CVE-2021-29932 Uncontrolled Resource Consumption in parse_duration
Attackers can cause denial of service via CPU and memory exhaustion by providing a duration string with a large exponent to the parse_duration crate.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2021-29932?
CVE-2021-29932 is a high-severity denial of service vulnerability in n/a, published on 1 Apr 2021. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
An issue was discovered in the parse_duration crate through 2021-03-18 for Rust. It allows attackers to cause a denial of service (CPU and memory consumption) via a duration string with a large exponent.
Weakness: CWE-770
Which versions are affected by CVE-2021-29932?
3 open source packages ship an affected version, including parse_duration. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
parse_duration crates.io | All versions to 2.1.1 | None |
parse_duration crates.io | All versions to 2.1.1 | None |
parse_duration crates.io | From 0.0.0-0 | None |
Products include Parse Duration Project Parse Duration.
How do I fix CVE-2021-29932?
No fix has been published for CVE-2021-29932 yet. Limit exposure of the affected software until one is available.
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-2021-29932 being exploited?
There is no known exploitation of CVE-2021-29932 in the wild and no public exploit code.
Sources
Also known as CAN-2021-1000007, GHSA-qpgv-g792-wh6x, RUSTSEC-2021-0041.