CVE-2024-39697 phonenumber panics on parsing crafted phonenumber inputs
Attackers can cause a denial of service by sending crafted phone number strings that trigger a panic in the phonenumber library.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2024-39697?
CVE-2024-39697 is a high-severity denial of service vulnerability in whisperfish rust-phonenumber, published on 9 Jul 2024. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
phonenumber is a library for parsing, formatting and validating international phone numbers. Since 0.3.4, the phonenumber parsing code may panic due to a panic-guarded out-of-bounds access on the phonenumber string. In a typical deployment of rust-phonenumber, this may get triggered by feeding a maliciously crafted phonenumber, e.g. over the network, specifically strings of the form `+dwPAA;phone-context=AA`, where the "number" part potentially parses as a number larger than 2^56. This vulnerability is fixed in 0.3.6.
Which versions are affected by CVE-2024-39697?
3 open source packages ship an affected version, including phonenumber.
| Package | Affected | Fixed in |
|---|---|---|
phonenumber crates.io | From 0.3.3 | 0.3.6 |
phonenumber crates.io | From 0.3.4 | 0.3.6 |
phonenumber crates.io | From 0.3.4 | 0.3.6 |
How do I fix CVE-2024-39697?
Upgrade phonenumber to 0.3.6 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-2024-39697 being exploited?
There is no known exploitation of CVE-2024-39697 in the wild and no public exploit code.
Sources
Also known as GHSA-mjw4-jj88-v687, RUSTSEC-2024-0369.