CVE-2018-20349 Null dereference in n/a
Attackers can cause a denial of service via application crash in the igraph library by exploiting a NULL pointer dereference in the string difference function.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- Available
What is CVE-2018-20349?
CVE-2018-20349 is a medium-severity vulnerability in n/a, published on 22 Dec 2018. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Official description
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.
Weakness: CWE-476
Which versions are affected by CVE-2018-20349?
1 open source package ship an affected version, including igraph. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
igraph CRAN | From 0.7.1 | 1.2.2-2 |
Products include Igraph Igraph.
How do I fix CVE-2018-20349?
Upgrade igraph to 1.2.2-2 or later.
Is CVE-2018-20349 being exploited?
There is no known exploitation of CVE-2018-20349 in the wild and no public exploit code.
Sources
Also known as DEBIAN-CVE-2018-20349, DLA-2055-1, GHSA-qgqh-phj7-7fm4, MGASA-2020-0013, RSEC-2023-4, UBUNTU-CVE-2018-20349 and 1 more.