Vulnerability Details : CVE-2019-17342
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 a race condition that arose when XENMEM_exchange was introduced.
Vulnerability category: Denial of service
Products affected by CVE-2019-17342
- cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*
- cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*
- cpe:2.3:o:xen:xen:*:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2019-17342
0.07%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 33 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2019-17342
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
4.4
|
MEDIUM | AV:L/AC:M/Au:N/C:P/I:P/A:P |
3.4
|
6.4
|
NIST | |
|
7.0
|
HIGH | CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H |
1.0
|
5.9
|
NIST |
CWE ids for CVE-2019-17342
-
The product contains a concurrent code sequence that requires temporary, exclusive access to a shared resource, but a timing window exists in which the shared resource can be modified by another code sequence operating concurrently.Assigned by: nvd@nist.gov (Primary)
References for CVE-2019-17342
-
https://www.debian.org/security/2020/dsa-4602
Debian -- Security Information -- DSA-4602-1 xenThird Party Advisory
-
http://www.openwall.com/lists/oss-security/2019/10/25/2
oss-security - Xen Security Advisory 287 v3 (CVE-2019-17342) - x86: steal_page violates page_struct access disciplineMailing List
-
https://seclists.org/bugtraq/2020/Jan/21
Bugtraq: [SECURITY] [DSA 4602-1] xen security updateMailing List;Third Party Advisory
-
https://xenbits.xen.org/xsa/advisory-287.html
XSA-287 - Xen Security AdvisoriesVendor Advisory
-
http://xenbits.xen.org/xsa/advisory-287.html
XSA-287 - Xen Security AdvisoriesPatch;Vendor Advisory
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