CVE-2018-18928CWE-190

CVE-2018-18928

Critical · published November 5, 2018

CVSS v3.0
9.8
EPSS
3%
Percentile
86.9
In the wild
Unconfirmed
What it is

⚠️ An integer overflow in ICU's scientific string conversion could lead to unexpected results. It's like having a math book that suddenly starts printing nonsensical answers because it can't handle a big problem! 📚 Imagine you're at a restaurant and order a massive pizza. The chef miscalculates the size, and instead of a giant pie, you get a single slice because the system can't handle the large request! That's what happens here when the DecimalQuantity mismanages numbers. An attacker could exploit this flaw to generate incorrect decimal representations, leading to data corruption or misinterpretation in applications that rely on accurate numeric data. While the immediate threat is unknown, this could result in surprisingly sneaky issues ranging from minor user errors to larger systemic failures.

Put simply

Imagine you're at a restaurant and order a massive pizza. The chef miscalculates the size, and instead of a giant pie, you get a single slice because the system can't handle the large request! That's what happens here when the DecimalQuantity mismanages numbers. This vulnerability arises from an integer overflow in the method `DecimalQuantity::toScientificString()`, which can mishandle very large or complex numbers, resulting in unexpected output when performing operations on them.

What to do

An attacker could exploit this flaw to generate incorrect decimal representations, leading to data corruption or misinterpretation in applications that rely on accurate numeric data. While the immediate threat is unknown, this could result in surprisingly sneaky issues ranging from minor user errors to larger systemic failures. Developers should update their ICU libraries to a recent version that resolves this integer overflow issue. Regularly auditing your code and ensuring you’re using stable, patched versions of libraries will help prevent such vulnerabilities from affecting your applications. You've got this! Stay vigilant and keep your systems updated for a safer coding environment. 🛡️

The record
Technical detail
CVSS v3.0
9.8 · CRITICAL
Vector
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS v4.0
Not supplied
EPSS
0.02904 · 86.9th percentile
Weakness
CWE-190 · Integer Overflow or Wraparound
Published
2018-11-05T01:29Z
Affected products (1)
ProductVersionsFixed in
icu-project/international_components_for_unicodeall versions—
References (7)
EPSS history
Timeline
  • 04 NOV 20:00Z
    International Components for Unicode (ICU) for C/C++ 63.1 has an integer overflow in number::impl::DecimalQuantity::toScientificString() in…
    cvelistv5