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CVE-2023-4911 - GNU GNU C Library

AI Vulnerability Context

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.

Overview

A source-backed snapshot of this vulnerability.

CISA KEVyesWhether CISA lists this as exploited.
Techniques0AI attack methods connected to this vulnerability.
Case studies0Examples where this vulnerability is mentioned.

Vulnerability status

How serious this vulnerability is and whether it is known to be exploited.

CISA KEVHIGH
CVE ID
CVE-2023-4911
Vendor/project
GNU
Product
GNU C Library
Vulnerability name
GNU C Library Buffer Overflow Vulnerability
Date added
2023-11-21
Due date
2023-12-12
Known ransomware campaign use
Unknown
CVSS v3
7.8
CWE-122

Exploit context

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No description available. The source record only contains identifiers and metadata.

Related AI techniques

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No related AI attack methods. No AI attack method is connected to this vulnerability in the current data.

Related case studies

Examples where this vulnerability is mentioned.

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No related case studies. No case study currently mentions this vulnerability.

Source evidence

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Original source

Original source links

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NVD CVE pagehttps://nvd.nist.gov/vuln/detail/CVE-2023-4911CVE API docshttps://nvd.nist.gov/developers/vulnerabilitiesData feedshttps://nvd.nist.gov/vuln/data-feedsCataloghttps://www.cisa.gov/known-exploited-vulnerabilities-catalogData repositoryhttps://github.com/cisagov/kev-dataaf854a3a-2127-422b-91ae-364da2661108https://access.redhat.com/errata/RHSA-2023:5453af854a3a-2127-422b-91ae-364da2661108https://access.redhat.com/errata/RHSA-2023:5454af854a3a-2127-422b-91ae-364da2661108https://access.redhat.com/errata/RHSA-2023:5455af854a3a-2127-422b-91ae-364da2661108https://access.redhat.com/errata/RHSA-2023:5476af854a3a-2127-422b-91ae-364da2661108https://access.redhat.com/errata/RHSA-2024:0033af854a3a-2127-422b-91ae-364da2661108https://access.redhat.com/security/cve/CVE-2023-4911af854a3a-2127-422b-91ae-364da2661108https://bugzilla.redhat.com/show_bug.cgi?id=2238352af854a3a-2127-422b-91ae-364da2661108https://www.qualys.com/2023/10/03/cve-2023-4911/looney-tunables-local-privilege-escalation-glibc-ld-so.txtaf854a3a-2127-422b-91ae-364da2661108https://www.qualys.com/cve-2023-4911/af854a3a-2127-422b-91ae-364da2661108http://packetstormsecurity.com/files/174986/glibc-ld.so-Local-Privilege-Escalation.htmlaf854a3a-2127-422b-91ae-364da2661108http://packetstormsecurity.com/files/176288/Glibc-Tunables-Privilege-Escalation.htmlaf854a3a-2127-422b-91ae-364da2661108http://seclists.org/fulldisclosure/2023/Oct/11