xen: delimiter injection vulnerabilities in pygrub (XSA-198)
Published Jan 23, 2017
8.0
HIGHCVSS 3.0
EPSS 0.44%
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.
Affected products
No data.
No data.
Red Hat Enterprise Linux 5
xen
Will not fix
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 5 | xen | Will not fix | n/a |
No package ranges for this CVE.
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
No CVSS v3.1 score for this CVE.
CVSS:3.0/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:N
1 other source (Red Hat) ▾
CVSS:3.0/AV:N/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H
AV:L/AC:L/Au:N/C:P/I:P/A:P
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
Score over time
2022–2026- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (10 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 0.44% (0.00441) | 35.96th | v5 (v2026.06.15) |
| Jun 15, 2026 | 0.44% (0.00441) | 34.89th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.10% (0.00101) | 25.60th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.06% (0.00061) | 27.95th | v3 (v2023.03.01) |
| Jun 7, 2024 | 0.06% (0.00061) | 25.86th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.06% (0.00061) | 23.86th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.03% (0.01034) | 41.69th | v2 (v2022.01.01) |
| Sep 10, 2022 | 1.03% (0.01034) | 39.91th | v2 (v2022.01.01) |
| Apr 1, 2022 | 1.03% (0.01034) | 37.91th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.03% (0.01034) | 20.32th | v2 (v2022.01.01) |
References (10)
- http://www.securityfocus.com/bid/94473 vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry
- http://www.securitytracker.com/id/1037347 vdb-entryx_refsource_SECTRACKThird Party AdvisoryVDB Entry
- http://xenbits.xen.org/xsa/advisory-198.html x_refsource_CONFIRMPatchVendor Advisory
- http://xenbits.xen.org/xsa/xsa198.patch x_refsource_CONFIRMPatchVendor Advisory
- https://access.redhat.com/security/cve/CVE-2016-9379 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1392939 Issue Tracking
- https://nvd.nist.gov/vuln/detail/CVE-2016-9379
- https://security.gentoo.org/glsa/201612-56 vendor-advisoryx_refsource_GENTOO
- https://support.citrix.com/article/CTX218775 x_refsource_CONFIRMPatchThird Party Advisory
- https://www.cve.org/CVERecord?id=CVE-2016-9379
| Link | Providers | Tags |
|---|---|---|
| http://www.securityfocus.com/bid/94473 | vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry | |
| http://www.securitytracker.com/id/1037347 | vdb-entryx_refsource_SECTRACKThird Party AdvisoryVDB Entry | |
| http://xenbits.xen.org/xsa/advisory-198.html | x_refsource_CONFIRMPatchVendor Advisory | |
| http://xenbits.xen.org/xsa/xsa198.patch | x_refsource_CONFIRMPatchVendor Advisory | |
| https://access.redhat.com/security/cve/CVE-2016-9379 | Vendor Advisory | |
| https://bugzilla.redhat.com/show_bug.cgi?id=1392939 | Issue Tracking | |
| https://nvd.nist.gov/vuln/detail/CVE-2016-9379 | ||
| https://security.gentoo.org/glsa/201612-56 | vendor-advisoryx_refsource_GENTOO | |
| https://support.citrix.com/article/CTX218775 | x_refsource_CONFIRMPatchThird Party Advisory | |
| https://www.cve.org/CVERecord?id=CVE-2016-9379 |
Change history (0)
No recorded changes yet.