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High severity · published Sep 7, 2016
CVE-2016-6263
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…
7.5
CVSS
3.9%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
None
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)3.9% · higher than 90% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
LI
Libidn · Gnu
through 1.32 · source: NVD
Affected product
LI
Libidn
Gnu
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2016-6263
CVE.org
https://www.cve.org/CVERecord?id=CVE-2016-6263
Issue Tracking
http://git.savannah.gnu.org/cgit/libidn.git/commit/?id=1fbee57ef3c72db2206dd87e4162108b2f425555
Third Party Advisory
http://lists.opensuse.org/opensuse-updates/2016-08/msg00005.html
Third Party Advisory
http://lists.opensuse.org/opensuse-updates/2016-08/msg00098.html
www.debian.org
http://www.debian.org/security/2016/dsa-3658
Mailing List
http://www.openwall.com/lists/oss-security/2016/07/20/6
Mailing List
http://www.openwall.com/lists/oss-security/2016/07/21/4
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