tidy: Segmentation fault in the prvTidyTidyMetaCharset function
Published Dec 10, 2017
7.5
HIGHCVSS 3.1
EPSS 1.38%
Description
In Tidy 5.7.0, the prvTidyTidyMetaCharset function in clean.c allows attackers to cause a denial of service (Segmentation Fault), because the currentNode variable in the "children of the head" processing feature is modified in the loop without validating the new value.
Affected products
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L
AV:N/AC:L/Au:N/C:N/I:N/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 2, 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 (10 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 2, 2026 | 1.38% (0.01377) | 71.08th | v5 (v2026.06.15) |
| Sep 20, 2026 | 1.38% (0.01377) | 70.83th | v5 (v2026.06.15) |
| Jul 20, 2024 | 0.09% (0.00088) | 38.09th | v3 (v2023.03.01) |
| Jun 10, 2024 | 0.09% (0.00088) | 37.66th | v3 (v2023.03.01) |
| Sep 3, 2023 | 0.09% (0.00087) | 35.66th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.06% (0.00061) | 23.86th | 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 | 0.52% (0.00518) | 11.68th | v5 (v2026.06.15) |
| Apr 14, 2021 | 0.52% (0.00518) | 0.00th | v1 |
References (5)
- https://access.redhat.com/security/cve/CVE-2017-17497 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1524567 Issue Tracking
- https://github.com/htacg/tidy-html5/issues/656 x_refsource_CONFIRMIssue TrackingPatchThird Party Advisory
- https://nvd.nist.gov/vuln/detail/CVE-2017-17497
- https://www.cve.org/CVERecord?id=CVE-2017-17497
| Link | Providers | Tags |
|---|---|---|
| https://access.redhat.com/security/cve/CVE-2017-17497 | Vendor Advisory | |
| https://bugzilla.redhat.com/show_bug.cgi?id=1524567 | Issue Tracking | |
| https://github.com/htacg/tidy-html5/issues/656 | x_refsource_CONFIRMIssue TrackingPatchThird Party Advisory | |
| https://nvd.nist.gov/vuln/detail/CVE-2017-17497 | ||
| https://www.cve.org/CVERecord?id=CVE-2017-17497 |
Change history (0)
No recorded changes yet.