Your submission was sent successfully! Close

You have successfully unsubscribed! Close

Thank you for signing up for our newsletter!
In these regular emails you will find the latest updates about Ubuntu and upcoming events where you can meet our team.Close

CVE-2018-20349

Publication date 22 December 2018

Last updated 24 July 2024


Ubuntu priority

Cvss 3 Severity Score

6.5 · Medium

Score breakdown

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.

From the Ubuntu Security Team

It was discovered that igraph mishandled certain malformed XML. An attacker could use this vulnerability to cause a denial of service (crash).

Status

Package Ubuntu Release Status
igraph 20.10 groovy
Not affected
20.04 LTS focal
Not affected
19.10 eoan
Not affected
19.04 disco
Not affected
18.10 cosmic Ignored end of life
18.04 LTS bionic
Fixed 0.7.1-2.1+deb9u1build0.18.04.1
16.04 LTS xenial
Fixed 0.7.1-2.1+deb9u1build0.16.04.1
14.04 LTS trusty Not in release

Severity score breakdown

Parameter Value
Base score 6.5 · Medium
Attack vector Network
Attack complexity Low
Privileges required None
User interaction Required
Scope Unchanged
Confidentiality None
Integrity impact None
Availability impact High
Vector CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

References

Related Ubuntu Security Notices (USN)

    • USN-4644-1
    • igraph vulnerability
    • 27 November 2020

Other references