CVE-2016-6263
First published: Wed Sep 07 2016(Updated: )
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.
Credit: cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| GNU Libidn | <=1.32 |
Remedy
http://git.savannah.gnu.org/cgit/libidn.git/commit/?id=1fbee57ef3c72db2206dd87e4162108b2f425555
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Reference Links
- 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@%3Cissues.bookkeeper.apache.org%3E
- https://lists.apache.org/thread.html/rf4c02775860db415b4955778a131c2795223f61cb8c6a450893651e4@%3Cissues.bookkeeper.apache.org%3E
- https://lists.gnu.org/archive/html/help-libidn/2016-07/msg00009.html
- https://security.gentoo.org/glsa/201908-06
- https://lists.apache.org/thread.html/rf4c02775860db415b4955778a131c2795223f61cb8c6a450893651e4%40%3Cissues.bookkeeper.apache.org%3E
- https://lists.apache.org/thread.html/r58af02e294bd07f487e2c64ffc0a29b837db5600e33b6e698b9d696b%40%3Cissues.bookkeeper.apache.org%3E
Frequently Asked Questions
What is the severity of CVE-2016-6263?
CVE-2016-6263 is classified as a denial of service vulnerability that can lead to application crashes.
How do I fix CVE-2016-6263?
To mitigate CVE-2016-6263, you should upgrade to libidn version 1.33 or later.
Who is affected by CVE-2016-6263?
CVE-2016-6263 affects users of libidn versions prior to 1.33.
What happens if I am exploited by CVE-2016-6263?
An exploit of CVE-2016-6263 can result in an application crash due to an out-of-bounds read.
Are there any known exploits for CVE-2016-6263?
While there are no public exploits specifically for CVE-2016-6263, the vulnerability can be triggered by sending crafted UTF-8 data.
- agent/type
- agent/softwarecombine
- collector/mitre-cve
- source/MITRE
- agent/remedy
- agent/last-modified-date
- agent/weakness
- agent/references
- agent/author
- agent/severity
- agent/event
- agent/description
- agent/first-publish-date
- agent/source
- agent/tags
- collector/nvd-index
- agent/software-canonical-lookup-request
- vendor/gnu
- canonical/gnu libidn
- version/gnu libidn/1.32