CVE-2022-23219

Severity: critical (CVSS 9.8 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 4.7% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2022-01-14 · updated 2026-10-14
Weakness: CWE-120

Description

The deprecated compatibility function clnt_create in the sunrpc module of the GNU C Library (aka glibc) through 2.34 copies its hostname 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 products

Debian Linux: 10.0
GNU C Library (glibc): before 2.31 — fixed in 2.31
Oracle Communications Cloud Native Core Binding Support Function: 22.1.3
Oracle Communications Cloud Native Core Network Function Cloud Native Environment: 22.1.0
Oracle Communications Cloud Native Core Network Repository Function: 22.1.2, 22.2.0
Oracle Communications Cloud Native Core Security Edge Protection Proxy: 22.1.1
Oracle Communications Cloud Native Core Unified Data Repository: 22.2.0
Oracle Enterprise Operations Monitor: 4.3, 4.4, 5.0

How to fix

Upgrade to a fixed version: GNU C Library (glibc) 2.31. Check the vendor advisory for mitigations.

References

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