CVE-2016-6261

Severity Score

7.5

*CVSS v3

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

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.

La función idna_to_ascii_4i en lib/idna.c en libidn en versiones anteriores a 1.33 permite a atacantes dependientes del contexto provocar una denegación de servicio (lectura fuera de límites y caída) a través de 64 bytes de entrada.

*Credits: N/A

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

High

Attack Vector

Network

Attack Complexity

Low

Authentication

None

Confidentiality

None

Integrity

None

Availability

Partial

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2016-07-21 CVE Reserved
2016-08-24 CVE Published
2024-08-06 CVE Updated
2024-10-07 EPSS Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-125: Out-of-bounds Read

CAPEC

References (11)

URL	Tag	Source
http://www.openwall.com/lists/oss-security/2016/07/20/6	Mailing List
http://www.openwall.com/lists/oss-security/2016/07/21/4	Mailing List
http://www.securityfocus.com/bid/92070	Third Party Advisory
https://lists.apache.org/thread.html/r58af02e294bd07f487e2c64ffc0a29b837db5600e33b6e698b9d696b%40%3Cissues.bookkeeper.apache.org%3E	Mailing List
https://lists.apache.org/thread.html/rf4c02775860db415b4955778a131c2795223f61cb8c6a450893651e4%40%3Cissues.bookkeeper.apache.org%3E	Mailing List

URL	Date	SRC

URL	Date	SRC
http://git.savannah.gnu.org/cgit/libidn.git/commit/?id=f20ce1128fb7f4d33297eee307dddaf0f92ac72d	2023-11-07

URL	Date	SRC
http://lists.opensuse.org/opensuse-updates/2016-08/msg00098.html	2023-11-07
http://www.debian.org/security/2016/dsa-3658	2023-11-07
http://www.ubuntu.com/usn/USN-3068-1	2023-11-07
https://lists.gnu.org/archive/html/help-libidn/2015-07/msg00016.html	2023-11-07
https://lists.gnu.org/archive/html/help-libidn/2016-07/msg00009.html	2023-11-07

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Opensuse Search vendor "Opensuse"		Leap Search vendor "Opensuse" for product "Leap"				42.1 Search vendor "Opensuse" for product "Leap" and version "42.1"		-		Affected
Gnu Search vendor "Gnu"		Libidn Search vendor "Gnu" for product "Libidn"				<= 1.32 Search vendor "Gnu" for product "Libidn" and version " <= 1.32"		-		Affected
Canonical Search vendor "Canonical"		Ubuntu Linux Search vendor "Canonical" for product "Ubuntu Linux"				12.04 Search vendor "Canonical" for product "Ubuntu Linux" and version "12.04"		lts		Affected
Canonical Search vendor "Canonical"		Ubuntu Linux Search vendor "Canonical" for product "Ubuntu Linux"				14.04 Search vendor "Canonical" for product "Ubuntu Linux" and version "14.04"		lts		Affected
Canonical Search vendor "Canonical"		Ubuntu Linux Search vendor "Canonical" for product "Ubuntu Linux"				16.04 Search vendor "Canonical" for product "Ubuntu Linux" and version "16.04"		lts		Affected