Vulnerability Description
The pygrub boot loader emulator in Xen, when S-expression output format is requested, allows local pygrub-using guest OS administrators to read or delete arbitrary files on the host via string quotes and S-expressions in the bootloader configuration file.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Xen | Xen | All versions |
| Citrix | Xenserver | 6.0.2 |
Related Weaknesses (CWE)
References
- http://www.securityfocus.com/bid/94473Third Party AdvisoryVDB Entry
- http://www.securitytracker.com/id/1037347Third Party AdvisoryVDB Entry
- http://xenbits.xen.org/xsa/advisory-198.htmlPatchVendor Advisory
- http://xenbits.xen.org/xsa/xsa198.patchPatchVendor Advisory
- https://security.gentoo.org/glsa/201612-56
- https://support.citrix.com/article/CTX218775PatchThird Party Advisory
- http://www.securityfocus.com/bid/94473Third Party AdvisoryVDB Entry
- http://www.securitytracker.com/id/1037347Third Party AdvisoryVDB Entry
- http://xenbits.xen.org/xsa/advisory-198.htmlPatchVendor Advisory
- http://xenbits.xen.org/xsa/xsa198.patchPatchVendor Advisory
- https://security.gentoo.org/glsa/201612-56
- https://support.citrix.com/article/CTX218775PatchThird Party Advisory
FAQ
What is CVE-2016-9379?
CVE-2016-9379 is a vulnerability with a CVSS score of 7.9 (HIGH). The pygrub boot loader emulator in Xen, when S-expression output format is requested, allows local pygrub-using guest OS administrators to read or delete arbitrary files on the host via string quotes ...
How severe is CVE-2016-9379?
CVE-2016-9379 has been rated HIGH with a CVSS base score of 7.9/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2016-9379?
Check the references section above for vendor advisories and patch information. Affected products include: Xen Xen, Citrix Xenserver.