CVE-2021-31779.8CriticalCWE-120

CVE-2021-3177: Python vulnerability

Python

Vendor fix available · Affected: Python · Exploitation: likely to be exploited (10% or more)

Not in CyberSIXT coverage yet: no article names this CVE. This page shows the public record.

24.0%probability of exploitation in the next 30 days

97th percentile

050100

Higher than 97% of scored CVEs

9.8CriticalCVSS 3.1

LowMediumHighCrit.

DescriptionCVE.org

Python 3.x through 3.9.1 has a buffer overflow in PyCArg_repr in _ctypes/callproc.c, which may lead to remote code execution in certain Python applications that accept floating-point numbers as untrusted input, as demonstrated by a 1e300 argument to c_double.from_param. This occurs because sprintf is used unsafely.

On the Atlas

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Open the Atlas

Exploitation: Likely to be exploited (10% or more). EPSS gives it a 10% or higher chance of exploitation in the next 30 days.
CISA KEV: Not listed
Public check: No public nuclei template
Weakness: Classic Buffer Overflow · Memory Corruption
Vendor: Python
Published: January 2021
Band: Likely to be exploited (10% or more), January 2021
Bounty reports: 1 disclosed on HackerOne

Disclosed bug bounty reports about CVE-2021-3177

The reports on HackerOne that name this CVE, with HackerOne's own outcome. Titles and metadata only.

Buffer overflow in PyCArg_repr in _ctypes/callproc.c for Python 3.x to 3.9.1Internet Bug Bounty · 2021 · high severityValid

CoverageNo articles yet

No CyberSIXT article names CVE-2021-3177 yet, so there is no coverage timeline, action brief or change log for it. Everything on this page comes from the public CVE record, CISA KEV, EPSS and the nuclei template index. Search the archive or see the CVEs in the news.

References

17 more references are in the CVE record.