CVE-2016-6261
First published: Wed Sep 07 2016(Updated: )
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.
Credit: cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| SUSE Linux | =42.1 | |
| GNU libidn | <=1.32 | |
| Ubuntu | =12.04 | |
| Ubuntu | =14.04 | |
| Ubuntu | =16.04 |
Remedy
http://git.savannah.gnu.org/cgit/libidn.git/commit/?id=f20ce1128fb7f4d33297eee307dddaf0f92ac72d
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Reference Links
- http://git.savannah.gnu.org/cgit/libidn.git/commit/?id=f20ce1128fb7f4d33297eee307dddaf0f92ac72d
- 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/2015-07/msg00016.html
- https://lists.gnu.org/archive/html/help-libidn/2016-07/msg00009.html
- 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-2016-6261?
CVE-2016-6261 has been classified as a denial of service vulnerability.
How do I fix CVE-2016-6261?
To fix CVE-2016-6261, you should upgrade libidn to version 1.33 or later.
Which versions of libidn are affected by CVE-2016-6261?
CVE-2016-6261 affects libidn versions prior to 1.33.
Is CVE-2016-6261 exploitable remotely?
Yes, CVE-2016-6261 can be exploited by context-dependent attackers without needing physical access.
What operating systems are impacted by CVE-2016-6261?
CVE-2016-6261 affects OpenSUSE Leap 42.1 and various versions of Ubuntu Linux (12.04, 14.04, and 16.04).
- agent/type
- 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/softwarecombine
- agent/tags
- collector/nvd-index
- agent/software-canonical-lookup-request
- vendor/opensuse
- canonical/suse linux
- version/suse linux/42.1
- vendor/gnu
- canonical/gnu libidn
- version/gnu libidn/1.32
- vendor/canonical
- canonical/ubuntu
- version/ubuntu/12.04
- version/ubuntu/14.04
- version/ubuntu/16.04