CVE-2023-4911

Known Exploited Vulnerability Entry External Catalog

Back to Catalog View Vulnerability
Entry Details

CVE-2023-4911

Confirmed

Yes

2023-11-21 00:00 UTC

Timestamps

2023-11-21

2023-11-21

Scope

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

References
  • {'id': 'CVE-2023-4911', 'url': 'https://www.cisa.gov/known-exploited-vulnerabilities-catalog?search_api_fulltext=CVE-2023-4911'}

7b65c447-ff04-4129-9281-e31ee28a0894

405284c2-e461-4670-8979-7fd2c9755a60

2026-02-02 13:24 UTC

2026-02-06 07:53 UTC

Evidence (1)
Type Source Signal Confidence Details GCVE Metadata
vendor_report cisa-kev successful_exploitation 0.80
View details 
{
  "cwes": [
    "CWE-122"
  ],
  "date_added": "2023-11-21",
  "due_date": "2023-12-12",
  "feed": "CISA Known Exploited Vulnerabilities Catalog",
  "knownRansomwareCampaignUse": "Unknown",
  "product": "GNU C Library",
  "vendorProject": "GNU",
  "vulnerabilityName": "GNU C Library Buffer Overflow Vulnerability"
}
 -
Export Options
JSON Object JSON API View Full Catalog