edk2: Privilege escalation via processing of malformed files in TianoCompress.c
Published Oct 28, 2019
7.8
HIGHCVSS 3.1
EPSS 0.39%
Description
Bounds checking in Tianocompress before November 7, 2017 may allow an authenticated user to potentially enable an escalation of privilege via local access.
Affected products
- Vendor n/a Product Tianocore Defaultn/a
- Version before November 7, 2017StatusaffectedConstraints-
- Version
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | ||||||
|---|---|---|---|---|---|---|---|---|---|
| n/a | Tianocore | n/a |
|
No data.
Red Hat Enterprise Linux 7
ovmf-0:20180508-6.gitee3198e672e2.el7
Fixed · RHSA-2019:2125
Red Hat Enterprise Linux 8
edk2
Not affected
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 7 | ovmf-0:20180508-6.gitee3198e672e2.el7 | Fixed | RHSA-2019:2125 |
| Red Hat Enterprise Linux 8 | edk2 | Not affected | n/a |
No package ranges for this CVE.
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CVSS:3.0/AV:L/AC:L/PR:H/UI:N/S:U/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
2021–2026- EPSS v1
- EPSS v5
- EPSS v2
- EPSS v3
Percentile over time
- EPSS v1
- EPSS v5
- EPSS v2
- EPSS v3
Table of values (9 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 0.39% (0.00392) | 30.93th | v5 (v2026.06.15) |
| Sep 20, 2026 | 0.39% (0.00392) | 33.23th | v5 (v2026.06.15) |
| Jul 20, 2024 | 0.04% (0.00044) | 12.95th | v3 (v2023.03.01) |
| May 25, 2024 | 0.04% (0.00044) | 12.27th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.04% (0.00044) | 10.26th | v3 (v2023.03.01) |
| Mar 6, 2023 | 0.89% (0.00885) | 27.89th | v2 (v2022.01.01) |
| Feb 4, 2022 | 0.89% (0.00885) | 10.50th | v2 (v2022.01.01) |
| Feb 3, 2022 | 0.42% (0.00416) | 10.04th | v5 (v2026.06.15) |
| Apr 14, 2021 | 0.42% (0.00416) | 0.00th | v1 |
References (6)
- https://access.redhat.com/security/cve/CVE-2017-5731 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1641442 Issue Tracking
- https://bugzilla.tianocore.org/show_bug.cgi?id=686 x_refsource_MISCIssue TrackingPatchVendor Advisory
- https://edk2-docs.gitbooks.io/security-advisory/content/edk-ii-tianocompress-bounds-checking-issues.html
- https://nvd.nist.gov/vuln/detail/CVE-2017-5731
- https://www.cve.org/CVERecord?id=CVE-2017-5731
| Link | Providers | Tags |
|---|---|---|
| https://access.redhat.com/security/cve/CVE-2017-5731 | Vendor Advisory | |
| https://bugzilla.redhat.com/show_bug.cgi?id=1641442 | Issue Tracking | |
| https://bugzilla.tianocore.org/show_bug.cgi?id=686 | x_refsource_MISCIssue TrackingPatchVendor Advisory | |
| https://edk2-docs.gitbooks.io/security-advisory/content/edk-ii-tianocompress-bounds-checking-issues.html | ||
| https://nvd.nist.gov/vuln/detail/CVE-2017-5731 | ||
| https://www.cve.org/CVERecord?id=CVE-2017-5731 |
Change history (0)
No recorded changes yet.