CVE-2024-33600— nscd: Null pointer crashes after notfound response
Possible ATT&CK Techniques 1AI
T1211 · Exploitation for StealthAffected Version Matrix 1
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| The GNU C Library | glibc | 2.15< 2.40 | affected |
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I. Basic Information for CVE-2024-33600
Vulnerability Information
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Vulnerability Title
nscd: Null pointer crashes after notfound response
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
空指针解引用
Source: CVE Program / CVE List V5
Vulnerability Title
glibc 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
glibc（GNU C Library）是GNU计划所实现的C标准库。 glibc 存在安全漏洞，该漏洞源于缓存插入失败后，addgetnetgrentX 尝试发送不存在的响应，可能会导致空指针取消引用，从而导致服务崩溃。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| The GNU C Library | glibc | 2.15 ~ 2.40 | - |
II. Public POCs for CVE-2024-33600
| # | POC Description | Source Link | Shenlong Link |
|---|
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Vendor Advisories for CVE-2024-33600 (1)
Mailing List Discussions for CVE-2024-33600 (2)
Other References for CVE-2024-33600 (1)
Same Patch Batch · The GNU C Library · 2024-05-06 · 4 CVEs total
| CVE-2024-33599 | nscd: Stack-based buffer overflow in netgroup cache | |
| CVE-2024-33602 | nscd: netgroup cache assumes NSS callback uses in-buffer strings | |
| CVE-2024-33601 | nscd: netgroup cache may terminate daemon on memory allocation failure |
IV. Related Vulnerabilities
Same product: glibc
- CVE-2026-6238
Buffer overread in ns_printrrf with corrupted RDATA field - CVE-2026-5435
Potential buffer overflow in ns_sprintrrf TSIG handling path - CVE-2026-5450
scanf %mc off-by-one heap buffer overflow - CVE-2026-5928
Potential buffer under-read in ungetwc - CVE-2026-4046
iconv crash due to assertion failure with untrusted input
Same vendor: The GNU C Library
- CVE-2026-6238
Buffer overread in ns_printrrf with corrupted RDATA field - CVE-2026-5435
Potential buffer overflow in ns_sprintrrf TSIG handling path - CVE-2026-5450
scanf %mc off-by-one heap buffer overflow - CVE-2026-5928
Potential buffer under-read in ungetwc - CVE-2026-4046
iconv crash due to assertion failure with untrusted input
Same weakness: CWE-476
- CVE-2026-45816
Apache NimBLE: NULL pointer dereference vulnerability in SMP - CVE-2026-50032
NULL Pointer Dereference in MZ Automation libIEC61850 - CVE-2026-13065
MongoDB $linearFill Window Function Improper Input Validatio - CVE-2026-13070
Improper Validation of OCSP Response During Outbound TLS Han - CVE-2026-55717
'serve-expired-client-timeout' and 'response-ip' CNAME redir
V. Comments for CVE-2024-33600
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