Vulnerability · Published Jul 22, 2020 · Assigned by mitre
CVE-2020-15904
High 7.8
In plain English
A high-severity security flaw in the bsdiff4 package (PyPI). There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 1.1% (higher than 64% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS NVD)7.8High
Exploit odds (30 days)1.1%top 35.6% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known
Official description
A buffer overflow in the patching routine of bsdiff4 before 1.2.0 allows an attacker to write to heap memory (beyond allocated bounds) via a crafted patch file.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| PyPI | bsdiff4 | 1.2.0 | GHSA-f8m3-jpxr-hm5x |
| PyPI | bsdiff4 | 1.2.0 | PYSEC-2020-30 |