CVE-2023-4911
high · 7.8Actively exploitedOn the CISA Known Exploited Vulnerabilities catalog
Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
Added 2023-11-21Remediation due 2023-12-12
A public exploit / detection template exists
Weaponised detection is publicly available, which meaningfully raises real-world risk regardless of CVSS. nuclei-templates →
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.
7.8
CVSS
81.4%
EPSS (exploit prob.)
100th
EPSS percentile
2023-10-03
Published
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Weaknesses
CWE-122CWE-787
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| netapp | bootstrap_os | all versions |
| netapp | hci_compute_node | all versions |
| siemens | simatic_s7-1500_cpu_1518-4_pn/dp_mfp_firmware | >= 3.1.5 |
| siemens | simatic_s7-1500_cpu_1518-4_pn/dp_mfp | all versions |
| siemens | simatic_s7-1500_cpu_1518f-4_pn/dp_mfp_firmware | >= 3.1.5 |
| siemens | simatic_s7-1500_cpu_1518f-4_pn/dp_mfp | all versions |
| siemens | siplus_s7-1500_cpu_1518-4_pn/dp_mfp_firmware | >= 3.1.5 |
| siemens | siplus_s7-1500_cpu_1518-4_pn/dp_mfp | all versions |
| siemens | simatic_s7-1500_tm_mfp_firmware | < 1.1 |
| siemens | simatic_s7-1500_tm_mfp | all versions |
| gnu | glibc | >= 2.34, < 2.39 |
| fedoraproject | fedora | 37 |
| fedoraproject | fedora | 38 |
| fedoraproject | fedora | 39 |
| redhat | codeready_linux_builder | 9.0 |
| redhat | codeready_linux_builder_eus | 8.6 |
| redhat | codeready_linux_builder_eus | 9.2 |
| redhat | codeready_linux_builder_eus | 9.4 |
| redhat | codeready_linux_builder_eus | 9.6 |
| redhat | codeready_linux_builder_for_arm64 | 9.0_aarch64 |
| redhat | codeready_linux_builder_for_arm64_eus | 8.6 |
| redhat | codeready_linux_builder_for_arm64_eus | 9.2_aarch64 |
| redhat | codeready_linux_builder_for_arm64_eus | 9.4_aarch64 |
| redhat | codeready_linux_builder_for_arm64_eus | 9.6_aarch64 |
| redhat | codeready_linux_builder_for_ibm_z_systems | 9.0_s390x |
| redhat | codeready_linux_builder_for_ibm_z_systems_eus | 8.6 |
| redhat | codeready_linux_builder_for_ibm_z_systems_eus | 9.2_s390x |
| redhat | codeready_linux_builder_for_ibm_z_systems_eus | 9.4_s390x |
| redhat | codeready_linux_builder_for_ibm_z_systems_eus | 9.6_s390x |
| redhat | codeready_linux_builder_for_power_little_endian | 9.0_ppc64le |
| redhat | codeready_linux_builder_for_power_little_endian_eus | 8.6 |
| redhat | codeready_linux_builder_for_power_little_endian_eus | 9.2_ppc64le |
| redhat | codeready_linux_builder_for_power_little_endian_eus | 9.4_ppc64le |
| redhat | codeready_linux_builder_for_power_little_endian_eus | 9.6_ppc64le |
| redhat | virtualization | 4.0 |
| redhat | virtualization_host | 4.0 |
| redhat | enterprise_linux | 8.0 |
| redhat | enterprise_linux | 9.0 |
| redhat | enterprise_linux_eus | 8.6 |
| redhat | enterprise_linux_eus | 9.2 |
Check a specific version with /api/v1/cve/match.
References
- https://access.redhat.com/errata/RHSA-2023:5453
- https://access.redhat.com/errata/RHSA-2023:5454
- https://access.redhat.com/errata/RHSA-2023:5455
- https://access.redhat.com/errata/RHSA-2023:5476
- https://access.redhat.com/errata/RHSA-2024:0033
- https://access.redhat.com/security/cve/CVE-2023-4911
- https://bugzilla.redhat.com/show_bug.cgi?id=2238352
- https://www.qualys.com/2023/10/03/cve-2023-4911/looney-tunables-local-privilege-escalation-glibc-ld-so.txt
- https://www.qualys.com/cve-2023-4911/
- http://packetstormsecurity.com/files/174986/glibc-ld.so-Local-Privilege-Escalation.html
- http://packetstormsecurity.com/files/176288/Glibc-Tunables-Privilege-Escalation.html
- http://seclists.org/fulldisclosure/2023/Oct/11
- http://www.openwall.com/lists/oss-security/2023/10/03/2
- http://www.openwall.com/lists/oss-security/2023/10/03/3
- http://www.openwall.com/lists/oss-security/2023/10/05/1
- http://www.openwall.com/lists/oss-security/2023/10/13/11
- http://www.openwall.com/lists/oss-security/2023/10/14/3
- http://www.openwall.com/lists/oss-security/2023/10/14/5
- http://www.openwall.com/lists/oss-security/2023/10/14/6
- https://access.redhat.com/errata/RHSA-2023:5453
- https://access.redhat.com/errata/RHSA-2023:5454
- https://access.redhat.com/errata/RHSA-2023:5455
- https://access.redhat.com/errata/RHSA-2023:5476
- https://access.redhat.com/errata/RHSA-2024:0033
- https://access.redhat.com/security/cve/CVE-2023-4911
Query this programmatically:
curl https://evil-db.io/api/v1/cve/CVE-2023-4911