CVE-2024-33600: CWE-476 NULL Pointer Dereference in The GNU C Library glibc
nscd: Null pointer crashes after notfound response If the Name Service Cache Daemon's (nscd) cache fails to add a not-found netgroup response to the cache, the client request can result in a null pointer dereference. This flaw was introduced in glibc 2.15 when the cache was added to nscd. This vulnerability is only present in the nscd binary.
AI Analysis
Technical Summary
The vulnerability CVE-2024-33600 involves a null pointer dereference in the nscd component of glibc. Specifically, if nscd's cache fails to add a not-found netgroup response, subsequent client requests may trigger a null pointer dereference leading to a crash. This flaw was introduced starting with glibc version 2.15 when caching was added to nscd. The issue does not affect other parts of glibc outside the nscd binary.
Potential Impact
Successful exploitation results in a denial of service due to a null pointer dereference crash of the nscd daemon. There is no impact on confidentiality or integrity. The CVSS score of 5.9 reflects a medium severity denial of service vulnerability exploitable remotely but requiring high attack complexity and no privileges.
Mitigation Recommendations
No official patch or remediation level has been published yet. Patch status is not yet confirmed — check the GNU C Library vendor advisory for current remediation guidance. Until a fix is available, consider disabling or restricting use of nscd if feasible to mitigate potential service disruption.
CVE-2024-33600: CWE-476 NULL Pointer Dereference in The GNU C Library glibc
Description
nscd: Null pointer crashes after notfound response If the Name Service Cache Daemon's (nscd) cache fails to add a not-found netgroup response to the cache, the client request can result in a null pointer dereference. This flaw was introduced in glibc 2.15 when the cache was added to nscd. This vulnerability is only present in the nscd binary.
CVSS v3.1
Score 5.9medium
Affected software
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Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
The vulnerability CVE-2024-33600 involves a null pointer dereference in the nscd component of glibc. Specifically, if nscd's cache fails to add a not-found netgroup response, subsequent client requests may trigger a null pointer dereference leading to a crash. This flaw was introduced starting with glibc version 2.15 when caching was added to nscd. The issue does not affect other parts of glibc outside the nscd binary.
Potential Impact
Successful exploitation results in a denial of service due to a null pointer dereference crash of the nscd daemon. There is no impact on confidentiality or integrity. The CVSS score of 5.9 reflects a medium severity denial of service vulnerability exploitable remotely but requiring high attack complexity and no privileges.
Mitigation Recommendations
No official patch or remediation level has been published yet. Patch status is not yet confirmed — check the GNU C Library vendor advisory for current remediation guidance. Until a fix is available, consider disabling or restricting use of nscd if feasible to mitigate potential service disruption.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- glibc
- Date Reserved
- 2024-04-24T20:35:08.340Z
- Cvss Version
- 3.1
- State
- PUBLISHED
Threat ID: 6a0317d3cbff5d8610d954b1
Added to database: 05/12/2026, 12:06:43 UTC
Last enriched: 07/15/2026, 11:26:36 UTC
Last updated: 09/10/2026, 19:36:48 UTC
Views: 123
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