CVE-2020-11740

Description

An issue was discovered in xenoprof in Xen through 4.13.x, allowing guest OS users (without active profiling) to obtain sensitive information about other guests. Unprivileged guests can request to map xenoprof buffers, even if profiling has not been enabled for those guests. These buffers were not scrubbed.

Category

5.5
CVSS
Severity: Medium
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.06%
Vendor Advisory fedoraproject.org Vendor Advisory fedoraproject.org Vendor Advisory opensuse.org Vendor Advisory fedoraproject.org Vendor Advisory gentoo.org Vendor Advisory debian.org Vendor Advisory xen.org Vendor Advisory xen.org
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
https://xenbits.xen.org/xsa/advisory-313.html patch vendor advisory
http://xenbits.xen.org/xsa/advisory-313.html patch vendor advisory
http://www.openwall.com/lists/oss-security/2020/04/14/1 mailing list third party advisory patch
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/YMAW7D2MP6RE4BFI5BZWOBBWGY3VSOFN/ vendor advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/5M2XRNCHOGGTJQBZQJ7DCV6ZNAKN3LE2/ vendor advisory
http://lists.opensuse.org/opensuse-security-announce/2020-05/msg00006.html mailing list third party advisory vendor advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/NVTP4OYHCTRU3ONFJOFJQVNDFB25KLLG/ vendor advisory
https://security.gentoo.org/glsa/202005-08 third party advisory vendor advisory
https://www.debian.org/security/2020/dsa-4723 third party advisory vendor advisory

Frequently Asked Questions

What is the severity of CVE-2020-11740?
CVE-2020-11740 has been scored as a medium severity vulnerability.
How to fix CVE-2020-11740?
To fix CVE-2020-11740, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2020-11740 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2020-11740 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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