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Case File

CVE-2018-6551

CRITICAL · CVSS 9.8 EPSS 2.19%

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2018-02-02 · Last synced 2026-08-04

CyberRota Analysis

This is a critical severity vulnerability with a CVSS score of 9.8. See the original NVD description below for full technical details.

CVE
CVE-2018-6551
Severity
CRITICAL
CVSS
9.8
EPSS
2.19%

Original NVD Description

The malloc implementation in the GNU C Library (aka glibc or libc6), from version 2.24 to 2.26 on powerpc, and only in version 2.26 on i386, did not properly handle malloc calls with arguments close to SIZE_MAX and could return a pointer to a heap region that is smaller than requested, eventually leading to heap corruption.

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