found in QEMU's Cirrus CLGD 54xx VGA Emulator support. The vulnerability could occur while copying VGA data using bitblt functions (for example, cirrus_bitblt_rop_fwd_transp_). A privileged user inside a guest could use this flaw to crash the QEMU process, resulting in denial of service.
4.0 (Medium)
Affected products
Fixed
6 products
| Product | Identifier | Version | Remediation |
|---|---|---|---|
| Unresolved product id: 7Server-RH7-RHOS-6.0:qemu-img-rhev-10:2.6.0-28.el7_3.9.x86_64 | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-RH7-RHOS-6.0:qemu-kvm-common-rhev-10:2.6.0-28.el7_3.9.x86_64 | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-RH7-RHOS-6.0:qemu-kvm-rhev-10:2.6.0-28.el7_3.9.src | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-RH7-RHOS-6.0:qemu-kvm-rhev-10:2.6.0-28.el7_3.9.x86_64 | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-RH7-RHOS-6.0:qemu-kvm-rhev-debuginfo-10:2.6.0-28.el7_3.9.x86_64 | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-RH7-RHOS-6.0:qemu-kvm-tools-rhev-10:2.6.0-28.el7_3.9.x86_64 | — |
Vendor Fix
fix
|
Threats
Impact
Moderate
An out-of-bounds r/w access issue was found in QEMU's Cirrus CLGD 54xx VGA Emulator support. The vulnerability could occur while copying VGA data via various bitblt functions. A privileged user inside a guest could use this flaw to crash the QEMU process or, potentially, execute arbitrary code on the host with privileges of the QEMU process.
5.5 (Medium)
Affected products
Fixed
6 products
| Product | Identifier | Version | Remediation |
|---|---|---|---|
| Unresolved product id: 7Server-RH7-RHOS-6.0:qemu-img-rhev-10:2.6.0-28.el7_3.9.x86_64 | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-RH7-RHOS-6.0:qemu-kvm-common-rhev-10:2.6.0-28.el7_3.9.x86_64 | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-RH7-RHOS-6.0:qemu-kvm-rhev-10:2.6.0-28.el7_3.9.src | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-RH7-RHOS-6.0:qemu-kvm-rhev-10:2.6.0-28.el7_3.9.x86_64 | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-RH7-RHOS-6.0:qemu-kvm-rhev-debuginfo-10:2.6.0-28.el7_3.9.x86_64 | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-RH7-RHOS-6.0:qemu-kvm-tools-rhev-10:2.6.0-28.el7_3.9.x86_64 | — |
Vendor Fix
fix
|
Threats
Impact
Important
References
16 references
Acknowledgments
PSIRT Huawei Inc.
Jiangxin
Qihoo 360 Gear Team
Li Qiang
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RHSA-2017:0982
Vulnerability from csaf_redhat - Published: 2017-04-18 04:56 - Updated: 2026-05-13 01:09Summary
Red Hat Security Advisory: qemu-kvm-rhev security update
Severity
Important
Notes
Topic: An update for qemu-kvm-rhev is now available for Red Hat Enterprise Linux OpenStack Platform 7.0 (Kilo) for RHEL 7.
Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.
Details: KVM (Kernel-based Virtual Machine) is a full virtualization solution for Linux on a variety of architectures. The qemu-kvm-rhev packages provide the user-space component for running virtual machines that use KVM in environments managed by Red Hat products.
Security Fix(es):
* Quick Emulator (QEMU), built with the Cirrus CLGD 54xx VGA Emulator and the VNC display driver support, is vulnerable to a heap buffer overflow issue. The issue could occur when a VNC client attempts to update its display after a VGA operation is performed by a guest. A privileged user/process inside guest could use this flaw to crash the QEMU process resulting in DoS or, potentially, leverage it to execute arbitrary code on the host with privileges of the QEMU process. (CVE-2016-9603)
Terms of Use: This content is licensed under the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0/). If you distribute this content, or a modified version of it, you must provide attribution to Red Hat Inc. and provide a link to the original.
A heap buffer overflow flaw was found in QEMU's Cirrus CLGD 54xx VGA emulator's VNC display driver support; the issue could occur when a VNC client attempted to update its display after a VGA operation is performed by a guest. A privileged user/process inside a guest could use this flaw to crash the QEMU process or, potentially, execute arbitrary code on the host with privileges of the QEMU process.
5.5 (Medium)
Affected products
Fixed
6 products
| Product | Identifier | Version | Remediation |
|---|---|---|---|
| Unresolved product id: 7Server-RH7-RHOS-7.0:qemu-img-rhev-10:2.6.0-28.el7_3.9.x86_64 | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-RH7-RHOS-7.0:qemu-kvm-common-rhev-10:2.6.0-28.el7_3.9.x86_64 | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-RH7-RHOS-7.0:qemu-kvm-rhev-10:2.6.0-28.el7_3.9.src | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-RH7-RHOS-7.0:qemu-kvm-rhev-10:2.6.0-28.el7_3.9.x86_64 | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-RH7-RHOS-7.0:qemu-kvm-rhev-debuginfo-10:2.6.0-28.el7_3.9.x86_64 | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-RH7-RHOS-7.0:qemu-kvm-tools-rhev-10:2.6.0-28.el7_3.9.x86_64 | — |
Vendor Fix
fix
|
Threats
Impact
Important
An out-of-bounds access issue was found in QEMU's Cirrus CLGD 54xx VGA Emulator support. The vulnerability could occur while copying VGA data using bitblt functions (for example, cirrus_bitblt_rop_fwd_transp_). A privileged user inside a guest could use this flaw to crash the QEMU process, resulting in denial of service.
4.0 (Medium)
Affected products
Fixed
6 products
| Product | Identifier | Version | Remediation |
|---|---|---|---|
| Unresolved product id: 7Server-RH7-RHOS-7.0:qemu-img-rhev-10:2.6.0-28.el7_3.9.x86_64 | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-RH7-RHOS-7.0:qemu-kvm-common-rhev-10:2.6.0-28.el7_3.9.x86_64 | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-RH7-RHOS-7.0:qemu-kvm-rhev-10:2.6.0-28.el7_3.9.src | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-RH7-RHOS-7.0:qemu-kvm-rhev-10:2.6.0-28.el7_3.9.x86_64 | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-RH7-RHOS-7.0:qemu-kvm-rhev-debuginfo-10:2.6.0-28.el7_3.9.x86_64 | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-RH7-RHOS-7.0:qemu-kvm-tools-rhev-10:2.6.0-28.el7_3.9.x86_64 | — |
Vendor Fix
fix
|
Threats
Impact
Moderate
An out-of-bounds r/w access issue was found in QEMU's Cirrus CLGD 54xx VGA Emulator support. The vulnerability could occur while copying VGA data via various bitblt functions. A privileged user inside a guest could use this flaw to crash the QEMU process or, potentially, execute arbitrary code on the host with privileges of the QEMU process.
5.5 (Medium)
Affected products
Fixed
6 products
| Product | Identifier | Version | Remediation |
|---|---|---|---|
| Unresolved product id: 7Server-RH7-RHOS-7.0:qemu-img-rhev-10:2.6.0-28.el7_3.9.x86_64 | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-RH7-RHOS-7.0:qemu-kvm-common-rhev-10:2.6.0-28.el7_3.9.x86_64 | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-RH7-RHOS-7.0:qemu-kvm-rhev-10:2.6.0-28.el7_3.9.src | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-RH7-RHOS-7.0:qemu-kvm-rhev-10:2.6.0-28.el7_3.9.x86_64 | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-RH7-RHOS-7.0:qemu-kvm-rhev-debuginfo-10:2.6.0-28.el7_3.9.x86_64 | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-RH7-RHOS-7.0:qemu-kvm-tools-rhev-10:2.6.0-28.el7_3.9.x86_64 | — |
Vendor Fix
fix
|
Threats
Impact
Important
References
16 references
Acknowledgments
PSIRT Huawei Inc.
Jiangxin
Qihoo 360 Gear Team
Li Qiang
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}
RHSA-2017:0983
Vulnerability from csaf_redhat - Published: 2017-04-18 04:56 - Updated: 2026-05-13 01:09Summary
Red Hat Security Advisory: qemu-kvm-rhev security update
Severity
Important
Notes
Topic: An update for qemu-kvm-rhev is now available for Red Hat OpenStack Platform 8.0 (Liberty).
Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.
Details: KVM (Kernel-based Virtual Machine) is a full virtualization solution for Linux on a variety of architectures. The qemu-kvm-rhev packages provide the user-space component for running virtual machines that use KVM in environments managed by Red Hat products.
Security Fix(es):
* Quick Emulator (QEMU), built with the Cirrus CLGD 54xx VGA Emulator and the VNC display driver support, is vulnerable to a heap buffer overflow issue. The issue could occur when a VNC client attempts to update its display after a VGA operation is performed by a guest. A privileged user/process inside guest could use this flaw to crash the QEMU process resulting in DoS or, potentially, leverage it to execute arbitrary code on the host with privileges of the QEMU process. (CVE-2016-9603)
Terms of Use: This content is licensed under the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0/). If you distribute this content, or a modified version of it, you must provide attribution to Red Hat Inc. and provide a link to the original.
A heap buffer overflow flaw was found in QEMU's Cirrus CLGD 54xx VGA emulator's VNC display driver support; the issue could occur when a VNC client attempted to update its display after a VGA operation is performed by a guest. A privileged user/process inside a guest could use this flaw to crash the QEMU process or, potentially, execute arbitrary code on the host with privileges of the QEMU process.
5.5 (Medium)
Affected products
Fixed
6 products
| Product | Identifier | Version | Remediation |
|---|---|---|---|
| Unresolved product id: 7Server-RH7-RHOS-8.0:qemu-img-rhev-10:2.6.0-28.el7_3.9.x86_64 | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-RH7-RHOS-8.0:qemu-kvm-common-rhev-10:2.6.0-28.el7_3.9.x86_64 | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-RH7-RHOS-8.0:qemu-kvm-rhev-10:2.6.0-28.el7_3.9.src | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-RH7-RHOS-8.0:qemu-kvm-rhev-10:2.6.0-28.el7_3.9.x86_64 | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-RH7-RHOS-8.0:qemu-kvm-rhev-debuginfo-10:2.6.0-28.el7_3.9.x86_64 | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-RH7-RHOS-8.0:qemu-kvm-tools-rhev-10:2.6.0-28.el7_3.9.x86_64 | — |
Vendor Fix
fix
|
Threats
Impact
Important
An out-of-bounds access issue was found in QEMU's Cirrus CLGD 54xx VGA Emulator support. The vulnerability could occur while copying VGA data using bitblt functions (for example, cirrus_bitblt_rop_fwd_transp_). A privileged user inside a guest could use this flaw to crash the QEMU process, resulting in denial of service.
4.0 (Medium)
Affected products
Fixed
6 products
| Product | Identifier | Version | Remediation |
|---|---|---|---|
| Unresolved product id: 7Server-RH7-RHOS-8.0:qemu-img-rhev-10:2.6.0-28.el7_3.9.x86_64 | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-RH7-RHOS-8.0:qemu-kvm-common-rhev-10:2.6.0-28.el7_3.9.x86_64 | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-RH7-RHOS-8.0:qemu-kvm-rhev-10:2.6.0-28.el7_3.9.src | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-RH7-RHOS-8.0:qemu-kvm-rhev-10:2.6.0-28.el7_3.9.x86_64 | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-RH7-RHOS-8.0:qemu-kvm-rhev-debuginfo-10:2.6.0-28.el7_3.9.x86_64 | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-RH7-RHOS-8.0:qemu-kvm-tools-rhev-10:2.6.0-28.el7_3.9.x86_64 | — |
Vendor Fix
fix
|
Threats
Impact
Moderate
An out-of-bounds r/w access issue was found in QEMU's Cirrus CLGD 54xx VGA Emulator support. The vulnerability could occur while copying VGA data via various bitblt functions. A privileged user inside a guest could use this flaw to crash the QEMU process or, potentially, execute arbitrary code on the host with privileges of the QEMU process.
5.5 (Medium)
Affected products
Fixed
6 products
| Product | Identifier | Version | Remediation |
|---|---|---|---|
| Unresolved product id: 7Server-RH7-RHOS-8.0:qemu-img-rhev-10:2.6.0-28.el7_3.9.x86_64 | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-RH7-RHOS-8.0:qemu-kvm-common-rhev-10:2.6.0-28.el7_3.9.x86_64 | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-RH7-RHOS-8.0:qemu-kvm-rhev-10:2.6.0-28.el7_3.9.src | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-RH7-RHOS-8.0:qemu-kvm-rhev-10:2.6.0-28.el7_3.9.x86_64 | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-RH7-RHOS-8.0:qemu-kvm-rhev-debuginfo-10:2.6.0-28.el7_3.9.x86_64 | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-RH7-RHOS-8.0:qemu-kvm-tools-rhev-10:2.6.0-28.el7_3.9.x86_64 | — |
Vendor Fix
fix
|
Threats
Impact
Important
References
16 references
Acknowledgments
PSIRT Huawei Inc.
Jiangxin
Qihoo 360 Gear Team
Li Qiang
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"ids": [
{
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],
"notes": [
{
"category": "description",
"text": "A heap buffer overflow flaw was found in QEMU\u0027s Cirrus CLGD 54xx VGA emulator\u0027s VNC display driver support; the issue could occur when a VNC client attempted to update its display after a VGA operation is performed by a guest. A privileged user/process inside a guest could use this flaw to crash the QEMU process or, potentially, execute arbitrary code on the host with privileges of the QEMU process.",
"title": "Vulnerability description"
},
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"text": "Qemu: cirrus: heap buffer overflow via vnc connection",
"title": "Vulnerability summary"
},
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"title": "CVSS score applicability"
}
],
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"url": "https://access.redhat.com/security/cve/CVE-2016-9603"
},
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"summary": "RHBZ#1430056",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=1430056"
},
{
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"summary": "https://www.cve.org/CVERecord?id=CVE-2016-9603",
"url": "https://www.cve.org/CVERecord?id=CVE-2016-9603"
},
{
"category": "external",
"summary": "https://nvd.nist.gov/vuln/detail/CVE-2016-9603",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2016-9603"
}
],
"release_date": "2017-03-14T00:00:00+00:00",
"remediations": [
{
"category": "vendor_fix",
"date": "2017-04-18T04:56:14+00:00",
"details": "For details on how to apply this update, which includes the changes described in this advisory, refer to:\n\nhttps://access.redhat.com/articles/11258\n\nAfter installing this update, shut down all running virtual machines. Once all virtual machines have shut down, start them again for this update to take effect.",
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},
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"scores": [
{
"cvss_v2": {
"accessComplexity": "MEDIUM",
"accessVector": "ADJACENT_NETWORK",
"authentication": "SINGLE",
"availabilityImpact": "PARTIAL",
"baseScore": 4.9,
"confidentialityImpact": "PARTIAL",
"integrityImpact": "PARTIAL",
"vectorString": "AV:A/AC:M/Au:S/C:P/I:P/A:P",
"version": "2.0"
},
"cvss_v3": {
"attackComplexity": "HIGH",
"attackVector": "ADJACENT_NETWORK",
"availabilityImpact": "LOW",
"baseScore": 5.5,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "LOW",
"integrityImpact": "LOW",
"privilegesRequired": "LOW",
"scope": "CHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.0/AV:A/AC:H/PR:L/UI:N/S:C/C:L/I:L/A:L",
"version": "3.0"
},
"products": [
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"threats": [
{
"category": "impact",
"details": "Important"
}
],
"title": "Qemu: cirrus: heap buffer overflow via vnc connection"
},
{
"acknowledgments": [
{
"names": [
"Jiangxin"
],
"organization": "PSIRT Huawei Inc."
}
],
"cve": "CVE-2017-7718",
"cwe": {
"id": "CWE-125",
"name": "Out-of-bounds Read"
},
"discovery_date": "2017-03-15T00:00:00+00:00",
"ids": [
{
"system_name": "Red Hat Bugzilla ID",
"text": "1443441"
}
],
"notes": [
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RHSA-2017:0984
Vulnerability from csaf_redhat - Published: 2017-04-18 04:56 - Updated: 2026-05-13 01:09Summary
Red Hat Security Advisory: qemu-kvm-rhev security update
Severity
Important
Notes
Topic: An update for qemu-kvm-rhev is now available for Red Hat OpenStack Platform 9.0 (Mitaka).
Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.
Details: KVM (Kernel-based Virtual Machine) is a full virtualization solution for Linux on a variety of architectures. The qemu-kvm-rhev packages provide the user-space component for running virtual machines that use KVM in environments managed by Red Hat products.
Security Fix(es):
* Quick Emulator (QEMU), built with the Cirrus CLGD 54xx VGA Emulator and the VNC display driver support, is vulnerable to a heap buffer overflow issue. The issue could occur when a VNC client attempts to update its display after a VGA operation is performed by a guest. A privileged user/process inside guest could use this flaw to crash the QEMU process resulting in DoS or, potentially, leverage it to execute arbitrary code on the host with privileges of the QEMU process. (CVE-2016-9603)
Terms of Use: This content is licensed under the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0/). If you distribute this content, or a modified version of it, you must provide attribution to Red Hat Inc. and provide a link to the original.
A heap buffer overflow flaw was found in QEMU's Cirrus CLGD 54xx VGA emulator's VNC display driver support; the issue could occur when a VNC client attempted to update its display after a VGA operation is performed by a guest. A privileged user/process inside a guest could use this flaw to crash the QEMU process or, potentially, execute arbitrary code on the host with privileges of the QEMU process.
5.5 (Medium)
Affected products
Fixed
6 products
| Product | Identifier | Version | Remediation |
|---|---|---|---|
| Unresolved product id: 7Server-RH7-RHOS-9.0:qemu-img-rhev-10:2.6.0-28.el7_3.9.x86_64 | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-RH7-RHOS-9.0:qemu-kvm-common-rhev-10:2.6.0-28.el7_3.9.x86_64 | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-RH7-RHOS-9.0:qemu-kvm-rhev-10:2.6.0-28.el7_3.9.src | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-RH7-RHOS-9.0:qemu-kvm-rhev-10:2.6.0-28.el7_3.9.x86_64 | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-RH7-RHOS-9.0:qemu-kvm-rhev-debuginfo-10:2.6.0-28.el7_3.9.x86_64 | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-RH7-RHOS-9.0:qemu-kvm-tools-rhev-10:2.6.0-28.el7_3.9.x86_64 | — |
Vendor Fix
fix
|
Threats
Impact
Important
An out-of-bounds access issue was found in QEMU's Cirrus CLGD 54xx VGA Emulator support. The vulnerability could occur while copying VGA data using bitblt functions (for example, cirrus_bitblt_rop_fwd_transp_). A privileged user inside a guest could use this flaw to crash the QEMU process, resulting in denial of service.
4.0 (Medium)
Affected products
Fixed
6 products
| Product | Identifier | Version | Remediation |
|---|---|---|---|
| Unresolved product id: 7Server-RH7-RHOS-9.0:qemu-img-rhev-10:2.6.0-28.el7_3.9.x86_64 | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-RH7-RHOS-9.0:qemu-kvm-common-rhev-10:2.6.0-28.el7_3.9.x86_64 | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-RH7-RHOS-9.0:qemu-kvm-rhev-10:2.6.0-28.el7_3.9.src | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-RH7-RHOS-9.0:qemu-kvm-rhev-10:2.6.0-28.el7_3.9.x86_64 | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-RH7-RHOS-9.0:qemu-kvm-rhev-debuginfo-10:2.6.0-28.el7_3.9.x86_64 | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-RH7-RHOS-9.0:qemu-kvm-tools-rhev-10:2.6.0-28.el7_3.9.x86_64 | — |
Vendor Fix
fix
|
Threats
Impact
Moderate
An out-of-bounds r/w access issue was found in QEMU's Cirrus CLGD 54xx VGA Emulator support. The vulnerability could occur while copying VGA data via various bitblt functions. A privileged user inside a guest could use this flaw to crash the QEMU process or, potentially, execute arbitrary code on the host with privileges of the QEMU process.
5.5 (Medium)
Affected products
Fixed
6 products
| Product | Identifier | Version | Remediation |
|---|---|---|---|
| Unresolved product id: 7Server-RH7-RHOS-9.0:qemu-img-rhev-10:2.6.0-28.el7_3.9.x86_64 | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-RH7-RHOS-9.0:qemu-kvm-common-rhev-10:2.6.0-28.el7_3.9.x86_64 | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-RH7-RHOS-9.0:qemu-kvm-rhev-10:2.6.0-28.el7_3.9.src | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-RH7-RHOS-9.0:qemu-kvm-rhev-10:2.6.0-28.el7_3.9.x86_64 | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-RH7-RHOS-9.0:qemu-kvm-rhev-debuginfo-10:2.6.0-28.el7_3.9.x86_64 | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-RH7-RHOS-9.0:qemu-kvm-tools-rhev-10:2.6.0-28.el7_3.9.x86_64 | — |
Vendor Fix
fix
|
Threats
Impact
Important
References
16 references
Acknowledgments
PSIRT Huawei Inc.
Jiangxin
Qihoo 360 Gear Team
Li Qiang
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"scope": "CHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.0/AV:A/AC:H/PR:L/UI:N/S:C/C:L/I:L/A:L",
"version": "3.0"
},
"products": [
"7Server-RH7-RHOS-9.0:qemu-img-rhev-10:2.6.0-28.el7_3.9.x86_64",
"7Server-RH7-RHOS-9.0:qemu-kvm-common-rhev-10:2.6.0-28.el7_3.9.x86_64",
"7Server-RH7-RHOS-9.0:qemu-kvm-rhev-10:2.6.0-28.el7_3.9.src",
"7Server-RH7-RHOS-9.0:qemu-kvm-rhev-10:2.6.0-28.el7_3.9.x86_64",
"7Server-RH7-RHOS-9.0:qemu-kvm-rhev-debuginfo-10:2.6.0-28.el7_3.9.x86_64",
"7Server-RH7-RHOS-9.0:qemu-kvm-tools-rhev-10:2.6.0-28.el7_3.9.x86_64"
]
}
],
"threats": [
{
"category": "impact",
"details": "Important"
}
],
"title": "Qemu: display: cirrus: OOB r/w access issues in bitblt routines"
}
]
}
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Trend slope:
-
(linear fit over daily sighting counts)
Show additional events:
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Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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