CVE-2021-28034 Double free in stack_dst
A double free vulnerability in the Rust stack_dst crate allows attackers to cause denial of service or potentially execute code via a panic during clone operations.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2021-28034?
CVE-2021-28034 is a critical use after free vulnerability in n/a, published on 5 Mar 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 stack_dst crate before 0.6.1 for Rust. Because of the push_inner behavior, a double free can occur upon a val.clone() panic.
Weakness: CWE-415
Which versions are affected by CVE-2021-28034?
2 open source packages ship an affected version, including stack_dst. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
stack_dst crates.io | All versions | 0.6.1 |
stack_dst crates.io | All versions | 0.6.1 |
Products include Stack Dst Project Stack Dst.
How do I fix CVE-2021-28034?
Upgrade stack_dst to 0.6.1 or later.
Upgrade to the fixed version. These bugs are found with fuzzing and sanitisers and avoided by memory-safe languages. More about Use after free.
Is CVE-2021-28034 being exploited?
There is no known exploitation of CVE-2021-28034 in the wild and no public exploit code.
Other vulnerabilities in n/a
Sources
Also known as GHSA-8mjx-h23h-w2pg.