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7.5
CVSSv3

CVE-2016-6263

Published: 07/09/2016 Updated: 07/11/2023
CVSS v2 Base Score: 5 | Impact Score: 2.9 | Exploitability Score: 10
CVSS v3 Base Score: 7.5 | Impact Score: 3.6 | Exploitability Score: 3.9
VMScore: 446
Vector: AV:N/AC:L/Au:N/C:N/I:N/A:P
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Vulnerability Summary

The stringprep_utf8_nfkc_normalize function in lib/nfkc.c in libidn prior to 1.33 allows context-dependent malicious users to cause a denial of service (out-of-bounds read and crash) via crafted UTF-8 data.

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gnu libidn

Vendor Advisories

Ubuntu Security Notice: libidn vulnerabilities
Several security issues were fixed in Libidn ...
Debian Security Advisories: DSA-3658-1 libidn -- security update
Hanno Boeck discovered multiple vulnerabilities in libidn, the GNU library for Internationalized Domain Names (IDNs), allowing a remote attacker to cause a denial of service against an application using the libidn library (application crash) For the stable distribution (jessie), these problems have been fixed in version 129-1+deb8u2 For the test ...
Red Hat: CVE-2016-6263
The stringprep_utf8_nfkc_normalize function in lib/nfkcc in libidn before 133 allows context-dependent attackers to cause a denial of service (out-of-bounds read and crash) via crafted UTF-8 data ...

References

CWE-125http://www.openwall.com/lists/oss-security/2016/07/21/4http://lists.opensuse.org/opensuse-updates/2016-08/msg00005.htmlhttp://lists.opensuse.org/opensuse-updates/2016-08/msg00098.htmlhttps://lists.gnu.org/archive/html/help-libidn/2016-07/msg00009.htmlhttp://www.securityfocus.com/bid/92070http://www.openwall.com/lists/oss-security/2016/07/20/6http://www.ubuntu.com/usn/USN-3068-1http://git.savannah.gnu.org/cgit/libidn.git/commit/?id=1fbee57ef3c72db2206dd87e4162108b2f425555http://www.debian.org/security/2016/dsa-3658https://security.gentoo.org/glsa/201908-06https://lists.apache.org/thread.html/rf4c02775860db415b4955778a131c2795223f61cb8c6a450893651e4%40%3Cissues.bookkeeper.apache.org%3Ehttps://lists.apache.org/thread.html/r58af02e294bd07f487e2c64ffc0a29b837db5600e33b6e698b9d696b%40%3Cissues.bookkeeper.apache.org%3Ehttps://usn.ubuntu.com/3068-1/https://nvd.nist.gov
CVSSv3
CVSSv2
CVSSv3
VMScore
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