Vulnerability · Published Dec 17, 2021 · Assigned by mitre
CVE-2021-41496
Medium 5.5
In plain English
A medium-severity security flaw in the numpy package (Debian). There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.4% (higher than 34% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS NVD)5.5Medium
Exploit odds (30 days)0.4%top 66.0% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known
Official description
Buffer overflow in the array_from_pyobj function of fortranobject.c in NumPy < 1.19, which allows attackers to conduct a Denial of Service attacks by carefully constructing an array with negative values. NOTE: The vendor does not agree this is a vulnerability; the negative dimensions can only be created by an already privileged user (or internally)
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian:12 | numpy | no fix listed | DEBIAN-CVE-2021-41496 |
| Debian:13 | numpy | no fix listed | DEBIAN-CVE-2021-41496 |
| Debian:14 | numpy | no fix listed | DEBIAN-CVE-2021-41496 |
| PyPI | numpy | 1.19 | GHSA-f7c7-j99h-c22f |
| PyPI | numpy | 1.19.0 | PYSEC-2021-857 |
| Ubuntu:22.04:LTS | numpy | 1:1.21.5-1ubuntu22.04.1 | USN-5763-1 |
| Ubuntu:22.04:LTS | numpy | 1:1.21.5-1ubuntu22.04.1 | UBUNTU-CVE-2021-41496 |