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Fencer Vulns
medium 6.8

HSEC-2024-0006 json

fromIntegral: conversion error

published 2025-11-14 11 mo ago modified 2025-11-14 11 mo ago

cvss
6.8
version 3.1, OSV
cisa kev
Not listed
not in CISA's catalog
epss
—
no score, EPSS covers CVEs only
public exploits
0
none known

Summary

# `fromIntegral`: conversion error

`fromIntegral` may result in coercion errors when used with optimization flags `-O1` or `-O2` in the following situation:

- Converting negative `Int` to `Natural` does not throw an arithmetic underflow error - Converting large `Integer` greater than 2^64 to `Natural` overflow.

For the most part, these errors in and of themselves result only in availability and data integrity issues. However, in some circumstances, they may result in other, more complicated security related flaws, such as buffer overflow conditions.

Patch / fix

  • hackage base 4.15.1.0

CVSS scores

assigned by version score vector
OSV 3.1 6.8 CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:H/A:H

Affected packages

ecosystem package affected fixed in
hackage base
>=4.15.0.0, <4.15.1.0
4.15.1.0

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.