CVE-2015-5309

Severity Score

4.3

*CVSS v2

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

Integer overflow in the terminal emulator in PuTTY before 0.66 allows remote attackers to cause a denial of service (memory corruption) or possibly execute arbitrary code via an ECH (erase characters) escape sequence with a large parameter value, which triggers a buffer underflow.

Desbordamiento de entero en el emulador de terminal en PuTTY en versiones anteriores a 0.66 permite a atacantes remotos causar una denegación de servicio (corrupción de memoria) o posiblemente ejecutar código arbitrario a través de una secuencia de escape ECH (borrar caracteres) con un valor de parámetro grande, que desencadena un desbordamiento inferior de buffer.

*Credits: N/A

CVSS Scores

NISTv2 4.3

Attack Vector

Network

Attack Complexity

Medium

Authentication

None

Confidentiality

None

Integrity

None

Availability

Partial

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2015-07-01 CVE Reserved
2015-12-02 CVE Published
2024-08-06 CVE Updated
2024-08-13 EPSS Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-189: Numeric Errors

CAPEC

References (7)

URL	Tag	Source
http://www.securitytracker.com/id/1034308	Vdb Entry

URL	Date	SRC

URL	Date	SRC

URL	Date	SRC
http://lists.fedoraproject.org/pipermail/package-announce/2015-December/173021.html	2018-10-30
http://lists.fedoraproject.org/pipermail/package-announce/2015-December/173094.html	2018-10-30
http://lists.opensuse.org/opensuse-updates/2015-11/msg00099.html	2018-10-30
http://www.chiark.greenend.org.uk/~sgtatham/putty/wishlist/vuln-ech-overflow.html	2018-10-30
http://www.debian.org/security/2015/dsa-3409	2018-10-30
https://security.gentoo.org/glsa/201606-01	2018-10-30

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
Opensuse Search vendor "Opensuse"		Opensuse Search vendor "Opensuse" for product "Opensuse"				13.1 Search vendor "Opensuse" for product "Opensuse" and version "13.1"		-		Affected
Opensuse Search vendor "Opensuse"		Opensuse Search vendor "Opensuse" for product "Opensuse"				13.2 Search vendor "Opensuse" for product "Opensuse" and version "13.2"		-		Affected
Simon Tatham Search vendor "Simon Tatham"		Putty Search vendor "Simon Tatham" for product "Putty"				<= 0.65 Search vendor "Simon Tatham" for product "Putty" and version " <= 0.65"		-		Affected