7.9high
CVE-2016-9379
The pygrub boot loader emulator in Xen, when S-expression output format is requested, allows local pygrub-using guest OS administrators to…
Published 9 y ago · modified 4 mo ago · JSON
CVSS
7.9
v3.0 · NVD
CISA KEV
No
not known exploited
EPSS
0.4%
percentile 38%
Public exploits
0
none known
Summary
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.
Exploit prediction (EPSS)
0.44% probability of exploitation in the next 30 days, higher than 38% of all scored CVEs.
CVSS scores
| Assigned by | Version | Score | Vector |
|---|---|---|---|
| NVD | 3.0 | 7.9 | CVSS:3.0/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:N |
| NVD | 2.0 | 4.6 | AV:L/AC:L/Au:N/C:P/I:P/A:P |
Classification
- Weakness
- CWE-20 Improper Input Validation
References
- xenbits.xen.org /xsa/xsa198.patch · x_refsource_CONFIRM, x_transferred
- securityfocus.com /bid/94473 · vdb-entry, x_refsource_BID, x_transferred
- security.gentoo.org /glsa/201612-56 · vendor-advisory, x_refsource_GENTOO, x_transferred
- xenbits.xen.org /xsa/advisory-198.html · x_refsource_CONFIRM, x_transferred
- securitytracker.com /id/1037347 · vdb-entry, x_refsource_SECTRACK, x_transferred
- support.citrix.com /article/CTX218775 · x_refsource_CONFIRM, x_transferred
Sources
- CVE List: CVE-2016-9379
- NVD: CVE-2016-9379
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