CVE-2023-4911
GNU C Library Buffer Overflow Vulnerability - [Actively Exploited]
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.
INFO
Published Date :
Oct. 3, 2023, 6:15 p.m.
Last Modified :
Sept. 17, 2024, 7:46 p.m.
Source :
[email protected]
Remotely Exploitable :
No
Impact Score :
5.9
Exploitability Score :
1.8
CISA KEV (Known Exploited Vulnerabilities)
For the benefit of the cybersecurity community and network defenders—and to help every organization better manage vulnerabilities and keep pace with threat activity—CISA maintains the authoritative source of vulnerabilities that have been exploited in the wild.
GNU C Library's dynamic loader ld.so contains a buffer overflow vulnerability when processing the GLIBC_TUNABLES environment variable, allowing a local attacker to execute code with elevated privileges.
Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
This vulnerability affects a common open-source component, third-party library, or a protocol used by different products. Please check with specific vendors for information on patching status. For more information, please see: https://sourceware.org/git/?p=glibc.git;a=commitdiff;h=1056e5b4c3f2d90ed2b4a55f96add28da2f4c8fa, https://access.redhat.com/security/cve/cve-2023-4911, https://www.debian.org/security/2023/dsa-5514
Public PoC/Exploit Available at Github
CVE-2023-4911 has a 57 public PoC/Exploit
available at Github.
Go to the Public Exploits
tab to see the list.
Affected Products
The following products are affected by CVE-2023-4911
vulnerability.
Even if cvefeed.io
is aware of the exact versions of the
products
that
are
affected, the information is not represented in the table below.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2023-4911
.
URL | 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 |
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
This repository is designed to provide a comprehensive collection of study materials, notes, and resources for the Offensive Security Certified Professional (OSCP) exam. It covers all key topics from basic to advanced, helping aspiring penetration testers to prepare efficiently for the exam.
cybersecurity hacking oscp oscp-guide oscp-journey oscp-prep
None
Python C Shell PHP PowerShell ASP.NET
None
Dockerfile Python HTML
Learn about 'How to check and prevent Docker's security vulnerability'
Dockerfile Java
Penetration Testing Notes of OSCP made for Obsidian
None
Dockerfile Go
Latest CVEs with their Proof of Concept exploits.
Python
OSCP and stuffs
None
Python C Shell
PoC for CVE-2023-4911
C Python
OffSec Certified Professional Certification (OSCP).
oscp oscp-cheatsheet oscp-guide oscp-journey oscp-prep oscp-tools offsec-certified-professional-certification offensive-security offensivesecurity awesome-list awesome-lists cheatsheet offensive-ops
Oscp-notes
A general purpose cheat sheet for pentesting and OSCP certification
oscp oscp-cheatsheet oscp-notes oscp-tools pentesting security
Repository containing a Proof of Concept (PoC) demonstrating the impact of CVE-2023-4911, a vulnerability in glibc's ld.so dynamic loader, exposing risks related to Looney Tunables.
C Python
None
Python C Makefile
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2023-4911
vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2023-4911
vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
Modified Analysis by [email protected]
Sep. 17, 2024
Action Type Old Value New Value Changed Reference Type https://access.redhat.com/security/cve/CVE-2023-4911 Third Party Advisory https://access.redhat.com/security/cve/CVE-2023-4911 Mitigation, Third Party Advisory Changed Reference Type https://www.qualys.com/2023/10/03/cve-2023-4911/looney-tunables-local-privilege-escalation-glibc-ld-so.txt Exploit https://www.qualys.com/2023/10/03/cve-2023-4911/looney-tunables-local-privilege-escalation-glibc-ld-so.txt Exploit, Third Party Advisory Added CPE Configuration OR *cpe:2.3:o:canonical:ubuntu_linux:22.04:*:*:*:lts:*:*:* *cpe:2.3:o:canonical:ubuntu_linux:23.04:*:*:*:*:*:*:* *cpe:2.3:o:debian:debian_linux:12.0:*:*:*:*:*:*:* *cpe:2.3:o:debian:debian_linux:13.0:*:*:*:*:*:*:* -
CVE Modified by [email protected]
Sep. 16, 2024
Action Type Old Value New Value Removed Reference Red Hat, Inc. http://www.openwall.com/lists/oss-security/2023/10/03/3 Removed Reference Red Hat, Inc. http://www.openwall.com/lists/oss-security/2023/10/03/2 Removed Reference Red Hat, Inc. https://www.debian.org/security/2023/dsa-5514 Removed Reference Red Hat, Inc. https://security.gentoo.org/glsa/202310-03 Removed Reference Red Hat, Inc. https://lists.fedoraproject.org/archives/list/[email protected]/message/NDAQWHTSVOCOZ5K6KPIWKRT3JX4RTZUR/ Removed Reference Red Hat, Inc. https://lists.fedoraproject.org/archives/list/[email protected]/message/4DBUQRRPB47TC3NJOUIBVWUGFHBJAFDL/ Removed Reference Red Hat, Inc. https://lists.fedoraproject.org/archives/list/[email protected]/message/DFG4P76UHHZEWQ26FWBXG76N2QLKKPZA/ Removed Reference Red Hat, Inc. http://www.openwall.com/lists/oss-security/2023/10/05/1 Removed Reference Red Hat, Inc. http://seclists.org/fulldisclosure/2023/Oct/11 Removed Reference Red Hat, Inc. http://packetstormsecurity.com/files/174986/glibc-ld.so-Local-Privilege-Escalation.html Removed Reference Red Hat, Inc. https://security.netapp.com/advisory/ntap-20231013-0006/ Removed Reference Red Hat, Inc. http://www.openwall.com/lists/oss-security/2023/10/13/11 Removed Reference Red Hat, Inc. http://www.openwall.com/lists/oss-security/2023/10/14/3 Removed Reference Red Hat, Inc. http://www.openwall.com/lists/oss-security/2023/10/14/5 Removed Reference Red Hat, Inc. http://www.openwall.com/lists/oss-security/2023/10/14/6 Removed Reference Red Hat, Inc. http://packetstormsecurity.com/files/176288/Glibc-Tunables-Privilege-Escalation.html -
CVE Modified by [email protected]
May. 23, 2024
Action Type Old Value New Value -
CVE Modified by [email protected]
May. 14, 2024
Action Type Old Value New Value -
Modified Analysis by [email protected]
Feb. 22, 2024
Action Type Old Value New Value Changed Reference Type http://packetstormsecurity.com/files/174986/glibc-ld.so-Local-Privilege-Escalation.html No Types Assigned http://packetstormsecurity.com/files/174986/glibc-ld.so-Local-Privilege-Escalation.html Exploit, Third Party Advisory Changed Reference Type http://packetstormsecurity.com/files/176288/Glibc-Tunables-Privilege-Escalation.html No Types Assigned http://packetstormsecurity.com/files/176288/Glibc-Tunables-Privilege-Escalation.html Exploit, Third Party Advisory Changed Reference Type http://seclists.org/fulldisclosure/2023/Oct/11 No Types Assigned http://seclists.org/fulldisclosure/2023/Oct/11 Exploit, Mailing List, Third Party Advisory Changed Reference Type http://www.openwall.com/lists/oss-security/2023/10/13/11 No Types Assigned http://www.openwall.com/lists/oss-security/2023/10/13/11 Mailing List Changed Reference Type http://www.openwall.com/lists/oss-security/2023/10/14/3 No Types Assigned http://www.openwall.com/lists/oss-security/2023/10/14/3 Mailing List Changed Reference Type http://www.openwall.com/lists/oss-security/2023/10/14/5 No Types Assigned http://www.openwall.com/lists/oss-security/2023/10/14/5 Mailing List Changed Reference Type http://www.openwall.com/lists/oss-security/2023/10/14/6 No Types Assigned http://www.openwall.com/lists/oss-security/2023/10/14/6 Third Party Advisory Changed Reference Type https://access.redhat.com/errata/RHSA-2023:5476 No Types Assigned https://access.redhat.com/errata/RHSA-2023:5476 Third Party Advisory Changed Reference Type https://access.redhat.com/errata/RHSA-2024:0033 No Types Assigned https://access.redhat.com/errata/RHSA-2024:0033 Third Party Advisory Changed Reference Type https://security.netapp.com/advisory/ntap-20231013-0006/ No Types Assigned https://security.netapp.com/advisory/ntap-20231013-0006/ Mailing List, Third Party Advisory Changed CPE Configuration OR *cpe:2.3:a:gnu:glibc:-:*:*:*:*:*:*:* OR *cpe:2.3:a:gnu:glibc:*:*:*:*:*:*:*:* versions from (including) 2.34 up to (excluding) 2.39 Changed CPE Configuration OR *cpe:2.3:a:redhat:virtualization:4.0:*:*:*:*:*:*:* *cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:* *cpe:2.3:o:redhat:enterprise_linux:9.0:*:*:*:*:*:*:* OR *cpe:2.3:a:redhat:codeready_linux_builder_eus:8.6:*:*:*:*:*:*:* *cpe:2.3:a:redhat:codeready_linux_builder_for_arm64_eus:8.6:*:*:*:*:*:*:* *cpe:2.3:a:redhat:codeready_linux_builder_for_ibm_z_systems_eus:8.6:*:*:*:*:*:*:* *cpe:2.3:a:redhat:codeready_linux_builder_for_power_little_endian_eus:8.6:*:*:*:*:*:*:* *cpe:2.3:a:redhat:virtualization:4.0:*:*:*:*:*:*:* *cpe:2.3:a:redhat:virtualization_host:4.0:*:*:*:*:*:*:* *cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:* *cpe:2.3:o:redhat:enterprise_linux:9.0:*:*:*:*:*:*:* *cpe:2.3:o:redhat:enterprise_linux_eus:8.6:*:*:*:*:*:*:* *cpe:2.3:o:redhat:enterprise_linux_for_arm_64_eus:8.6_aarch64:*:*:*:*:*:*:* *cpe:2.3:o:redhat:enterprise_linux_for_ibm_z_systems_eus_s390x:8.6:*:*:*:*:*:*:* *cpe:2.3:o:redhat:enterprise_linux_for_power_big_endian_eus:8.6_ppc64le:*:*:*:*:*:*:* *cpe:2.3:o:redhat:enterprise_linux_server_aus:8.6:*:*:*:*:*:*:* *cpe:2.3:o:redhat:enterprise_linux_server_tus:8.6:*:*:*:*:*:*:* -
CVE Modified by [email protected]
Jan. 03, 2024
Action Type Old Value New Value Added Reference Red Hat, Inc. https://access.redhat.com/errata/RHSA-2024:0033 [No types assigned] -
CVE Modified by [email protected]
Dec. 21, 2023
Action Type Old Value New Value Added Reference Red Hat, Inc. http://packetstormsecurity.com/files/176288/Glibc-Tunables-Privilege-Escalation.html [No types assigned] -
CVE Modified by [email protected]
Nov. 07, 2023
Action Type Old Value New Value Added CWE Red Hat, Inc. CWE-122 -
CVE Modified by [email protected]
Oct. 14, 2023
Action Type Old Value New Value Added Reference http://www.openwall.com/lists/oss-security/2023/10/14/6 [No Types Assigned] -
CVE Modified by [email protected]
Oct. 14, 2023
Action Type Old Value New Value Added Reference http://www.openwall.com/lists/oss-security/2023/10/14/5 [No Types Assigned] -
CVE Modified by [email protected]
Oct. 14, 2023
Action Type Old Value New Value Added Reference http://www.openwall.com/lists/oss-security/2023/10/14/3 [No Types Assigned] -
CVE Modified by [email protected]
Oct. 14, 2023
Action Type Old Value New Value Added Reference http://www.openwall.com/lists/oss-security/2023/10/13/11 [No Types Assigned] -
CVE Modified by [email protected]
Oct. 13, 2023
Action Type Old Value New Value Added Reference https://security.netapp.com/advisory/ntap-20231013-0006/ [No Types Assigned] -
CVE Modified by [email protected]
Oct. 06, 2023
Action Type Old Value New Value Added Reference http://packetstormsecurity.com/files/174986/glibc-ld.so-Local-Privilege-Escalation.html [No Types Assigned] -
CVE Modified by [email protected]
Oct. 06, 2023
Action Type Old Value New Value Added Reference http://seclists.org/fulldisclosure/2023/Oct/11 [No Types Assigned] -
CVE Modified by [email protected]
Oct. 05, 2023
Action Type Old Value New Value Added Reference https://access.redhat.com/errata/RHSA-2023:5476 [No Types Assigned] -
Initial Analysis by [email protected]
Oct. 05, 2023
Action Type Old Value New Value Added CVSS V3.1 NIST AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H Changed Reference Type http://www.openwall.com/lists/oss-security/2023/10/03/2 No Types Assigned http://www.openwall.com/lists/oss-security/2023/10/03/2 Exploit, Mailing List Changed Reference Type http://www.openwall.com/lists/oss-security/2023/10/03/3 No Types Assigned http://www.openwall.com/lists/oss-security/2023/10/03/3 Mailing List, Patch Changed Reference Type http://www.openwall.com/lists/oss-security/2023/10/05/1 No Types Assigned http://www.openwall.com/lists/oss-security/2023/10/05/1 Mailing List, Third Party Advisory Changed Reference Type https://access.redhat.com/errata/RHSA-2023:5453 No Types Assigned https://access.redhat.com/errata/RHSA-2023:5453 Third Party Advisory Changed Reference Type https://access.redhat.com/errata/RHSA-2023:5454 No Types Assigned https://access.redhat.com/errata/RHSA-2023:5454 Third Party Advisory Changed Reference Type https://access.redhat.com/errata/RHSA-2023:5455 No Types Assigned https://access.redhat.com/errata/RHSA-2023:5455 Third Party Advisory Changed Reference Type https://access.redhat.com/security/cve/CVE-2023-4911 No Types Assigned https://access.redhat.com/security/cve/CVE-2023-4911 Third Party Advisory Changed Reference Type https://bugzilla.redhat.com/show_bug.cgi?id=2238352 No Types Assigned https://bugzilla.redhat.com/show_bug.cgi?id=2238352 Issue Tracking, Patch, Third Party Advisory Changed Reference Type https://lists.fedoraproject.org/archives/list/[email protected]/message/4DBUQRRPB47TC3NJOUIBVWUGFHBJAFDL/ No Types Assigned https://lists.fedoraproject.org/archives/list/[email protected]/message/4DBUQRRPB47TC3NJOUIBVWUGFHBJAFDL/ Mailing List Changed Reference Type https://lists.fedoraproject.org/archives/list/[email protected]/message/DFG4P76UHHZEWQ26FWBXG76N2QLKKPZA/ No Types Assigned https://lists.fedoraproject.org/archives/list/[email protected]/message/DFG4P76UHHZEWQ26FWBXG76N2QLKKPZA/ Exploit, Mailing List Changed Reference Type https://lists.fedoraproject.org/archives/list/[email protected]/message/NDAQWHTSVOCOZ5K6KPIWKRT3JX4RTZUR/ No Types Assigned https://lists.fedoraproject.org/archives/list/[email protected]/message/NDAQWHTSVOCOZ5K6KPIWKRT3JX4RTZUR/ Mailing List Changed Reference Type https://security.gentoo.org/glsa/202310-03 No Types Assigned https://security.gentoo.org/glsa/202310-03 Third Party Advisory Changed Reference Type https://www.debian.org/security/2023/dsa-5514 No Types Assigned https://www.debian.org/security/2023/dsa-5514 Third Party Advisory Changed Reference Type https://www.qualys.com/2023/10/03/cve-2023-4911/looney-tunables-local-privilege-escalation-glibc-ld-so.txt No Types Assigned https://www.qualys.com/2023/10/03/cve-2023-4911/looney-tunables-local-privilege-escalation-glibc-ld-so.txt Exploit Changed Reference Type https://www.qualys.com/cve-2023-4911/ No Types Assigned https://www.qualys.com/cve-2023-4911/ Third Party Advisory Added CWE NIST CWE-787 Added CPE Configuration OR *cpe:2.3:a:gnu:glibc:-:*:*:*:*:*:*:* Added CPE Configuration OR *cpe:2.3:o:fedoraproject:fedora:37:*:*:*:*:*:*:* *cpe:2.3:o:fedoraproject:fedora:38:*:*:*:*:*:*:* *cpe:2.3:o:fedoraproject:fedora:39:*:*:*:*:*:*:* Added CPE Configuration OR *cpe:2.3:a:redhat:virtualization:4.0:*:*:*:*:*:*:* *cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:* *cpe:2.3:o:redhat:enterprise_linux:9.0:*:*:*:*:*:*:* -
CVE Modified by [email protected]
Oct. 05, 2023
Action Type Old Value New Value Added Reference https://access.redhat.com/errata/RHSA-2023:5454 [No Types Assigned] Added Reference https://access.redhat.com/errata/RHSA-2023:5453 [No Types Assigned] Added Reference https://access.redhat.com/errata/RHSA-2023:5455 [No Types Assigned] -
CVE Modified by [email protected]
Oct. 05, 2023
Action Type Old Value New Value Added Reference http://www.openwall.com/lists/oss-security/2023/10/05/1 [No Types Assigned] -
CVE Modified by [email protected]
Oct. 04, 2023
Action Type Old Value New Value Added Reference https://lists.fedoraproject.org/archives/list/[email protected]/message/DFG4P76UHHZEWQ26FWBXG76N2QLKKPZA/ [No Types Assigned] -
CVE Modified by [email protected]
Oct. 04, 2023
Action Type Old Value New Value Added Reference https://lists.fedoraproject.org/archives/list/[email protected]/message/NDAQWHTSVOCOZ5K6KPIWKRT3JX4RTZUR/ [No Types Assigned] Added Reference https://lists.fedoraproject.org/archives/list/[email protected]/message/4DBUQRRPB47TC3NJOUIBVWUGFHBJAFDL/ [No Types Assigned] -
CVE Modified by [email protected]
Oct. 04, 2023
Action Type Old Value New Value Added Reference https://security.gentoo.org/glsa/202310-03 [No Types Assigned] -
CVE Modified by [email protected]
Oct. 03, 2023
Action Type Old Value New Value Added Reference https://www.debian.org/security/2023/dsa-5514 [No Types Assigned] -
CVE Modified by [email protected]
Oct. 03, 2023
Action Type Old Value New Value Added Reference http://www.openwall.com/lists/oss-security/2023/10/03/3 [No Types Assigned] Added Reference http://www.openwall.com/lists/oss-security/2023/10/03/2 [No Types Assigned]
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2023-4911
is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2023-4911
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
2.75 }} -1.03%
score
0.90750
percentile