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CVE-2018-20349

Date: December 21, 2018

The igraph_i_strdiff function in igraph_trie.c in igraph through 0.7.1 has an NULL pointer dereference that allows attackers to cause a denial of service (application crash) via a crafted object.

Language: C

Severity Score

6.5

Related Resources (7)

Url: https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/NCGDUNQYLSZLSGN6JJBORVFW46U3A75Y/

Url: https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/OWCGXEINKJM3JQUPVCSN4RBTRKWBTYI7/

Url: https://lists.debian.org/debian-lts-announce/2019/12/msg00038.html

Url: https://nvd.nist.gov/vuln/detail/CVE-2018-20349

Url: https://github.com/igraph/igraph/issues/1141

Url: https://security-tracker.debian.org/tracker/CVE-2018-20349

Url: https://www.mend.io/vulnerability-database/CVE-2018-20349

Severity Score

6.5

Weakness Type (CWE)

NULL Pointer Dereference

CWE-476

CVSS v3.1

Base Score:	6.5
Attack Vector (AV):	NETWORK
Attack Complexity (AC):	LOW
Privileges Required (PR):	NONE
User Interaction (UI):	REQUIRED
Scope (S):	UNCHANGED
Confidentiality (C):	NONE
Integrity (I):	NONE
Availability (A):	HIGH

CVSS v2

Base Score:	4.3
Access Vector (AV):	NETWORK
Access Complexity (AC):	MEDIUM
Authentication (AU):	NONE
Confidentiality (C):	NONE
Integrity (I):	NONE
Availability (A):	PARTIAL
Additional information:

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