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National Vulnerability Database

National Vulnerability Database

NVD

National Vulnerability Database
  1. Vulnerabilities

CVE-2023-4911 Detail

Description

A buffer overflow was discovered in the GNU C Library's dynamic loader ld.so while processing the GLIBC_TUNABLES environment variable. This issue could allow a local attacker to use maliciously crafted GLIBC_TUNABLES environment variables when launching binaries with SUID permission to execute code with elevated privileges.


Metrics

 
NVD enrichment efforts reference publicly available information to associate vector strings. CVSS information contributed by other sources is also displayed.
CVSS 4.0 Severity and Vector Strings:

NIST CVSS score
NIST: NVD
N/A
NVD assessment not yet provided.

References to Advisories, Solutions, and Tools

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Hyperlink Resource
https://access.redhat.com/errata/RHSA-2023:5453 Third Party Advisory 
https://access.redhat.com/errata/RHSA-2023:5454 Third Party Advisory 
https://access.redhat.com/errata/RHSA-2023:5455 Third Party Advisory 
https://access.redhat.com/errata/RHSA-2023:5476 Third Party Advisory 
https://access.redhat.com/errata/RHSA-2024:0033 Third Party Advisory 
https://access.redhat.com/security/cve/CVE-2023-4911 Mitigation  Third Party Advisory 
https://bugzilla.redhat.com/show_bug.cgi?id=2238352 Issue Tracking  Patch  Third Party Advisory 
https://www.qualys.com/2023/10/03/cve-2023-4911/looney-tunables-local-privilege-escalation-glibc-ld-so.txt Exploit  Third Party Advisory 
https://www.qualys.com/cve-2023-4911/ Third Party Advisory 

This CVE is in CISA's Known Exploited Vulnerabilities Catalog

Reference CISA's BOD 22-01 and Known Exploited Vulnerabilities Catalog for further guidance and requirements.

Vulnerability Name Date Added Due Date Required Action
GNU C Library Buffer Overflow Vulnerability 11/21/2023 12/12/2023 Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.

Weakness Enumeration

CWE-ID CWE Name Source
CWE-787 Out-of-bounds Write cwe source acceptance level NIST  
CWE-122 Heap-based Buffer Overflow Red Hat, Inc.  

Known Affected Software Configurations Switch to CPE 2.2

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Change History

24 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2023-4911
NVD Published Date:
10/03/2023
NVD Last Modified:
09/17/2024
Source:
Red Hat, Inc.