CVE-2018-5388

strongSwan VPN Charon Server Buffer Overflow

Severity Score

6.5

*CVSS v3

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

In stroke_socket.c in strongSwan before 5.6.3, a missing packet length check could allow a buffer underflow, which may lead to resource exhaustion and denial of service while reading from the socket.

En stroke_socket.c en strongSwan en versiones anteriores a la 5.6.3, la ausencia de comprobaciones de la longitud de los paquetes podría permitir un desbordamiento del búfer, lo que puede conducir al agotamiento del recurso y a la denegación de servicio mientras se lee desde el socket.

*Credits: Thanks to Kevin Backhouse for reporting this vulnerability.

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

High

Attack Vector

Network

Attack Complexity

Low

Authentication

Single

Confidentiality

None

Integrity

None

Availability

Partial

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2018-01-12 CVE Reserved
2018-05-31 CVE Published
2023-12-25 EPSS Updated
2024-08-05 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-124: Buffer Underwrite ('Buffer Underflow')
CWE-787: Out-of-bounds Write

CAPEC

References (10)

URL	Tag	Source
http://packetstormsecurity.com/files/172833/strongSwan-VPN-Charon-Server-Buffer-Overflow.html
http://www.kb.cert.org/vuls/id/338343	Third Party Advisory
http://www.securityfocus.com/bid/104263	Third Party Advisory
https://git.strongswan.org/?p=strongswan.git%3Ba=commitdiff%3Bh=0acd1ab4

URL	Date	SRC

URL	Date	SRC

URL	Date	SRC
http://lists.opensuse.org/opensuse-security-announce/2019-11/msg00077.html	2023-11-07
http://lists.opensuse.org/opensuse-security-announce/2019-12/msg00001.html	2023-11-07
http://lists.opensuse.org/opensuse-security-announce/2020-03/msg00047.html	2023-11-07
https://security.gentoo.org/glsa/201811-16	2023-11-07
https://usn.ubuntu.com/3771-1	2023-11-07
https://www.debian.org/security/2018/dsa-4229	2023-11-07

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Strongswan Search vendor "Strongswan"		Strongswan Search vendor "Strongswan" for product "Strongswan"				< 5.6.3 Search vendor "Strongswan" for product "Strongswan" and version " < 5.6.3"		-		Affected
Debian Search vendor "Debian"		Debian Linux Search vendor "Debian" for product "Debian Linux"				8.0 Search vendor "Debian" for product "Debian Linux" and version "8.0"		-		Affected
Debian Search vendor "Debian"		Debian Linux Search vendor "Debian" for product "Debian Linux"				9.0 Search vendor "Debian" for product "Debian Linux" and version "9.0"		-		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
Canonical Search vendor "Canonical"		Ubuntu Linux Search vendor "Canonical" for product "Ubuntu Linux"				18.04 Search vendor "Canonical" for product "Ubuntu Linux" and version "18.04"		lts		Affected