CVE-2017-7228 EXPLOIT
8.2
HIGH · CVSS 3.0 · EPSS 1.6% (pctl 75)
Patch early
A public exploit exists.
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.
Scoring
| CVSS | 8.2 (HIGH, v3.0) |
|---|---|
| Vector | CVSS:3.0/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H |
| EPSS | 1.57% — more likely to be exploited than 75% of all CVEs |
| Weakness | CWE-129 |
| On CISA KEV | no |
| Public exploit | yes |
| Published | 2017-04-04 |
| Last modified | 2026-06-17 |
Affected (1)
| Vendor | Product |
|---|---|
| xen | xen |
Public exploits
| Source | Title | Date |
|---|---|---|
| exploit-db | Xen - Broken Check in 'memory_exchange()' Permits PV Guest Breakout | 2017-04-11 |
References
- http://openwall.com/lists/oss-security/2017/04/04/3
- http://www.debian.org/security/2017/dsa-3847
- http://www.securityfocus.com/bid/97375
- http://www.securitytracker.com/id/1038223
- http://xenbits.xen.org/xsa/advisory-212.html
- https://github.com/QubesOS/qubes-secpack/blob/master/QSBs/qsb-029-2017.txt
- https://googleprojectzero.blogspot.com/2017/04/pandavirtualization-exploiting-xen.html
- https://www.exploit-db.com/exploits/41870/
- http://openwall.com/lists/oss-security/2017/04/04/3
- http://www.debian.org/security/2017/dsa-3847
- http://www.securityfocus.com/bid/97375
- http://www.securitytracker.com/id/1038223
- http://xenbits.xen.org/xsa/advisory-212.html
- https://github.com/QubesOS/qubes-secpack/blob/master/QSBs/qsb-029-2017.txt
- https://googleprojectzero.blogspot.com/2017/04/pandavirtualization-exploiting-xen.html
- https://www.exploit-db.com/exploits/41870/
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