CVE-2021-39176 Missing Release of Memory after Effective Lifetime in detect-character-encoding
Attackers can cause denial of service by exhausting memory through repeated calls to the detect-character-encoding 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-2021-39176?
CVE-2021-39176 is a high-severity denial of service vulnerability in sonicdoe detect-character-encoding, published on 31 Aug 2021. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
detect-character-encoding is a package for detecting character encoding using ICU. In detect-character-encoding v0.3.0 and earlier, allocated memory is not released. The problem has been patched in detect-character-encoding v0.3.1.
Weakness: CWE-401
Which versions are affected by CVE-2021-39176?
2 open source packages ship an affected version, including detect-character-encoding. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
detect-character-encoding npm | All versions | 0.3.1 |
detect-character-encoding npm | All versions | 0.3.1 |
Products include Detect-Character-Encoding Project Detect-Character-Encoding.
How do I fix CVE-2021-39176?
Upgrade detect-character-encoding to 0.3.1 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-2021-39176 being exploited?
There is no known exploitation of CVE-2021-39176 in the wild and no public exploit code.
Other vulnerabilities in sonicdoe detect-character-encoding
Sources
Also known as GHSA-5rwj-j5m3-3chj.