Vulnerability in Xen
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.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 6.8 (Medium). Vector: CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.003 (18.3th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 18th percentile — 18.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.003 · newest: 0.003 · change: 0.000
Affected products
- Xen
- Debian Linux — versions 9.0, 10.0
Weakness classification (CWE)
References
- xenbits.xen.org/xsa/advisory-288.html (Vendor Advisory)
- xenbits.xen.org/xsa/advisory-288.html (Vendor Advisory)
- www.openwall.com/lists/oss-security/2019/10/25/10 (mailing-list, Mailing List, Third Party Advisory)
- www.debian.org/security/2020/dsa-4602 (vendor-advisory, Third Party Advisory)
- seclists.org/bugtraq/2020/Jan/21 (mailing-list, Mailing List, Third Party Advisory)
Frequently asked questions
- What is CVE-2019-17343?
- CVE-2019-17343 is a medium-severity vulnerability in Xen, classified under Improper Locking. CVSS score: 6.8/10. Published 2019-10-08.
- How severe is CVE-2019-17343?
- Medium severity. CVSS v3 base score is 6.8 out of 10.