CVE-2021-41500 Incorrect Comparison in cvxopt
Attackers can cause denial of service in cvxopt by constructing fake Capsule objects due to incomplete string comparison in specific APIs.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2021-41500?
CVE-2021-41500 is a high-severity vulnerability in Fedoraproject Fedora, published on 17 Dec 2021. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
Incomplete string comparison vulnerability exits in cvxopt.org cvxop <= 1.2.6 in APIs (cvxopt.cholmod.diag, cvxopt.cholmod.getfactor, cvxopt.cholmod.solve, cvxopt.cholmod.spsolve), which allows attackers to conduct Denial of Service attacks by construct fake Capsule objects.
Weakness: CWE-697
Which versions are affected by CVE-2021-41500?
3 open source packages ship an affected version, including cvxopt. It affects 2 products.
| Package | Affected | Fixed in |
|---|---|---|
cvxopt PyPI | All versions | 1.2.7 |
cvxopt PyPI | All versions | 1.2.7 |
cvxopt PyPI | All versions | 1.2.7 |
Products include Cvxopt Project Cvxopt, Fedoraproject Fedora.
How do I fix CVE-2021-41500?
Upgrade cvxopt to 1.2.7 or later.
Is CVE-2021-41500 being exploited?
There is no known exploitation of CVE-2021-41500 in the wild and no public exploit code.
Sources
Also known as DEBIAN-CVE-2021-41500, GHSA-8rh6-h94m-vj54, PYSEC-2021-870, UBUNTU-CVE-2021-41500.