Medium severity · published Apr 13, 2016
CVE-2015-8553
Xen allows guest OS users to obtain sensitive information from uninitialized locations in host OS kernel memory by not enabling memory and I/O decoding control bits
6.5
CVSS
0.4%
EPSS
No
On KEV
Description
Xen allows guest OS users to obtain sensitive information from uninitialized locations in host OS kernel memory by not enabling memory and I/O decoding control bits. NOTE: this vulnerability exists because of an incomplete fix for CVE-2015-0777.
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N
Attack vector
Local
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
High
Integrity
None
Availability
None
Scope
Changed
Exploitation
Is it being used?
Exploit prediction (EPSS)0.4% · higher than 32% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
EL
Enterprise Linux · Redhat
5 · source: NVD
XE
Xen · Xen
All versions, or not specified · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2015-8553
CVE.org
https://www.cve.org/CVERecord?id=CVE-2015-8553
Patch
http://xenbits.xen.org/xsa/advisory-120.html
seclists.org
https://seclists.org/bugtraq/2019/Aug/18
www.debian.org
https://www.debian.org/security/2019/dsa-4497
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