THREATPORT/VULNERABILITY/CVE-2018-6485
CRITICAL SEVERITY

CVE-2018-6485

Glibc vulnerability

CVSS
9.8
EPSS
4.7%
EPSS pct
91th
Exploited
No known
An integer overflow in the implementation of the posix_memalign in memalign functions in the GNU C Library (aka glibc or libc6) 2.26 and earlier could cause these functions to return a pointer to a heap area that is too small, potentially leading to heap corruption.
Affected vendor
Gnu
Affected product
Glibc
CVSS vector
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness type (CWE)
  • CWE-190 — Integer Overflow or Wraparound
  • CWE-787 — Out-of-bounds Write
Published
2018-02-01

Risk analysis

Based on its CVSS vector, this vulnerability is exploitable over the network, low attack complexity, requiring no privileges, no user interaction. Successful exploitation leads to high impact to confidentiality, high impact to integrity, high impact to availability.

Its EPSS score of 4.7% reflects a lower probability of exploitation activity in the wild over the next 30 days, placing it above 91% of all scored CVEs.

Check your external exposure to CVE-2018-6485

  • Confirm whether Gnu Glibc is running on any internet-facing host or subdomain.
  • Match discovered service fingerprints against the version affected by CVE-2018-6485.
  • Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2018-6485

ThreatPort's external attack surface scanner checks your internet-facing assets — agentlessly, from the outside in — for the exposed services and versions that CVE-2018-6485 affects, then prioritises the finding by real risk using CISA KEV and FIRST.org EPSS.

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