CRITICAL
libidn2: Integer overflow in puny_decode.c/decode_digit
Published Aug 31, 2017
9.8
CRITICALCVSS 3.1
EPSS 3.89%
Description
Integer overflow in the decode_digit function in puny_decode.c in Libidn2 before 2.0.4 allows remote attackers to cause a denial of service or possibly have unspecified other impact.
Affected products
No data.
Configuration 2
OR
- 8.0
- 9.0
- 10.0
No data.
Red Hat Enterprise Linux 5
libidn
Will not fix
Red Hat Enterprise Linux 6
libidn
Will not fix
Red Hat Enterprise Linux 7
libidn
Will not fix
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 5 | libidn | Will not fix | n/a |
| Red Hat Enterprise Linux 6 | libidn | Will not fix | n/a |
| Red Hat Enterprise Linux 7 | libidn | 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.
9.8 CRITICAL NVD
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction None
Scope Unchanged
Confidentiality Impact High
Integrity Impact High
Availability Impact High
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
7.5 HIGH NVD
AV:N/AC:L/Au:N/C:P/I:P/A:P
Access Vector Network
Access Complexity Low
Authentication None
Confidentiality Impact Partial
Integrity Impact Partial
Availability Impact Partial
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
3.89% 0.03890
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
EPSS probability 0.03890
Score over time
2021–2026- EPSS v1
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v1
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (17 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 3.89% (0.03890) | 89.92th | v5 (v2026.06.15) |
| Jun 15, 2026 | 3.96% (0.03965) | 89.07th | v5 (v2026.06.15) |
| Mar 30, 2025 | 0.98% (0.00977) | 74.68th | v4 (v2025.03.14) |
| Mar 29, 2025 | 3.20% (0.03200) | 78.20th | v4 (v2025.03.14) |
| Mar 17, 2025 | 0.98% (0.00977) | 75.15th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.56% (0.00557) | 78.36th | v3 (v2023.03.01) |
| Feb 8, 2024 | 0.56% (0.00557) | 76.92th | v3 (v2023.03.01) |
| May 8, 2023 | 0.56% (0.00557) | 74.25th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.46% (0.00463) | 71.54th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.21% (0.01213) | 66.61th | v2 (v2022.01.01) |
| Feb 17, 2023 | 1.21% (0.01213) | 66.22th | v2 (v2022.01.01) |
| Apr 1, 2022 | 1.21% (0.01213) | 64.21th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.21% (0.01213) | 40.54th | v2 (v2022.01.01) |
| Feb 3, 2022 | 1.62% (0.01623) | 33.90th | v1 |
| Jan 6, 2022 | 1.62% (0.01623) | 33.20th | v1 |
| Sep 1, 2021 | 1.62% (0.01623) | 73.32th | v1 |
| Apr 14, 2021 | 1.62% (0.01623) | 0.00th | v1 |
Weaknesses (1)
References (8)
- http://www.debian.org/security/2017/dsa-3988 vendor-advisoryx_refsource_DEBIANThird Party Advisory
- https://access.redhat.com/security/cve/CVE-2017-14062 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1486882 Issue Tracking
- https://gitlab.com/libidn/libidn2/blob/master/NEWS x_refsource_CONFIRMRelease NotesThird Party Advisory
- https://gitlab.com/libidn/libidn2/commit/3284eb342cd0ed1a18786e3fcdf0cdd7e76676bd x_refsource_CONFIRMPatchThird Party Advisory
- https://lists.debian.org/debian-lts-announce/2018/07/msg00040.html mailing-listx_refsource_MLISTMailing ListThird Party Advisory
- https://nvd.nist.gov/vuln/detail/CVE-2017-14062
- https://www.cve.org/CVERecord?id=CVE-2017-14062
| Link | Providers | Tags |
|---|---|---|
| http://www.debian.org/security/2017/dsa-3988 | vendor-advisoryx_refsource_DEBIANThird Party Advisory | |
| https://access.redhat.com/security/cve/CVE-2017-14062 | Vendor Advisory | |
| https://bugzilla.redhat.com/show_bug.cgi?id=1486882 | Issue Tracking | |
| https://gitlab.com/libidn/libidn2/blob/master/NEWS | x_refsource_CONFIRMRelease NotesThird Party Advisory | |
| https://gitlab.com/libidn/libidn2/commit/3284eb342cd0ed1a18786e3fcdf0cdd7e76676bd | x_refsource_CONFIRMPatchThird Party Advisory | |
| https://lists.debian.org/debian-lts-announce/2018/07/msg00040.html | mailing-listx_refsource_MLISTMailing ListThird Party Advisory | |
| https://nvd.nist.gov/vuln/detail/CVE-2017-14062 | ||
| https://www.cve.org/CVERecord?id=CVE-2017-14062 |
Change history (0)
No recorded changes yet.
Sources
CVE.org / MITRE
Status PUBLISHED
Assigner mitre
Published Aug 31, 2017
Updated Aug 5, 2024
Reserved Aug 31, 2017
Link CVE-2017-14062
CISA Vulnrichment
Updated n/a