Medium severity · published Apr 14, 2020
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
5.5
CVSS
0.4%
EPSS
No
On KEV
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 vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Attack vector
Local
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
High
Integrity
None
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.4% · higher than 38% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
DL
Debian Linux · Debian
10.0 · source: NVD
FE
Fedora · Fedoraproject
30; 31; 32 · source: NVD
LE
Leap · Opensuse
15.1 · source: NVD
XE
Xen · Xen
3.2.0 through 4.13.0; 4.13.0; 4.13.0 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2020-11740
CVE.org
https://www.cve.org/CVERecord?id=CVE-2020-11740
Mailing List
http://lists.opensuse.org/opensuse-security-announce/2020-05/msg00006.html
Mailing List
http://www.openwall.com/lists/oss-security/2020/04/14/1
Patch
http://xenbits.xen.org/xsa/advisory-313.html
lists.fedoraproject.org
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/5M2XRNCHOGGTJQBZQJ7DCV6ZNAKN3LE2/
lists.fedoraproject.org
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/NVTP4OYHCTRU3ONFJOFJQVNDFB25KLLG/
lists.fedoraproject.org
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/YMAW7D2MP6RE4BFI5BZWOBBWGY3VSOFN/
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