CVE-2016-6263
published 2016-09-07CVE-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…
PriorityP335high7.5CVSS 3.0
AVNACLPRNUINSUCNINAH
EPSS
3.91%
89.1th percentile
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.
Affected
8 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| debian | libidn | < libidn 1.33-1 (bookworm) | libidn 1.33-1 (bookworm) |
| gnu | libidn | <= 1.32 | — |
| gnu | libidn | >= 0 < 1.33-1 | 1.33-1 |
| gnu | libidn | >= 0 < 1.33-1 | 1.33-1 |
| gnu | libidn | >= 0 < 1.33-1 | 1.33-1 |
| gnu | libidn | >= 0 < 1.33-1 | 1.33-1 |
| gnu | libidn | >= 0 < 1.28-1ubuntu2.1 | 1.28-1ubuntu2.1 |
| gnu | libidn | >= 0 < 1.32-3ubuntu1.1 | 1.32-3ubuntu1.1 |
CVSS provenance
nvdv3.07.5HIGHCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
nvdv2.05.0MEDIUMAV:N/AC:L/Au:N/C:N/I:N/A:P
osv7.5HIGH
vendor_debian7.5HIGH
vendor_redhat7.5HIGH
vendor_ubuntu7.5HIGH
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Ubuntu
Libidn vulnerabilities
vendor_ubuntu·2016-08-24·CVSS 7.5
CVE-2015-2059 [HIGH] Libidn vulnerabilities
Title: Libidn vulnerabilities
Summary: Several security issues were fixed in Libidn.
Thijs Alkemade, Gustavo Grieco, Daniel Stenberg, and Nikos
Mavrogiannopoulos discovered that Libidn incorrectly handled invalid UTF-8
characters. A remote attacker could use this issue to cause Libidn to
crash, resulting in a denial of service, or possibly disclose sensitive
memory. This issue only applied to Ubuntu 12.04 LTS and Ubuntu 14.04 LTS.
(CVE-2015-2059)
Hanno Böck discovered that Libidn incorrectly handled certain input. A
remote attacker could possibly use this issue to cause Libidn to crash,
resulting in a denial of service. (CVE-2015-8948, CVE-2016-6262,
CVE-2016-6261, CVE-2016-6263)
Instructions: In general, a standard system update will make all the necessary changes.
Red Hat
libidn: Crash when given invalid UTF-8 data on input
vendor_redhat·2016-01-14·CVSS 7.5
CVE-2016-6263 [HIGH] CWE-20 libidn: Crash when given invalid UTF-8 data on input
libidn: Crash when given invalid UTF-8 data on input
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.
Package: libidn (Red Hat Enterprise Linux 5) - Will not fix
Package: libidn (Red Hat Enterprise Linux 6) - Will not fix
Package: libidn (Red Hat Enterprise Linux 7) - Will not fix
Debian
CVE-2016-6263: libidn - The stringprep_utf8_nfkc_normalize function in lib/nfkc.c in libidn before 1.33 ...
vendor_debian·2016·CVSS 7.5
CVE-2016-6263 [HIGH] CVE-2016-6263: libidn - The stringprep_utf8_nfkc_normalize function in lib/nfkc.c in libidn before 1.33 ...
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.
Scope: local
bookworm: resolved (fixed in 1.33-1)
bullseye: resolved (fixed in 1.33-1)
forky: resolved (fixed in 1.33-1)
sid: resolved (fixed in 1.33-1)
trixie: resolved (fixed in 1.33-1)
GHSA
GHSA-4q6w-2734-9q8x: The stringprep_utf8_nfkc_normalize function in lib/nfkc
ghsa_unreviewed·2022-05-13
CVE-2016-6263 [HIGH] CWE-125 GHSA-4q6w-2734-9q8x: The stringprep_utf8_nfkc_normalize function in lib/nfkc
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.
OSV
CVE-2016-6263: The stringprep_utf8_nfkc_normalize function in lib/nfkc
osv·2016-09-07·CVSS 7.5
CVE-2016-6263 [HIGH] CVE-2016-6263: The stringprep_utf8_nfkc_normalize function in lib/nfkc
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.
OSV
libidn vulnerabilities
osv·2016-08-24·CVSS 7.5
CVE-2015-2059 [HIGH] libidn vulnerabilities
libidn vulnerabilities
Thijs Alkemade, Gustavo Grieco, Daniel Stenberg, and Nikos
Mavrogiannopoulos discovered that Libidn incorrectly handled invalid UTF-8
characters. A remote attacker could use this issue to cause Libidn to
crash, resulting in a denial of service, or possibly disclose sensitive
memory. This issue only applied to Ubuntu 12.04 LTS and Ubuntu 14.04 LTS.
(CVE-2015-2059)
Hanno Böck discovered that Libidn incorrectly handled certain input. A
remote attacker could possibly use this issue to cause Libidn to crash,
resulting in a denial of service. (CVE-2015-8948, CVE-2016-6262,
CVE-2016-6261, CVE-2016-6263)
No detection rules found.
No public exploits indexed.
Bugzilla
CVE-2015-8948 CVE-2016-6261 CVE-2016-6262 CVE-2016-6263 mingw-libidn: various flaws [fedora-all]
bugzilla·2016-07-22·CVSS 7.5
CVE-2015-8948 [HIGH] CVE-2015-8948 CVE-2016-6261 CVE-2016-6262 CVE-2016-6263 mingw-libidn: various flaws [fedora-all]
CVE-2015-8948 CVE-2016-6261 CVE-2016-6262 CVE-2016-6263 mingw-libidn: various flaws [fedora-all]
This is an automatically created tracking bug! It was created to ensure
that one or more security vulnerabilities are fixed in affected versions
of Fedora.
For comments that are specific to the vulnerability please use bugs filed
against the "Security Response" product referenced in the "Blocks" field.
For more information see:
http://fedoraproject.org/wiki/Security/TrackingBugs
When submitting as an update, use the fedpkg template provided in the next
comment(s). This will include the bug IDs of this tracking bug as well as
the relevant top-level CVE bugs.
Please also mention the CVE IDs being fixed in the RPM changelog and the
fedpkg commit message.
NOTE: this issue affects multiple sup
Bugzilla
CVE-2016-6263 libidn: Crash when given invalid UTF-8 data on input
bugzilla·2016-07-22·CVSS 7.5
CVE-2016-6263 [HIGH] CVE-2016-6263 libidn: Crash when given invalid UTF-8 data on input
CVE-2016-6263 libidn: Crash when given invalid UTF-8 data on input
It was found that when presented with invalid UTF-8 data, stringprep_utf8_nfkc_normalize reject such input, causing application crash.
Upstream fix:
http://git.savannah.gnu.org/cgit/libidn.git/commit/?id=1fbee57ef3c72db2206dd87e4162108b2f425555
changelog: http://git.savannah.gnu.org/cgit/libidn.git/commit/?id=1d2413555dcd1fef26b80445a00a4637965a2df0
CVE assignment:
http://seclists.org/oss-sec/2016/q3/124
Discussion:
Created libidn tracking bugs for this issue:
Affects: fedora-all [bug 1359146]
---
Created mingw-libidn tracking bugs for this issue:
Affects: fedora-all [bug 1359147]
Affects: epel-7 [bug 1359148]
---
libidn-1.33-1.fc24 has been pushed to the Fedora 24 stable repository. If problems still persist,
Bugzilla
CVE-2015-8948 CVE-2016-6261 CVE-2016-6262 CVE-2016-6263 mingw-libidn: various flaws [epel-7]
bugzilla·2016-07-22·CVSS 7.5
CVE-2015-8948 [HIGH] CVE-2015-8948 CVE-2016-6261 CVE-2016-6262 CVE-2016-6263 mingw-libidn: various flaws [epel-7]
CVE-2015-8948 CVE-2016-6261 CVE-2016-6262 CVE-2016-6263 mingw-libidn: various flaws [epel-7]
This is an automatically created tracking bug! It was created to ensure
that one or more security vulnerabilities are fixed in affected versions
of Fedora EPEL.
For comments that are specific to the vulnerability please use bugs filed
against the "Security Response" product referenced in the "Blocks" field.
For more information see:
http://fedoraproject.org/wiki/Security/TrackingBugs
When submitting as an update, use the fedpkg template provided in the next
comment(s). This will include the bug IDs of this tracking bug as well as
the relevant top-level CVE bugs.
Please also mention the CVE IDs being fixed in the RPM changelog and the
fedpkg commit message.
[bug automatically created by: add-t
Bugzilla
CVE-2015-8948 CVE-2016-6261 CVE-2016-6262 CVE-2016-6263 libidn: various flaws [fedora-all]
bugzilla·2016-07-22·CVSS 7.5
CVE-2015-8948 [HIGH] CVE-2015-8948 CVE-2016-6261 CVE-2016-6262 CVE-2016-6263 libidn: various flaws [fedora-all]
CVE-2015-8948 CVE-2016-6261 CVE-2016-6262 CVE-2016-6263 libidn: various flaws [fedora-all]
This is an automatically created tracking bug! It was created to ensure
that one or more security vulnerabilities are fixed in affected versions
of Fedora.
For comments that are specific to the vulnerability please use bugs filed
against the "Security Response" product referenced in the "Blocks" field.
For more information see:
http://fedoraproject.org/wiki/Security/TrackingBugs
When submitting as an update, use the fedpkg template provided in the next
comment(s). This will include the bug IDs of this tracking bug as well as
the relevant top-level CVE bugs.
Please also mention the CVE IDs being fixed in the RPM changelog and the
fedpkg commit message.
NOTE: this issue affects multiple supported
http://git.savannah.gnu.org/cgit/libidn.git/commit/?id=1fbee57ef3c72db2206dd87e4162108b2f425555http://lists.opensuse.org/opensuse-updates/2016-08/msg00005.htmlhttp://lists.opensuse.org/opensuse-updates/2016-08/msg00098.htmlhttp://www.debian.org/security/2016/dsa-3658http://www.openwall.com/lists/oss-security/2016/07/20/6http://www.openwall.com/lists/oss-security/2016/07/21/4http://www.securityfocus.com/bid/92070http://www.ubuntu.com/usn/USN-3068-1https://lists.apache.org/thread.html/r58af02e294bd07f487e2c64ffc0a29b837db5600e33b6e698b9d696b%40%3Cissues.bookkeeper.apache.org%3Ehttps://lists.apache.org/thread.html/rf4c02775860db415b4955778a131c2795223f61cb8c6a450893651e4%40%3Cissues.bookkeeper.apache.org%3Ehttps://lists.gnu.org/archive/html/help-libidn/2016-07/msg00009.htmlhttps://security.gentoo.org/glsa/201908-06http://git.savannah.gnu.org/cgit/libidn.git/commit/?id=1fbee57ef3c72db2206dd87e4162108b2f425555http://lists.opensuse.org/opensuse-updates/2016-08/msg00005.htmlhttp://lists.opensuse.org/opensuse-updates/2016-08/msg00098.htmlhttp://www.debian.org/security/2016/dsa-3658http://www.openwall.com/lists/oss-security/2016/07/20/6http://www.openwall.com/lists/oss-security/2016/07/21/4http://www.securityfocus.com/bid/92070http://www.ubuntu.com/usn/USN-3068-1https://lists.apache.org/thread.html/r58af02e294bd07f487e2c64ffc0a29b837db5600e33b6e698b9d696b%40%3Cissues.bookkeeper.apache.org%3Ehttps://lists.apache.org/thread.html/rf4c02775860db415b4955778a131c2795223f61cb8c6a450893651e4%40%3Cissues.bookkeeper.apache.org%3Ehttps://lists.gnu.org/archive/html/help-libidn/2016-07/msg00009.htmlhttps://security.gentoo.org/glsa/201908-06
2016-09-07
Published