{"uuid": "7b65c447-ff04-4129-9281-e31ee28a0894", "vulnerability": {"vulnId": "CVE-2023-4911", "altId": []}, "gcve": {"origin_uuid": "405284c2-e461-4670-8979-7fd2c9755a60", "object_uuid": "7b65c447-ff04-4129-9281-e31ee28a0894"}, "status": {"exploited": true, "status_reason": "confirmed", "status_updated_at": "2023-11-21T00:00:00+00:00"}, "characteristics": {}, "timestamps": {"asserted_at": "2023-11-21T00:00:00Z", "recorded_at": "2026-02-02T13:24:01Z", "first_seen_at": "2023-11-21T00:00:00Z"}, "scope": {"notes": "KEV entry: GNU C Library Buffer Overflow Vulnerability | Affected: GNU / GNU C Library | Description: 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. | Required action: Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable. | Due date: 2023-12-12 | Known ransomware campaign use (KEV): Unknown | Notes (KEV): 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  "}, "evidence": [{"type": "vendor_report", "source": "cisa-kev", "signal": "successful_exploitation", "confidence": 0.8, "details": {"cwes": ["CWE-122"], "feed": "CISA Known Exploited Vulnerabilities Catalog", "product": "GNU C Library", "due_date": "2023-12-12", "date_added": "2023-11-21", "vendorProject": "GNU", "vulnerabilityName": "GNU C Library Buffer Overflow Vulnerability", "knownRansomwareCampaignUse": "Unknown"}}], "references": [{"id": "CVE-2023-4911", "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?search_api_fulltext=CVE-2023-4911"}]}