Buffer overflow in GNU Glibc
CVE-2022-23218
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.
Vulnerability class: Buffer Overflow
EPSS: 0.047 (91.2th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
Affected products
- Gnu Glibc
- Oracle Communications_cloud_native_core_unified_data_repository — versions 22.2.0
- Oracle Enterprise_operations_monitor — versions 4.3, 4.4, 5.0
- Debian Debian_linux — versions 10.0
- N/a — versions n/a
Weakness classification (CWE)
Public proof-of-concept exploits
References
- cve@mitre.org (Exploit, Third Party Advisory, Issue Tracking)
- cve@mitre.org (Patch, Third Party Advisory)
- cve@mitre.org (vendor-advisory, Third Party Advisory)
- cve@mitre.org (mailing-list, Mailing List, Third Party Advisory)
Frequently asked questions
- What is CVE-2022-23218?
- CVE-2022-23218 is a critical-severity vulnerability in GNU Glibc, classified under Buffer Copy without Checking Size of Input (Classic Buffer Overflow). CVSS score: 9.8/10. Published 2022-01-14.
- How severe is CVE-2022-23218?
- Critical severity. CVSS v3 base score is 9.8 out of 10.
- Is CVE-2022-23218 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.