CVE-2015-7813
low
CVSS v3
—
CVSS v2
2.1
VIR risk
2.1
Description
Xen 4.4.x, 4.5.x, and 4.6.x does not limit the number of printk console messages when reporting unimplemented hypercalls, which allows local guests to cause a denial of service via a sequence of (1) HYPERVISOR_physdev_op hypercalls, which are not properly handled in the do_physdev_op function in arch/arm/physdev.c, or (2) HYPERVISOR_hvm_op hypercalls, which are not properly handled in the do_hvm_op function in arch/arm/hvm.c.
Predictions
Exploit likelihood
20%
Patch ETA
—
Heuristic predictions, AS-IS, for prioritization only.
Mitigations
Vendor advisory: debian — https://security-tracker.debian.org/tracker/CVE-2015-7813
Vendor advisory: cve@mitre.org — http://xenbits.xen.org/xsa/advisory-146.html
OS impact
| OS | Version | Status | Fixed in |
|---|---|---|---|
| debian | bookworm | fixed | 4.6.0-1 |
| debian | bullseye | fixed | 4.6.0-1 |
| debian | forky | fixed | 4.6.0-1 |
| debian | sid | fixed | 4.6.0-1 |
| debian | trixie | fixed | 4.6.0-1 |
References
- http://lists.fedoraproject.org/pipermail/package-announce/2015-November/171082.html
- http://lists.fedoraproject.org/pipermail/package-announce/2015-November/171185.html
- http://lists.fedoraproject.org/pipermail/package-announce/2015-November/171249.html
- http://www.debian.org/security/2015/dsa-3414
- http://www.securitytracker.com/id/1034029
- http://xenbits.xen.org/xsa/advisory-146.html
- https://security.gentoo.org/glsa/201604-03
- https://security-tracker.debian.org/tracker/CVE-2015-7813
CWEs
CWE-399
Verify integrity in audit chain (admin only). AS-IS.