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CVE-2020-11741 Detail

Description

An issue was discovered in xenoprof in Xen through 4.13.x, allowing guest OS users (with active profiling) to obtain sensitive information about other guests, cause a denial of service, or possibly gain privileges. For guests for which "active" profiling was enabled by the administrator, the xenoprof code uses the standard Xen shared ring structure. Unfortunately, this code did not treat the guest as a potential adversary: it trusts the guest not to modify buffer size information or modify head / tail pointers in unexpected ways. This can crash the host (DoS). Privilege escalation cannot be ruled out.


Metrics

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CVSS 4.0 Severity and Vector Strings:

NIST CVSS score
NIST: NVD
N/A
NVD assessment not yet provided.

References to Advisories, Solutions, and Tools

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Hyperlink Resource
http://lists.opensuse.org/opensuse-security-announce/2020-05/msg00006.html Mailing List  Third Party Advisory 
http://www.openwall.com/lists/oss-security/2020/04/14/1 Mailing List  Patch  Third Party Advisory 
http://xenbits.xen.org/xsa/advisory-313.html Patch  Vendor Advisory 
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/5M2XRNCHOGGTJQBZQJ7DCV6ZNAKN3LE2/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/NVTP4OYHCTRU3ONFJOFJQVNDFB25KLLG/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/YMAW7D2MP6RE4BFI5BZWOBBWGY3VSOFN/
https://security.gentoo.org/glsa/202005-08 Third Party Advisory 
https://www.debian.org/security/2020/dsa-4723 Third Party Advisory 
https://xenbits.xen.org/xsa/advisory-313.html Patch  Vendor Advisory 

Weakness Enumeration

CWE-ID CWE Name Source
CWE-909 Missing Initialization of Resource cwe source acceptance level NIST  

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Change History

13 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2020-11741
NVD Published Date:
04/14/2020
NVD Last Modified:
11/06/2023
Source:
MITRE