Coverage › CVE-2023-4911
CVE-2023-4911 Unmapped
GNU C Library Buffer Overflow Vulnerability
- Vendor / product
- GNU — GNU C Library
- Description (CISA)
- 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.
- Added to KEV
- 2023-11-21
- Due date
- 2023-12-12
- Required action
- Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
- Known ransomware use
- Unknown
- CWE
- CWE-122
- CISA notes
- 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
https://nvd.nist.gov/vuln/detail/CVE-2023-4911 - Elsewhere
- cve.org · NVD · CISA KEV · JSON
ATT&CK techniques
No public source states how this vulnerability is exploited in ATT&CK terms.
The only authoritative CVE → ATT&CK mapping in the open — CTID's Mappings Explorer, pinned to a KEV snapshot of 2025-07-28 and ATT&CK 16.1 — does not include CVE-2023-4911. CISA's catalogue carries no technique field. kevmap does not infer techniques from the CWE (CWE-122) — here is why — and does not guess.
This page will change state automatically if a mapping is published. What is shown above is everything CISA publishes about the entry.