HIGH
tidy: Segfault due to out-of-bounds read in ISURLCodePoint function
Published Aug 25, 2017
7.5
HIGHCVSS 3.0
EPSS 1.15%
Description
In Tidy 5.5.31, the IsURLCodePoint function in attrs.c allows attackers to cause a denial of service (Segmentation Fault), as demonstrated by an invalid ISALNUM argument.
Affected products
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
No CVSS v3.1 score for this CVE.
7.5 HIGH NVD
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction None
Scope Unchanged
Confidentiality Impact None
Integrity Impact None
Availability Impact High
1 other source (Red Hat) ▾
3.3 LOW Red Hat
CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L
Attack Vector Local
Attack Complexity Low
Privileges Required None
User Interaction Required
Scope Unchanged
Confidentiality Impact None
Integrity Impact None
Availability Impact Low
5.0 MEDIUM NVD
AV:N/AC:L/Au:N/C:N/I:N/A:P
Access Vector Network
Access Complexity Low
Authentication None
Confidentiality Impact None
Integrity Impact None
Availability Impact Partial
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
1.15% 0.01150
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
EPSS probability 0.01150
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 | 1.15% (0.01150) | 65.72th | v5 (v2026.06.15) |
| Sep 20, 2026 | 1.15% (0.01150) | 65.47th | v5 (v2026.06.15) |
| Jul 20, 2024 | 0.10% (0.00099) | 41.47th | v3 (v2023.03.01) |
| Sep 3, 2023 | 0.10% (0.00099) | 40.24th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.07% (0.00069) | 28.01th | 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 | 0.78% (0.00777) | 21.50th | v5 (v2026.06.15) |
| Apr 14, 2021 | 0.78% (0.00777) | 0.00th | v1 |
Weaknesses (1)
References (6)
- http://www.securityfocus.com/bid/100506 vdb-entryx_refsource_BID
- https://access.redhat.com/security/cve/CVE-2017-13692 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1485857 Issue Tracking
- https://github.com/htacg/tidy-html5/issues/588 x_refsource_CONFIRMIssue TrackingPatchThird Party Advisory
- https://nvd.nist.gov/vuln/detail/CVE-2017-13692
- https://www.cve.org/CVERecord?id=CVE-2017-13692
| Link | Providers | Tags |
|---|---|---|
| http://www.securityfocus.com/bid/100506 | vdb-entryx_refsource_BID | |
| https://access.redhat.com/security/cve/CVE-2017-13692 | Vendor Advisory | |
| https://bugzilla.redhat.com/show_bug.cgi?id=1485857 | Issue Tracking | |
| https://github.com/htacg/tidy-html5/issues/588 | x_refsource_CONFIRMIssue TrackingPatchThird Party Advisory | |
| https://nvd.nist.gov/vuln/detail/CVE-2017-13692 | ||
| https://www.cve.org/CVERecord?id=CVE-2017-13692 |
Change history (0)
No recorded changes yet.
Sources
CVE.org / MITRE
Status PUBLISHED
Assigner mitre
Published Aug 25, 2017
Updated Aug 5, 2024
Reserved Aug 25, 2017
Link CVE-2017-13692
CISA Vulnrichment
Updated n/a