CVE-2020-11740
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.
Does this matter?
Lower severity and a low EPSS score (0.43%). Track it; it rarely justifies an emergency change on its own.
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.
- CVSS 3.1
- 5.5 MEDIUMCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
- EPSS
- 0.43% probability · 37th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-212
- Affected
- xen/xen · debian/debian linux · fedoraproject/fedora · opensuse/leap
- Source
- cve@mitre.org
EPSS 0.4% since 26 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
References
- http://lists.opensuse.org/opensuse-security-announce/2020-05/msg00006.htmlMailing List, Third Party Advisory
- http://www.openwall.com/lists/oss-security/2020/04/14/1Mailing List, Patch, Third Party Advisory
- http://xenbits.xen.org/xsa/advisory-313.htmlPatch, 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/202005-08Third Party Advisory
- https://www.debian.org/security/2020/dsa-4723Third Party Advisory
- https://xenbits.xen.org/xsa/advisory-313.htmlPatch, Vendor Advisory
- http://lists.opensuse.org/opensuse-security-announce/2020-05/msg00006.htmlMailing List, Third Party Advisory
- http://www.openwall.com/lists/oss-security/2020/04/14/1Mailing List, Patch, Third Party Advisory
- http://xenbits.xen.org/xsa/advisory-313.htmlPatch, 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/202005-08Third Party Advisory
- https://www.debian.org/security/2020/dsa-4723Third Party Advisory
- https://xenbits.xen.org/xsa/advisory-313.htmlPatch, Vendor Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.