CVE-2019-19579
Quick assessment
Affected
n/a n/a
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.
Xen是英国剑桥大学的一款开源的虚拟机监视器产品。该产品能够使不同和不兼容的操作系统运行在同一台计算机上，并支持在运行时进行迁移，保证正常运行并且避免宕机。 Xen 4.12.x及之前版本中存在安全漏洞。攻击者可借助DMA利用该漏洞获取主机操作系统权限。
Possible ATT&CK Techniques 1 AI
T1055 · Process Injection
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I. Basic Information for CVE-2019-19579
Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
An issue was discovered in Xen through 4.12.x allowing attackers to gain host OS privileges via DMA in a situation where an untrusted domain has access to a physical device (and assignable-add is not used), because of an incomplete fix for CVE-2019-18424. XSA-302 relies on the use of libxl's "assignable-add" feature to prepare devices to be assigned to untrusted guests. Unfortunately, this is not considered a strictly required step for device assignment. The PCI passthrough documentation on the wiki describes alternate ways of preparing devices for assignment, and libvirt uses its own ways as well. Hosts where these "alternate" methods are used will still leave the system in a vulnerable state after the device comes back from a guest. An untrusted domain with access to a physical device can DMA into host memory, leading to privilege escalation. Only systems where guests are given direct access to physical devices capable of DMA (PCI pass-through) are vulnerable. Systems which do not use PCI pass-through are not vulnerable.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
Vulnerability Title
Xen 输入验证错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Xen是英国剑桥大学的一款开源的虚拟机监视器产品。该产品能够使不同和不兼容的操作系统运行在同一台计算机上，并支持在运行时进行迁移，保证正常运行并且避免宕机。 Xen 4.12.x及之前版本中存在安全漏洞。攻击者可借助DMA利用该漏洞获取主机操作系统权限。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| - | n/a | n/a | - |
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II. Public POCs for CVE-2019-19579
| # | POC Description | Source Link | Shenlong Link |
|---|
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Vendor Advisories for CVE-2019-19579 (1)
Mailing List Discussions for CVE-2019-19579 (5)
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https://www.openwall.com/lists/oss-security/2019/11/26/2 x_refsource_MISC
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http://lists.opensuse.org/opensuse-security-announce/2020-01/msg00011.html vendor-advisory x_refsource_SUSE
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https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/RJYT5FNGM7JSVHHW6B22TSAATBOAPFPD/ vendor-advisory x_refsource_FEDORA
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oss-security - Xen Security Advisory 306 v3 (CVE-2019-19579) - Device quarantine for alternate pci assignment methods mailing-list x_refsource_MLIST
Other References for CVE-2019-19579 (2)
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http://xenbits.xen.org/xsa/advisory-306.html x_refsource_CONFIRM
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https://xenbits.xen.org/xsa/advisory-306.html x_refsource_MISC
Same Patch Batch · n/a · 2019-12-04 · 26 CVEs total
| CVE-2019-19364 | Sony Catalyst Production Suite和Catalyst Browse 代码问题漏洞 | |
| CVE-2019-18850 | TrevorC2 信息泄露漏洞 | |
| CVE-2019-14909 | Red Hat Keycloak 授权问题漏洞 | |
| CVE-2019-15638 | COPA-DATA zenone32 zenon Editor 代码问题漏洞 | |
| CVE-2019-19555 | Xfig fig2dev 缓冲区错误漏洞 | |
| CVE-2018-0728 | Helpdesk 访问控制错误漏洞 | |
| CVE-2018-0729 | QNAP Systems QNAP Music Station 注入漏洞 | |
| CVE-2018-0730 | QNAP Systems QNAP QTS File Station 注入漏洞 | |
| CVE-2019-7201 | QNAP Systems QNAP NetBak Replicator 代码问题漏洞 | |
| CVE-2019-7197 | QNAP Systems QNAP QTS 跨站脚本漏洞 | |
| CVE-2019-18346 | DAViCal 跨站请求伪造漏洞 | |
| CVE-2019-18347 | DAViCal 跨站脚本漏洞 | |
| CVE-2019-19576 | verot.net class.upload 代码问题漏洞 | |
| CVE-2019-19587 | WSO2 Enterprise Integrator 跨站脚本漏洞 | |
| CVE-2019-19229 | Fronius Solar Inverter 路径遍历漏洞 | |
| CVE-2019-19228 | Fronius Solar Inverter 安全漏洞 | |
| CVE-2019-19133 | WordPress CSS Hero 跨站脚本漏洞 | |
| CVE-2019-16753 | Decentralized Anonymous Payment System 数据伪造问题漏洞 | |
| CVE-2019-16752 | Decentralized Anonymous Payment System 跨站请求伪造漏洞 | |
| CVE-2019-11216 | BMC Smart Reporting 代码问题漏洞 |
Showing top 20 of 26 CVEs. View all on vendor page → →
IV. Related Vulnerabilities
V. Comments for CVE-2019-19579
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