Home/CVE/The deprecated compatibility function svcunix_create in the sunrpc module of the GNU C Library (aka glibc) through 2.34
CVE

CVE-2022-23218

The deprecated compatibility function svcunix_create in the sunrpc module of the GNU C Library (aka glibc) through 2.34

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.

CRITICAL · CVSS 9.8 EPSS 0.00515
Act now
  • Public exploit or PoC is available
  • SSVC automatable: yes - attacks can be scripted at scale
  • CVSS base score ≥ 7.0
Sigma rules0 YARA rules0
⬡

Weakness Classification

CWE-120Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')
CWE-120Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')
▤

Affected Products & Versions

4
gnu glibc< 2.31
oracle communications cloud native core unified data repositoryall versions
oracle enterprise operations monitorall versions
debian linuxall versions
⚠

Public Exploits & PoCs

1
pocsourceware.org · show_bug.cgi?id=28768sourceware.org
▣

Scoring & Timeline

9.8
CRITICAL · CVSS v3.1 · cve@mitre.org
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD14 Jan 2022 · 07:15 AM
CVSS VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
SSVC triage · cisa-vulnrichment
Exploitation
poc
Automatable
yes
Technical impact
total
SSVC asks the questions that actually drive patch urgency: is it being exploited, can attacks be automated, and how total is the impact.
⚑

Vendor Advisories

18
suse-csafopenSUSE-SU-2024:11850-1
siemens-csafSSA-398330
siemens-csafSSA-099606
siemens-csafSSA-831302
suse-csafSUSE-SU-2022:0909-1
🔗

References & Sources

3
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
https://lists.debian.org/debian-lts-announce/2022/10/msg00021.htmlMailing ListThird Party Advisory
https://security.gentoo.org/glsa/202208-24Third Party Advisory
https://www.oracle.com/security-alerts/cpujul2022.htmlPatchThird Party Advisory
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