THREATPORT/VULNERABILITY/CVE-2022-23218
CRITICAL SEVERITY

CVE-2022-23218

Glibc vulnerability

CVSS
9.8
EPSS
4.7%
EPSS pct
91th
Exploited
No known
The deprecated compatibility function svcunix_create in the sunrpc module of the GNU C Library (aka glibc) through 2.34 copies its path argument on the stack without validating its length, which may result in a buffer overflow, potentially resulting in a denial of service or (if an application is not built with a stack protector enabled) arbitrary code execution.
Affected vendor
Gnu
Affected product
Glibc
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness type (CWE)
  • CWE-120 — Classic Buffer Overflow
Published
2022-01-14

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-2022-23218

  • Confirm whether Gnu Glibc is running on any internet-facing host or subdomain.
  • Match discovered service fingerprints against the version affected by CVE-2022-23218.
  • Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2022-23218

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