CVE-2016-6261
published 2016-09-07CVE-2016-6261: 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…
PriorityP335high7.5CVSS 3.0
AVNACLPRNUINSUCNINAH
EPSS
3.91%
89.1th percentile
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.
Affected
12 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| canonical | ubuntu_linux | — | — |
| canonical | ubuntu_linux | — | — |
| canonical | ubuntu_linux | — | — |
| 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 |
| opensuse | leap | — | — |
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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GHSA
GHSA-hr7q-x7xm-q959: The idna_to_ascii_4i function in lib/idna
ghsa_unreviewed·2022-05-13
CVE-2016-6261 [HIGH] CWE-125 GHSA-hr7q-x7xm-q959: The idna_to_ascii_4i function in lib/idna
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.
OSV
CVE-2016-6261: The idna_to_ascii_4i function in lib/idna
osv·2016-09-07·CVSS 7.5
CVE-2016-6261 [HIGH] CVE-2016-6261: The idna_to_ascii_4i function in lib/idna
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.
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)
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: Out of bounds stack read in idna_to_ascii_4i
vendor_redhat·2016-07-20·CVSS 7.5
CVE-2016-6261 [HIGH] CWE-125 libidn: Out of bounds stack read in idna_to_ascii_4i
libidn: Out of bounds stack read in idna_to_ascii_4i
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.
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-2016-6261: libidn - The idna_to_ascii_4i function in lib/idna.c in libidn before 1.33 allows context...
vendor_debian·2016·CVSS 7.5
CVE-2016-6261 [HIGH] CVE-2016-6261: libidn - The idna_to_ascii_4i function in lib/idna.c in libidn before 1.33 allows context...
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.
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)
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-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
Bugzilla
CVE-2016-6261 libidn: Out of bounds stack read in idna_to_ascii_4i
bugzilla·2016-07-22·CVSS 7.5
CVE-2016-6261 [HIGH] CVE-2016-6261 libidn: Out of bounds stack read in idna_to_ascii_4i
CVE-2016-6261 libidn: Out of bounds stack read in idna_to_ascii_4i
An out-of-bounds stack read was found in idna_to_ascii_4i.
Upstream patches:
http://git.savannah.gnu.org/cgit/libidn.git/commit/?id=f20ce1128fb7f4d33297eee307dddaf0f92ac72d
test: http://git.savannah.gnu.org/cgit/libidn.git/commit/?id=9a1a7e15d0706634971364493fbb06e77e74726c
changelog: http://git.savannah.gnu.org/cgit/libidn.git/commit/?id=d4c533a5d975bf49090d3cd40acd230b8f79dd32
fix for introduced memory leak: http://git.savannah.gnu.org/cgit/libidn.git/commit/?id=11abd0e02c16f9e0b6944aea4ef0f2df44b42dd4
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:
http://git.savannah.gnu.org/cgit/libidn.git/commit/?id=f20ce1128fb7f4d33297eee307dddaf0f92ac72dhttp://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/2015-07/msg00016.htmlhttps://lists.gnu.org/archive/html/help-libidn/2016-07/msg00009.htmlhttp://git.savannah.gnu.org/cgit/libidn.git/commit/?id=f20ce1128fb7f4d33297eee307dddaf0f92ac72dhttp://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/2015-07/msg00016.htmlhttps://lists.gnu.org/archive/html/help-libidn/2016-07/msg00009.html
2016-09-07
Published