CVE-2024-51502 Panic Vulnerability in loona-hpack
Attackers can cause a panic in the loona-hpack library by sending untrusted input, leading to denial of service.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- Available
What is CVE-2024-51502?
CVE-2024-51502 is a medium-severity denial of service vulnerability in bearcove loona, published on 4 Nov 2024. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.
Official description
loona is an experimental, HTTP/1.1 and HTTP/2 implementation in Rust on top of io-uring. `loona-hpack` suffers from the same vulnerability as the original `hpack` as documented in issue #11. All users who try to decode untrusted input using the Decoder are vulnerable to this exploit. This issue has been addressed in release version 0.4.3. All users are advised to upgrade. There are no known workarounds for this vulnerability.
Weakness: CWE-755
Which versions are affected by CVE-2024-51502?
2 open source packages ship an affected version, including loona-hpack.
| Package | Affected | Fixed in |
|---|---|---|
loona-hpack crates.io | All versions | 0.4.3 |
loona-hpack crates.io | All versions | 0.4.3 |
How do I fix CVE-2024-51502?
Upgrade loona-hpack to 0.4.3 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-2024-51502 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2024-51502 exists.
Sources
Also known as GHSA-7vm6-qwh5-9x44.