CVE-2016-6263
High
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 service (out-of-bounds read and crash) via crafted UTF-8 data.
Exploit probability
3.9%
Published
September 7, 2016
Required by
Not available
Last source change
August 13, 2026
02 / AFFECTED SOFTWARE
Affected packages
03 / CONNECTIONS
Connected vulnerabilities
04 / EVIDENCE
Source records
Open Source Vulnerabilities
CVE-2016-6263
View original source
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.
05 / REFERENCES
Further evidence
- http://git.savannah.gnu.org/cgit/libidn.git/commit/?id=1fbee57ef3c72db2206dd87e4162108b2f425555
- http://lists.opensuse.org/opensuse-updates/2016-08/msg00005.html
- http://lists.opensuse.org/opensuse-updates/2016-08/msg00098.html
- http://www.debian.org/security/2016/dsa-3658
- http://www.openwall.com/lists/oss-security/2016/07/20/6
- http://www.openwall.com/lists/oss-security/2016/07/21/4
- http://www.securityfocus.com/bid/92070
- http://www.ubuntu.com/usn/USN-3068-1
- https://lists.apache.org/thread.html/r58af02e294bd07f487e2c64ffc0a29b837db5600e33b6e698b9d696b%40%3Cissues.bookkeeper.apache.org%3E
- https://lists.apache.org/thread.html/rf4c02775860db415b4955778a131c2795223f61cb8c6a450893651e4%40%3Cissues.bookkeeper.apache.org%3E
- https://lists.gnu.org/archive/html/help-libidn/2016-07/msg00009.html
- https://security.gentoo.org/glsa/201908-06