Description
An issue (known as XSA-212) was discovered in Xen, with fixes available for 4.8.x, 4.7.x, 4.6.x, 4.5.x, and 4.4.x. The earlier XSA-29 fix introduced an insufficient check on XENMEM_exchange input, allowing the caller to drive hypervisor memory accesses outside of the guest provided input/output arrays.
Exploits (1)
exploitdb
WORKING POC
VERIFIED
by Google Security Research · textlocalmultiple
https://www.exploit-db.com/exploits/41870
References (8)
Core 8
Core References
Third Party Advisory, VDB Entry vdb-entry
x_refsource_bid
http://www.securityfocus.com/bid/97375
Patch, Vendor Advisory x_refsource_confirm
http://xenbits.xen.org/xsa/advisory-212.html
Mailing List, Third Party Advisory x_refsource_confirm
http://openwall.com/lists/oss-security/2017/04/04/3
Various Sources x_refsource_confirm
https://github.com/QubesOS/qubes-secpack/blob/master/QSBs/qsb-029-2017.txt
Third Party Advisory vendor-advisory
x_refsource_debian
http://www.debian.org/security/2017/dsa-3847
Exploit, Third Party Advisory exploit
x_refsource_exploit-db
https://www.exploit-db.com/exploits/41870/
Technical Description, Third Party Advisory x_refsource_misc
https://googleprojectzero.blogspot.com/2017/04/pandavirtualization-exploiting-xen.html
Third Party Advisory, VDB Entry vdb-entry
x_refsource_sectrack
http://www.securitytracker.com/id/1038223
Scores
CVSS v3
8.2
EPSS
0.0154
EPSS Percentile
81.4%
Attack Vector
LOCAL
CVSS:3.0/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H
Details
CWE
CWE-129
Status
published
Products (1)
xen/xen
Published
Apr 04, 2017
Tracked Since
Feb 18, 2026