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CVE-2016-6263
The stringprep_utf8_nfkc_normalize function in lib/nfkc.c in libidn before 1.33 allows context-dependent attackers to cause a denial of…
High7.5EPSS 3.9%
- Published
- Updated
- Reserved
- Assigned by
- mitre
Description
The stringprep_utf8_nfkc_normalize function in lib/nfkc.c in libidn before 1.33 allows context-dependent attackers to cause a denial of service (out-of-bounds read and crash) via crafted UTF-8 data.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Modified | 3.0 | High7.5 | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
- EPSS (exploitation in 30 days)
- 3.9% · top 9.8% of all CVEs (2 Nov 2026)
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The list uses the assigner's score when there is one, then CISA's, then NVD's: High 7.5.
Weakness
Affected products
n/a
- affected n/a
References (12)
- [oss-security] 20160721 Re: CVE request: multiple issues fixed in GNU libidn 1.33 (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- openSUSE-SU-2016:2135 (opens in a new tab)vendor-advisoryx_refsource_SUSEx_transferred
- [oss-security] 20160720 CVE request: multiple issues fixed in GNU libidn 1.33 (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- openSUSE-SU-2016:1924 (opens in a new tab)vendor-advisoryx_refsource_SUSEx_transferred
- 92070 (opens in a new tab)vdb-entryx_refsource_BIDx_transferred
- DSA-3658 (opens in a new tab)vendor-advisoryx_refsource_DEBIANx_transferred
- [help-libidn] 20160720 Libidn 1.33 released (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- http://git.savannah.gnu.org/cgit/libidn.git/commit/?id=1fbee57ef3c72db2206dd87e4162108b2f425555 (opens in a new tab)x_refsource_CONFIRMx_transferred
- USN-3068-1 (opens in a new tab)vendor-advisoryx_refsource_UBUNTUx_transferred
- GLSA-201908-06 (opens in a new tab)vendor-advisoryx_refsource_GENTOOx_transferred
- [bookkeeper-issues] 20210628 [GitHub] [bookkeeper] padma81 opened a new issue #2746: Security Vulnerabilities in CentOS 7 image, Upgrade image to CentOS 8 (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- [bookkeeper-issues] 20210629 [GitHub] [bookkeeper] padma81 opened a new issue #2746: Security Vulnerabilities in CentOS 7 image, Upgrade image to CentOS 8 (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Record last updated .