CVE-2017-15595
high
CVSS v3
8.8
CVSS v2
7.2
VIR risk
8.8
Description
An issue was discovered in Xen through 4.9.x allowing x86 PV guest OS users to cause a denial of service (unbounded recursion, stack consumption, and hypervisor crash) or possibly gain privileges via crafted page-table stacking.
Predictions
Exploit likelihood
82%
Patch ETA
—
Heuristic predictions, AS-IS, for prioritization only.
Mitigations
Vendor advisory: debian — https://security-tracker.debian.org/tracker/CVE-2017-15595
Vendor advisory: suse — https://www.suse.com/security/cve/CVE-2017-15595.html
Vendor advisory: cve@mitre.org — https://xenbits.xen.org/xsa/advisory-240.html
OS impact
| OS | Version | Status | Fixed in |
|---|---|---|---|
| sles | affected | | |
| debian | bookworm | fixed | 4.8.2+xsa245-0+deb9u1 |
| debian | bullseye | fixed | 4.8.2+xsa245-0+deb9u1 |
| debian | forky | fixed | 4.8.2+xsa245-0+deb9u1 |
| debian | sid | fixed | 4.8.2+xsa245-0+deb9u1 |
| debian | trixie | fixed | 4.8.2+xsa245-0+deb9u1 |
References
- https://lists.debian.org/debian-lts-announce/2017/11/msg00027.html
- https://lists.debian.org/debian-lts-announce/2018/10/msg00021.html
- https://security.gentoo.org/glsa/201801-14
- https://support.citrix.com/article/CTX228867
- https://www.debian.org/security/2017/dsa-4050
- https://www.exploit-db.com/exploits/43014/
- https://xenbits.xen.org/xsa/advisory-240.html
- https://www.suse.com/security/cve/CVE-2017-15595.html
- https://security-tracker.debian.org/tracker/CVE-2017-15595
CWEs
CWE-400
Verify integrity in audit chain (admin only). AS-IS.