CVE-2021-29059 ReDOS in IS-SVG
Attackers can cause denial of service in applications using the IS-SVG library by providing crafted invalid SVG strings that trigger excessive CPU usage.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2021-29059?
CVE-2021-29059 is a high-severity denial of service vulnerability in n/a, published on 21 Jun 2021. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
A vulnerability was discovered in IS-SVG version 2.1.0 to 4.2.2 and below where a Regular Expression Denial of Service (ReDOS) occurs if the application is provided and checks a crafted invalid SVG string.
Weakness: CWE-770
Which versions are affected by CVE-2021-29059?
2 open source packages ship an affected version, including is-svg. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
is-svg npm | From 2.1.0 | 4.3.0 |
is-svg npm | From 2.1.0 | 4.3.0 |
Products include Is-Svg Project Is-Svg.
How do I fix CVE-2021-29059?
Upgrade is-svg to 4.3.0 or later.
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-2021-29059 being exploited?
There is no known exploitation of CVE-2021-29059 in the wild and no public exploit code.
Other vulnerabilities in n/a
Sources
Also known as GHSA-r8j5-h5cx-65gg, ROOT-APP-NPM-CVE-2021-29059.