CVE-2019-17343
MEDIUMCVSS 6.8/10EPSS 0.28%
Last modified
CVE-2019-17343 is a medium-severity vulnerability rated 6.8/10 on the CVSS scale. An issue was discovered in Xen through 4.11.x allowing x86 PV guest OS users to cause a denial of service or gain privileges by leveraging incorrect use of the HVM physmap concept for PV domains.. EPSS estimates a 0.28% chance of exploitation in the next 30 days.
Description
An issue was discovered in Xen through 4.11.x allowing x86 PV guest OS users to cause a denial of service or gain privileges by leveraging incorrect use of the HVM physmap concept for PV domains.
Metrics
CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Xen | Xen | <= 4.11.2 |
| Debian | Debian Linux | 9.0 |
| Debian | Debian Linux | 10.0 |
References
- http://www.openwall.com/lists/oss-security/2019/10/25/10Mailing List, Third Party Advisory
- http://xenbits.xen.org/xsa/advisory-288.htmlVendor Advisory
- https://seclists.org/bugtraq/2020/Jan/21Mailing List, Third Party Advisory
- https://www.debian.org/security/2020/dsa-4602Third Party Advisory
- https://xenbits.xen.org/xsa/advisory-288.htmlVendor Advisory
- http://www.openwall.com/lists/oss-security/2019/10/25/10Mailing List, Third Party Advisory
- http://xenbits.xen.org/xsa/advisory-288.htmlVendor Advisory
- https://seclists.org/bugtraq/2020/Jan/21Mailing List, Third Party Advisory
- https://www.debian.org/security/2020/dsa-4602Third Party Advisory
- https://xenbits.xen.org/xsa/advisory-288.htmlVendor Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2019-17343?
An issue was discovered in Xen through 4.11.x allowing x86 PV guest OS users to cause a denial of service or gain privileges by leveraging incorrect use of the HVM physmap concept for PV domains.
How severe is CVE-2019-17343?
CVE-2019-17343 has a CVSS score of 6.8/10 (MEDIUM severity). The EPSS model estimates a 0.28% probability of exploitation in the next 30 days.
How do I fix CVE-2019-17343?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.
How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
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- CVE-2019-17345An issue was discovered in Xen 4.8.x through 4.11.x allowing…6.5
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- CVE-2019-17348An issue was discovered in Xen through 4.11.x allowing x86 P…6.5
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Are you affected by CVE-2019-17343?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST