CVE-2021-27377 Use-after-free in yottadb
A use-after-free vulnerability in the yottadb Rust crate allows attackers to potentially execute arbitrary code or cause a denial of service.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2021-27377?
CVE-2021-27377 is a critical use after free vulnerability in n/a, published on 18 Feb 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 yottadb crate before 1.2.0 for Rust. For some memory-allocation patterns, ydb_subscript_next_st and ydb_subscript_prev_st have a use-after-free.
Weakness: CWE-416
Which versions are affected by CVE-2021-27377?
3 open source packages ship an affected version, including yottadb. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
yottadb crates.io | All versions | 1.2.0 |
yottadb crates.io | All versions | 1.2.0 |
yottadb crates.io | From 0.0.0-0 | 1.2.0 |
Products include Yottadb Yottadb.
How do I fix CVE-2021-27377?
Upgrade yottadb to 1.2.0 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-2021-27377 being exploited?
There is no known exploitation of CVE-2021-27377 in the wild and no public exploit code.
Sources
Also known as GHSA-9658-c26v-7qvf, RUSTSEC-2021-0022.