CVE-2016-6261

The idna_to_ascii_4i function in lib/idna.c in libidn before 1.33 allows context-dependent attackers to cause a denial of service (out-of-bounds read and crash) via 64 bytes of input.

• CWE-125

• http://git.savannah.gnu.org/cgit/libidn.git/commit/?id=f20ce1128fb7f4d33297eee307dddaf0f92ac72dIssue Tracking, Patch
• http://lists.opensuse.org/opensuse-updates/2016-08/msg00098.htmlThird Party Advisory
• http://www.debian.org/security/2016/dsa-3658
• http://www.openwall.com/lists/oss-security/2016/07/20/6Mailing List, Third Party Advisory
• http://www.openwall.com/lists/oss-security/2016/07/21/4Mailing List, Third Party Advisory
• http://www.securityfocus.com/bid/92070Third Party Advisory, VDB Entry
• http://www.ubuntu.com/usn/USN-3068-1Third Party Advisory
• 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/2015-07/msg00016.htmlMailing List, Vendor Advisory
• https://lists.gnu.org/archive/html/help-libidn/2016-07/msg00009.htmlVendor Advisory
• http://git.savannah.gnu.org/cgit/libidn.git/commit/?id=f20ce1128fb7f4d33297eee307dddaf0f92ac72dIssue Tracking, Patch
• http://lists.opensuse.org/opensuse-updates/2016-08/msg00098.htmlThird Party Advisory
• http://www.debian.org/security/2016/dsa-3658
• http://www.openwall.com/lists/oss-security/2016/07/20/6Mailing List, Third Party Advisory
• http://www.openwall.com/lists/oss-security/2016/07/21/4Mailing List, Third Party Advisory
• http://www.securityfocus.com/bid/92070Third Party Advisory, VDB Entry
• http://www.ubuntu.com/usn/USN-3068-1Third Party Advisory
• 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/2015-07/msg00016.htmlMailing List, Vendor Advisory
• https://lists.gnu.org/archive/html/help-libidn/2016-07/msg00009.htmlVendor Advisory

Published

Sep 7, 2016

Last Modified

Jun 17, 2026

Status

Modified

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