CVE-2018-7418

wireshark: SIGCOMP dissector crash in packet-sigcomp.c

Severity Score

7.5

*CVSS v3

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

In Wireshark 2.2.0 to 2.2.12 and 2.4.0 to 2.4.4, the SIGCOMP dissector could crash. This was addressed in epan/dissectors/packet-sigcomp.c by correcting the extraction of the length value.

En Wireshark 2.2.0 a 2.2.12 y 2.4.0 a 2.4.4, el disector SIGCOMP podría cerrarse inesperadamente. Esto se trató en epan/dissectors/packet-sigcomp.c corrigiendo la extracción del valor de longitud.

A denial of service flaw was found in the SIGCOMP dissector in Wireshark. A remote network attacker could potentially use this flaw to crash Wireshark by tricking it into processing a crafted packet.

The wireshark packages contain a network protocol analyzer used to capture and browse the traffic running on a computer network. Issues addressed include crash and out of bounds read vulnerabilities.

*Credits: N/A

CVSS Scores

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

High

Attack Vector

Local

Attack Complexity

Low

Privileges Required

None

User Interaction

Required

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

Low

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

2018-02-22 CVE Reserved
2018-02-23 CVE Published
2024-08-05 CVE Updated
2025-03-30 EPSS Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-400: Uncontrolled Resource Consumption

CAPEC

References (8)

URL	Tag	Source
http://www.securityfocus.com/bid/103157	Third Party Advisory
https://code.wireshark.org/review/gitweb?p=wireshark.git%3Ba=commit%3Bh=29d920b8309905dda11ad397596fe8aafc9b4bf7	X_refsource_confirm
https://lists.debian.org/debian-lts-announce/2018/04/msg00018.html	Mailing List
https://lists.debian.org/debian-lts-announce/2019/01/msg00010.html	Mailing List

URL	Date	SRC

URL	Date	SRC

URL	Date	SRC
https://bugs.wireshark.org/bugzilla/show_bug.cgi?id=14410	2023-11-07
https://www.wireshark.org/security/wnpa-sec-2018-13.html	2023-11-07
https://access.redhat.com/security/cve/CVE-2018-7418	2020-03-31
https://bugzilla.redhat.com/show_bug.cgi?id=1549305	2020-03-31

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Wireshark Search vendor "Wireshark"		Wireshark Search vendor "Wireshark" for product "Wireshark"				>= 2.2.0 <= 2.2.12 Search vendor "Wireshark" for product "Wireshark" and version " >= 2.2.0 <= 2.2.12"		-		Affected
Wireshark Search vendor "Wireshark"		Wireshark Search vendor "Wireshark" for product "Wireshark"				>= 2.4.0 <= 2.4.4 Search vendor "Wireshark" for product "Wireshark" and version " >= 2.4.0 <= 2.4.4"		-		Affected
Debian Search vendor "Debian"		Debian Linux Search vendor "Debian" for product "Debian Linux"				7.0 Search vendor "Debian" for product "Debian Linux" and version "7.0"		-		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