Out-of-bounds Read Affecting libidn package, versions <1.23-2ubuntu0.1
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-UBUNTU1204-LIBIDN-311018
- published7 Sept 2016
- disclosed7 Sept 2016
Introduced: 7 Sep 2016
CVE-2016-6261 (opens in a new tab)How to fix?
Upgrade Ubuntu:12.04 libidn to version 1.23-2ubuntu0.1 or higher.
NVD Description
Note: Versions mentioned in the description apply only to the upstream libidn package and not the libidn package as distributed by Ubuntu.
See How to fix? for Ubuntu:12.04 relevant fixed versions and status.
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.
References
- http://people.ubuntu.com/~ubuntu-security/cve/CVE-2016-6261
- http://git.savannah.gnu.org/cgit/libidn.git/commit/?id=f20ce1128fb7f4d33297eee307dddaf0f92ac72d
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-6261
- http://www.debian.org/security/2016/dsa-3658
- https://security-tracker.debian.org/tracker/CVE-2016-6261
- 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
- http://lists.opensuse.org/opensuse-updates/2016-08/msg00098.html
- 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%40%3Cissues.bookkeeper.apache.org%3E
- https://lists.apache.org/thread.html/rf4c02775860db415b4955778a131c2795223f61cb8c6a450893651e4%40%3Cissues.bookkeeper.apache.org%3E