High severity7.5NVD Advisory· Published Sep 7, 2016· Updated Jun 17, 2026
CVE-2016-6263
CVE-2016-6263
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.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
9- osv-coords7 versionspkg:rpm/suse/libidn&distro=SUSE%20Linux%20Enterprise%20Desktop%2012%20SP1pkg:rpm/suse/libidn&distro=SUSE%20Linux%20Enterprise%20Server%2011%20SP4pkg:rpm/suse/libidn&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP1pkg:rpm/suse/libidn&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2011%20SP4pkg:rpm/suse/libidn&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP1pkg:rpm/suse/libidn&distro=SUSE%20Linux%20Enterprise%20Software%20Development%20Kit%2011%20SP4pkg:rpm/suse/libidn&distro=SUSE%20Linux%20Enterprise%20Software%20Development%20Kit%2012%20SP1
< 1.28-4.1+ 6 more
- (no CPE)range: < 1.28-4.1
- (no CPE)range: < 1.10-6.1
- (no CPE)range: < 1.28-4.1
- (no CPE)range: < 1.10-6.1
- (no CPE)range: < 1.28-4.1
- (no CPE)range: < 1.10-6.1
- (no CPE)range: < 1.28-4.1
Patches
Vulnerability mechanics
References
12- git.savannah.gnu.org/cgit/libidn.git/commit/nvdIssue TrackingPatch
- lists.opensuse.org/opensuse-updates/2016-08/msg00005.htmlnvdThird Party Advisory
- lists.opensuse.org/opensuse-updates/2016-08/msg00098.htmlnvdThird Party Advisory
- www.openwall.com/lists/oss-security/2016/07/20/6nvdMailing ListThird Party Advisory
- www.openwall.com/lists/oss-security/2016/07/21/4nvdMailing ListThird Party Advisory
- www.securityfocus.com/bid/92070nvdThird Party AdvisoryVDB Entry
- www.ubuntu.com/usn/USN-3068-1nvdThird Party Advisory
- lists.gnu.org/archive/html/help-libidn/2016-07/msg00009.htmlnvdVendor Advisory
- www.debian.org/security/2016/dsa-3658nvd
- lists.apache.org/thread.html/r58af02e294bd07f487e2c64ffc0a29b837db5600e33b6e698b9d696b%40%3Cissues.bookkeeper.apache.org%3Envd
- lists.apache.org/thread.html/rf4c02775860db415b4955778a131c2795223f61cb8c6a450893651e4%40%3Cissues.bookkeeper.apache.org%3Envd
- security.gentoo.org/glsa/201908-06nvd
News mentions
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