CVE-2020-10870 Denial of service in n/a
A local attacker can prevent other users from starting Zim by pre-creating predictable temporary directories, causing a denial of service.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2020-10870?
CVE-2020-10870 is a medium-severity denial of service vulnerability in n/a, published on 23 Mar 2020. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
Zim through 0.72.1 creates temporary directories with predictable names. A malicious user could predict and create Zim's temporary directories and prevent other users from being able to start Zim, resulting in a denial of service.
Weakness: CWE-330
Which versions are affected by CVE-2020-10870?
It affects 1 product.
Linux distribution packages (1)
zim openSUSE:Tumbleweed | All versions | 0.73.5-1.2 |
Products include Zim-Wiki Zim.
How do I fix CVE-2020-10870?
Upgrade to a fixed version.
Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.
Is CVE-2020-10870 being exploited?
There is no known exploitation of CVE-2020-10870 in the wild and no public exploit code.
Sources
Also known as DEBIAN-CVE-2020-10870, GHSA-2jv4-vc4g-7mp7, UBUNTU-CVE-2020-10870, openSUSE-SU-2024:11541-1.